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diff --git a/build/icon.icns b/build/icon.icns
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diff --git a/build/icon.png b/build/icon.png
index 314953dd..e4888528 100644
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diff --git a/build/icons/512x512.png b/build/icons/512x512.png
deleted file mode 100644
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diff --git a/build/installerSidebar.bmp b/build/installerSidebar.bmp
new file mode 100644
index 00000000..57ec352a
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diff --git a/build/uninstallerSidebar.bmp b/build/uninstallerSidebar.bmp
new file mode 100644
index 00000000..43760d56
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diff --git a/src/actions/accounts.js b/src/actions/accounts.js
index 99ffe0c6..d5b58660 100644
--- a/src/actions/accounts.js
+++ b/src/actions/accounts.js
@@ -6,7 +6,7 @@ import db from 'helpers/db'
 
 export type AddAccount = Account => *
 export const addAccount: AddAccount = payload => ({
-  type: 'ADD_ACCOUNT',
+  type: 'DB:ADD_ACCOUNT',
   payload,
 })
 
@@ -48,4 +48,4 @@ export const updateAccount: UpdateAccount = payload => ({
   },
 })
 
-export const cleanAccountsCache = () => ({ type: 'CLEAN_ACCOUNTS_CACHE' })
+export const cleanAccountsCache = () => ({ type: 'DB:CLEAN_ACCOUNTS_CACHE' })
diff --git a/src/api/Fees.js b/src/api/Fees.js
index 21063c9d..7967f9a7 100644
--- a/src/api/Fees.js
+++ b/src/api/Fees.js
@@ -1,5 +1,6 @@
 // @flow
 import invariant from 'invariant'
+import LRU from 'lru-cache'
 import type { Currency } from '@ledgerhq/live-common/lib/types'
 import createCustomErrorClass from 'helpers/createCustomErrorClass'
 import { blockchainBaseURL } from './Ledger'
@@ -11,10 +12,20 @@ export type Fees = {
   [_: string]: number,
 }
 
+const cache = LRU({
+  maxAge: 5 * 60 * 1000,
+})
+
 export const getEstimatedFees = async (currency: Currency): Promise<Fees> => {
+  const key = currency.id
+  let promise = cache.get(key)
+  if (promise) return promise.then(r => r.data)
   const baseURL = blockchainBaseURL(currency)
   invariant(baseURL, `Fees for ${currency.id} are not supported`)
-  const { data, status } = await network({ method: 'GET', url: `${baseURL}/fees` })
+  promise = network({ method: 'GET', url: `${baseURL}/fees` })
+  cache.set(key, promise)
+  const { data, status } = await promise
+  if (status < 200 || status >= 300) cache.del(key)
   if (data) {
     return data
   }
diff --git a/src/bridge/BridgeSyncContext.js b/src/bridge/BridgeSyncContext.js
index 83f71842..dcba6613 100644
--- a/src/bridge/BridgeSyncContext.js
+++ b/src/bridge/BridgeSyncContext.js
@@ -6,6 +6,7 @@
 import invariant from 'invariant'
 import logger from 'logger'
 import shuffle from 'lodash/shuffle'
+import { timeout } from 'rxjs/operators/timeout'
 import React, { Component } from 'react'
 import priorityQueue from 'async/priorityQueue'
 import { connect } from 'react-redux'
@@ -16,7 +17,12 @@ import { setAccountSyncState } from 'actions/bridgeSync'
 import { bridgeSyncSelector, syncStateLocalSelector } from 'reducers/bridgeSync'
 import type { BridgeSyncState } from 'reducers/bridgeSync'
 import { accountsSelector } from 'reducers/accounts'
-import { SYNC_BOOT_DELAY, SYNC_ALL_INTERVAL, SYNC_MAX_CONCURRENT } from 'config/constants'
+import {
+  SYNC_BOOT_DELAY,
+  SYNC_ALL_INTERVAL,
+  SYNC_MAX_CONCURRENT,
+  SYNC_TIMEOUT,
+} from 'config/constants'
 import { getBridgeForCurrency } from '.'
 
 type BridgeSyncProviderProps = {
@@ -73,19 +79,22 @@ class Provider extends Component<BridgeSyncProviderOwnProps, Sync> {
       this.props.setAccountSyncState(accountId, { pending: true, error: null })
 
       // TODO use Subscription to unsubscribe at relevant time
-      bridge.synchronize(account).subscribe({
-        next: accountUpdater => {
-          this.props.updateAccountWithUpdater(accountId, accountUpdater)
-        },
-        complete: () => {
-          this.props.setAccountSyncState(accountId, { pending: false, error: null })
-          next()
-        },
-        error: error => {
-          this.props.setAccountSyncState(accountId, { pending: false, error })
-          next()
-        },
-      })
+      bridge
+        .synchronize(account)
+        .pipe(timeout(SYNC_TIMEOUT))
+        .subscribe({
+          next: accountUpdater => {
+            this.props.updateAccountWithUpdater(accountId, accountUpdater)
+          },
+          complete: () => {
+            this.props.setAccountSyncState(accountId, { pending: false, error: null })
+            next()
+          },
+          error: error => {
+            this.props.setAccountSyncState(accountId, { pending: false, error })
+            next()
+          },
+        })
     }
 
     const syncQueue = priorityQueue(synchronize, SYNC_MAX_CONCURRENT)
diff --git a/src/bridge/EthereumJSBridge.js b/src/bridge/EthereumJSBridge.js
index 8bf3006e..7bf2854f 100644
--- a/src/bridge/EthereumJSBridge.js
+++ b/src/bridge/EthereumJSBridge.js
@@ -170,7 +170,7 @@ const EthereumBridge: WalletBridge<Transaction> = {
 
     async function stepAddress(
       index,
-      { address, path: freshAddressPath },
+      { address, path: freshAddressPath, publicKey },
       isStandard,
     ): { account?: Account, complete?: boolean } {
       const balance = await api.getAccountBalance(address)
@@ -181,7 +181,7 @@ const EthereumBridge: WalletBridge<Transaction> = {
       if (finished) return { complete: true }
 
       const freshAddress = address
-      const accountId = `ethereumjs:${currency.id}:${address}`
+      const accountId = `ethereumjs:${currency.id}:${address}:${publicKey}`
 
       if (txs.length === 0) {
         // this is an empty account
diff --git a/src/bridge/RippleJSBridge.js b/src/bridge/RippleJSBridge.js
index a8fb4621..cf1233b5 100644
--- a/src/bridge/RippleJSBridge.js
+++ b/src/bridge/RippleJSBridge.js
@@ -256,14 +256,15 @@ const RippleJSBridge: WalletBridge<Transaction> = {
 
         const derivations = getDerivations(currency)
         for (const derivation of derivations) {
+          const legacy = derivation !== derivations[derivations.length - 1]
           for (let index = 0; index < 255; index++) {
             const freshAddressPath = derivation({ currency, x: index, segwit: false })
-            const { address } = await await getAddress
+            const { address, publicKey } = await await getAddress
               .send({ currencyId: currency.id, devicePath: deviceId, path: freshAddressPath })
               .toPromise()
             if (finished) return
 
-            const accountId = `ripplejs:${currency.id}:${address}`
+            const accountId = `ripplejs:${currency.id}:${address}:${publicKey}`
 
             let info
             try {
@@ -280,22 +281,24 @@ const RippleJSBridge: WalletBridge<Transaction> = {
             if (!info) {
               // account does not exist in Ripple server
               // we are generating a new account locally
-              next({
-                id: accountId,
-                xpub: '',
-                name: getNewAccountPlaceholderName(currency, index),
-                freshAddress,
-                freshAddressPath,
-                balance: 0,
-                blockHeight: maxLedgerVersion,
-                index,
-                currency,
-                operations: [],
-                pendingOperations: [],
-                unit: currency.units[0],
-                archived: false,
-                lastSyncDate: new Date(),
-              })
+              if (!legacy) {
+                next({
+                  id: accountId,
+                  xpub: '',
+                  name: getNewAccountPlaceholderName(currency, index),
+                  freshAddress,
+                  freshAddressPath,
+                  balance: 0,
+                  blockHeight: maxLedgerVersion,
+                  index,
+                  currency,
+                  operations: [],
+                  pendingOperations: [],
+                  unit: currency.units[0],
+                  archived: false,
+                  lastSyncDate: new Date(),
+                })
+              }
               break
             }
 
@@ -315,7 +318,7 @@ const RippleJSBridge: WalletBridge<Transaction> = {
             const account: $Exact<Account> = {
               id: accountId,
               xpub: '',
-              name: getAccountPlaceholderName(currency, index),
+              name: getAccountPlaceholderName(currency, index, legacy),
               freshAddress,
               freshAddressPath,
               balance,
diff --git a/src/commands/getCurrentFirmware.js b/src/commands/getCurrentFirmware.js
new file mode 100644
index 00000000..d0dfc329
--- /dev/null
+++ b/src/commands/getCurrentFirmware.js
@@ -0,0 +1,19 @@
+// @flow
+
+import { createCommand, Command } from 'helpers/ipc'
+import { fromPromise } from 'rxjs/observable/fromPromise'
+
+import getCurrentFirmware from 'helpers/devices/getCurrentFirmware'
+
+type Input = {
+  deviceId: string | number,
+  version: string,
+}
+
+type Result = *
+
+const cmd: Command<Input, Result> = createCommand('getCurrentFirmware', data =>
+  fromPromise(getCurrentFirmware(data)),
+)
+
+export default cmd
diff --git a/src/commands/getFirmwareInfo.js b/src/commands/getFirmwareInfo.js
deleted file mode 100644
index dd1bdd42..00000000
--- a/src/commands/getFirmwareInfo.js
+++ /dev/null
@@ -1,19 +0,0 @@
-// @flow
-
-import { createCommand, Command } from 'helpers/ipc'
-import { fromPromise } from 'rxjs/observable/fromPromise'
-
-import getFirmwareInfo from 'helpers/devices/getFirmwareInfo'
-
-type Input = {
-  targetId: string | number,
-  version: string,
-}
-
-type Result = *
-
-const cmd: Command<Input, Result> = createCommand('getFirmwareInfo', data =>
-  fromPromise(getFirmwareInfo(data)),
-)
-
-export default cmd
diff --git a/src/commands/getIsGenuine.js b/src/commands/getIsGenuine.js
index c0b66b8b..c34f4693 100644
--- a/src/commands/getIsGenuine.js
+++ b/src/commands/getIsGenuine.js
@@ -6,11 +6,19 @@ import { fromPromise } from 'rxjs/observable/fromPromise'
 import getIsGenuine from 'helpers/devices/getIsGenuine'
 import { withDevice } from 'helpers/deviceAccess'
 
-type Input = * // FIXME !
+type Input = {
+  devicePath: string,
+  targetId: string | number,
+  version: string,
+}
 type Result = string
 
-const cmd: Command<Input, Result> = createCommand('getIsGenuine', ({ devicePath, targetId }) =>
-  fromPromise(withDevice(devicePath)(transport => getIsGenuine(transport, { targetId }))),
+const cmd: Command<Input, Result> = createCommand(
+  'getIsGenuine',
+  ({ devicePath, targetId, version }) =>
+    fromPromise(
+      withDevice(devicePath)(transport => getIsGenuine(transport, { targetId, version })),
+    ),
 )
 
 export default cmd
diff --git a/src/commands/index.js b/src/commands/index.js
index e32c6639..7f37b4bb 100644
--- a/src/commands/index.js
+++ b/src/commands/index.js
@@ -5,7 +5,7 @@ import type { Command } from 'helpers/ipc'
 
 import getAddress from 'commands/getAddress'
 import getDeviceInfo from 'commands/getDeviceInfo'
-import getFirmwareInfo from 'commands/getFirmwareInfo'
+import getCurrentFirmware from 'commands/getCurrentFirmware'
 import getIsGenuine from 'commands/getIsGenuine'
 import getLatestFirmwareForDevice from 'commands/getLatestFirmwareForDevice'
 import getMemInfo from 'commands/getMemInfo'
@@ -32,7 +32,7 @@ import uninstallApp from 'commands/uninstallApp'
 const all: Array<Command<any, any>> = [
   getAddress,
   getDeviceInfo,
-  getFirmwareInfo,
+  getCurrentFirmware,
   getIsGenuine,
   getLatestFirmwareForDevice,
   getMemInfo,
diff --git a/src/commands/installApp.js b/src/commands/installApp.js
index c4f1df13..88844ae9 100644
--- a/src/commands/installApp.js
+++ b/src/commands/installApp.js
@@ -9,14 +9,17 @@ import installApp from 'helpers/apps/installApp'
 import type { LedgerScriptParams } from 'helpers/common'
 
 type Input = {
-  appParams: LedgerScriptParams,
+  app: LedgerScriptParams,
   devicePath: string,
+  targetId: string | number,
 }
 
 type Result = *
 
-const cmd: Command<Input, Result> = createCommand('installApp', ({ devicePath, ...rest }) =>
-  fromPromise(withDevice(devicePath)(transport => installApp(transport, rest))),
+const cmd: Command<Input, Result> = createCommand(
+  'installApp',
+  ({ devicePath, targetId, ...app }) =>
+    fromPromise(withDevice(devicePath)(transport => installApp(transport, targetId, app))),
 )
 
 export default cmd
diff --git a/src/commands/installMcu.js b/src/commands/installMcu.js
index c16387dc..7e49ea16 100644
--- a/src/commands/installMcu.js
+++ b/src/commands/installMcu.js
@@ -3,24 +3,21 @@
 import { createCommand, Command } from 'helpers/ipc'
 import { fromPromise } from 'rxjs/observable/fromPromise'
 
-// import { withDevice } from 'helpers/deviceAccess'
+import { withDevice } from 'helpers/deviceAccess'
 import installMcu from 'helpers/firmware/installMcu'
 
-// type Input = {
-//   devicePath: string,
-//   firmware: Object,
-// }
+type Input = {
+  devicePath: string,
+  targetId: string | number,
+  version: string,
+}
 
-// type Result = {
-//   targetId: number | string,
-//   version: string,
-//   final: boolean,
-//   mcu: boolean,
-// }
-
-type Input = *
 type Result = *
 
-const cmd: Command<Input, Result> = createCommand('installMcu', () => fromPromise(installMcu()))
+const cmd: Command<Input, Result> = createCommand(
+  'installMcu',
+  ({ devicePath, targetId, version }) =>
+    fromPromise(withDevice(devicePath)(transport => installMcu(transport, { targetId, version }))),
+)
 
 export default cmd
diff --git a/src/commands/installOsuFirmware.js b/src/commands/installOsuFirmware.js
index 416badf0..02767210 100644
--- a/src/commands/installOsuFirmware.js
+++ b/src/commands/installOsuFirmware.js
@@ -6,17 +6,22 @@ import { fromPromise } from 'rxjs/observable/fromPromise'
 import { withDevice } from 'helpers/deviceAccess'
 import installOsuFirmware from 'helpers/firmware/installOsuFirmware'
 
+import type { LedgerScriptParams } from 'helpers/common'
+
 type Input = {
   devicePath: string,
-  firmware: Object,
+  targetId: string | number,
+  firmware: LedgerScriptParams,
 }
 
 type Result = *
 
 const cmd: Command<Input, Result> = createCommand(
   'installOsuFirmware',
-  ({ devicePath, firmware }) =>
-    fromPromise(withDevice(devicePath)(transport => installOsuFirmware(transport, firmware))),
+  ({ devicePath, firmware, targetId }) =>
+    fromPromise(
+      withDevice(devicePath)(transport => installOsuFirmware(transport, targetId, firmware)),
+    ),
 )
 
 export default cmd
diff --git a/src/commands/listApps.js b/src/commands/listApps.js
index b600aef4..e4d5a153 100644
--- a/src/commands/listApps.js
+++ b/src/commands/listApps.js
@@ -7,12 +7,13 @@ import listApps from 'helpers/apps/listApps'
 
 type Input = {
   targetId: string | number,
+  version: string,
 }
 
 type Result = *
 
-const cmd: Command<Input, Result> = createCommand('listApps', ({ targetId }) =>
-  fromPromise(listApps(targetId)),
+const cmd: Command<Input, Result> = createCommand('listApps', ({ targetId, version }) =>
+  fromPromise(listApps(targetId, version)),
 )
 
 export default cmd
diff --git a/src/commands/uninstallApp.js b/src/commands/uninstallApp.js
index e8e3b3f7..573439fa 100644
--- a/src/commands/uninstallApp.js
+++ b/src/commands/uninstallApp.js
@@ -9,14 +9,17 @@ import uninstallApp from 'helpers/apps/uninstallApp'
 import type { LedgerScriptParams } from 'helpers/common'
 
 type Input = {
-  appParams: LedgerScriptParams,
+  app: LedgerScriptParams,
   devicePath: string,
+  targetId: string | number,
 }
 
 type Result = *
 
-const cmd: Command<Input, Result> = createCommand('uninstallApp', ({ devicePath, ...rest }) =>
-  fromPromise(withDevice(devicePath)(transport => uninstallApp(transport, rest))),
+const cmd: Command<Input, Result> = createCommand(
+  'uninstallApp',
+  ({ devicePath, targetId, ...rest }) =>
+    fromPromise(withDevice(devicePath)(transport => uninstallApp(transport, targetId, rest))),
 )
 
 export default cmd
diff --git a/src/components/AccountPage/index.js b/src/components/AccountPage/index.js
index 5aadb530..464fb3a4 100644
--- a/src/components/AccountPage/index.js
+++ b/src/components/AccountPage/index.js
@@ -129,11 +129,9 @@ class AccountPage extends PureComponent<Props> {
             )}
             <Tooltip render={() => t('app:account.settings.title')}>
               <ButtonSettings onClick={() => openModal(MODAL_SETTINGS_ACCOUNT, { account })}>
-                <Button small outlineGrey>
-                  <Box justifyContent="center">
-                    <IconAccountSettings size={16} />
-                  </Box>
-                </Button>
+                <Box justifyContent="center">
+                  <IconAccountSettings size={16} />
+                </Box>
               </ButtonSettings>
             </Tooltip>
           </Box>
@@ -148,10 +146,14 @@ class AccountPage extends PureComponent<Props> {
                 counterValue={counterValue}
                 daysCount={daysCount}
                 selectedTimeRange={selectedTimeRange}
-                renderHeader={({ totalBalance, sinceBalance, refBalance }) => (
+                renderHeader={({ isAvailable, totalBalance, sinceBalance, refBalance }) => (
                   <Box flow={4} mb={2}>
                     <Box horizontal>
-                      <BalanceTotal totalBalance={account.balance} unit={account.unit}>
+                      <BalanceTotal
+                        isAvailable={isAvailable}
+                        totalBalance={account.balance}
+                        unit={account.unit}
+                      >
                         <FormattedVal
                           animateTicker
                           alwaysShowSign={false}
@@ -171,6 +173,7 @@ class AccountPage extends PureComponent<Props> {
                     </Box>
                     <Box horizontal justifyContent="center" flow={7}>
                       <BalanceSincePercent
+                        isAvailable={isAvailable}
                         t={t}
                         alignItems="center"
                         totalBalance={totalBalance}
@@ -179,6 +182,7 @@ class AccountPage extends PureComponent<Props> {
                         since={selectedTimeRange}
                       />
                       <BalanceSinceDiff
+                        isAvailable={isAvailable}
                         t={t}
                         counterValue={counterValue}
                         alignItems="center"
diff --git a/src/components/AppError.js b/src/components/AppError.js
new file mode 100644
index 00000000..7ae0ca90
--- /dev/null
+++ b/src/components/AppError.js
@@ -0,0 +1,23 @@
+// @flow
+
+import React from 'react'
+import { ThemeProvider } from 'styled-components'
+import { I18nextProvider } from 'react-i18next'
+import theme from 'styles/theme'
+import i18n from 'renderer/i18n/electron'
+import TriggerAppReady from './TriggerAppReady'
+import RenderError from './RenderError'
+
+// Like App except it just render an error
+
+const App = ({ language, error }: { error: Error, language: string }) => (
+  <I18nextProvider i18n={i18n} initialLanguage={language}>
+    <ThemeProvider theme={theme}>
+      <RenderError disableExport error={error}>
+        <TriggerAppReady />
+      </RenderError>
+    </ThemeProvider>
+  </I18nextProvider>
+)
+
+export default App
diff --git a/src/components/BalanceSummary/BalanceInfos.js b/src/components/BalanceSummary/BalanceInfos.js
index fec8e7b6..b2f50a85 100644
--- a/src/components/BalanceSummary/BalanceInfos.js
+++ b/src/components/BalanceSummary/BalanceInfos.js
@@ -9,6 +9,7 @@ import type { T } from 'types/common'
 import Box from 'components/base/Box'
 import FormattedVal from 'components/base/FormattedVal'
 import DeltaChange from '../DeltaChange'
+import { PlaceholderLine } from '../Placeholder'
 
 const Sub = styled(Box).attrs({
   ff: 'Open Sans',
@@ -22,12 +23,14 @@ type BalanceSinceProps = {
   totalBalance: number,
   sinceBalance: number,
   refBalance: number,
+  isAvailable: boolean,
   t: T,
 }
 
 type BalanceTotalProps = {
   children?: any,
   unit: Unit,
+  isAvailable: boolean,
   totalBalance: number,
 }
 
@@ -36,53 +39,73 @@ type Props = {
 } & BalanceSinceProps
 
 export function BalanceSincePercent(props: BalanceSinceProps) {
-  const { t, totalBalance, sinceBalance, refBalance, since, ...otherProps } = props
+  const { t, totalBalance, sinceBalance, refBalance, since, isAvailable, ...otherProps } = props
   return (
     <Box {...otherProps}>
-      <DeltaChange
-        from={refBalance}
-        to={totalBalance}
-        color="dark"
-        animateTicker
-        fontSize={7}
-        withIcon
-      />
-      <Sub>{t(`app:time.since.${since}`)}</Sub>
+      {!isAvailable ? (
+        <PlaceholderLine width={100} />
+      ) : (
+        <DeltaChange
+          from={refBalance}
+          to={totalBalance}
+          color="dark"
+          animateTicker
+          fontSize={7}
+          withIcon
+        />
+      )}
+      {!isAvailable ? (
+        <PlaceholderLine dark width={60} />
+      ) : (
+        <Sub>{t(`app:time.since.${since}`)}</Sub>
+      )}
     </Box>
   )
 }
 
 export function BalanceSinceDiff(props: Props) {
-  const { t, totalBalance, sinceBalance, since, counterValue, ...otherProps } = props
+  const { t, totalBalance, sinceBalance, since, counterValue, isAvailable, ...otherProps } = props
   return (
     <Box {...otherProps}>
-      <FormattedVal
-        color="dark"
-        animateTicker
-        unit={counterValue.units[0]}
-        fontSize={7}
-        showCode
-        val={totalBalance - sinceBalance}
-        withIcon
-      />
-      <Sub>{t(`app:time.since.${since}`)}</Sub>
+      {!isAvailable ? (
+        <PlaceholderLine width={100} />
+      ) : (
+        <FormattedVal
+          color="dark"
+          animateTicker
+          unit={counterValue.units[0]}
+          fontSize={7}
+          showCode
+          val={totalBalance - sinceBalance}
+          withIcon
+        />
+      )}
+      {!isAvailable ? (
+        <PlaceholderLine dark width={60} />
+      ) : (
+        <Sub>{t(`app:time.since.${since}`)}</Sub>
+      )}
     </Box>
   )
 }
 
 export function BalanceTotal(props: BalanceTotalProps) {
-  const { unit, totalBalance, children } = props
+  const { unit, totalBalance, isAvailable, children } = props
   return (
     <Box grow {...props}>
-      <FormattedVal
-        animateTicker
-        color="dark"
-        unit={unit}
-        fontSize={8}
-        showCode
-        val={totalBalance}
-      />
-      {children}
+      {!isAvailable ? (
+        <PlaceholderLine width={150} />
+      ) : (
+        <FormattedVal
+          animateTicker
+          color="dark"
+          unit={unit}
+          fontSize={8}
+          showCode
+          val={totalBalance}
+        />
+      )}
+      {!isAvailable ? <PlaceholderLine dark width={50} /> : children}
     </Box>
   )
 }
@@ -93,16 +116,21 @@ BalanceTotal.defaultProps = {
 }
 
 function BalanceInfos(props: Props) {
-  const { t, totalBalance, since, sinceBalance, refBalance, counterValue } = props
+  const { t, totalBalance, since, sinceBalance, refBalance, isAvailable, counterValue } = props
   return (
     <Box horizontal alignItems="center" flow={7}>
-      <BalanceTotal unit={counterValue.units[0]} totalBalance={totalBalance}>
+      <BalanceTotal
+        unit={counterValue.units[0]}
+        isAvailable={isAvailable}
+        totalBalance={totalBalance}
+      >
         <Sub>{t('app:dashboard.totalBalance')}</Sub>
       </BalanceTotal>
       <BalanceSincePercent
         alignItems="flex-end"
         totalBalance={totalBalance}
         sinceBalance={sinceBalance}
+        isAvailable={isAvailable}
         refBalance={refBalance}
         since={since}
         t={t}
@@ -110,6 +138,7 @@ function BalanceInfos(props: Props) {
       <BalanceSinceDiff
         counterValue={counterValue}
         alignItems="flex-end"
+        isAvailable={isAvailable}
         totalBalance={totalBalance}
         sinceBalance={sinceBalance}
         refBalance={refBalance}
diff --git a/src/components/BalanceSummary/index.js b/src/components/BalanceSummary/index.js
index 9c04ec94..4a84fd9e 100644
--- a/src/components/BalanceSummary/index.js
+++ b/src/components/BalanceSummary/index.js
@@ -21,6 +21,7 @@ type Props = {
     totalBalance: number,
     sinceBalance: number,
     refBalance: number,
+    isAvailable: boolean,
   }) => *,
 }
 
@@ -37,54 +38,67 @@ const BalanceSummary = ({
   return (
     <Card p={0} py={5}>
       <CalculateBalance accounts={accounts} daysCount={daysCount}>
-        {({ isAvailable, balanceHistory, balanceStart, balanceEnd }) =>
-          !isAvailable ? null : (
-            <Fragment>
-              {renderHeader ? (
-                <Box px={6}>
-                  {renderHeader({
-                    selectedTimeRange,
-                    // FIXME refactor these
-                    totalBalance: balanceEnd,
-                    sinceBalance: balanceStart,
-                    refBalance: balanceStart,
-                  })}
-                </Box>
-              ) : null}
-              <Box ff="Open Sans" fontSize={4} color="graphite" pt={6}>
-                <Chart
-                  id={chartId}
-                  unit={account ? account.unit : null}
-                  color={chartColor}
-                  data={balanceHistory}
-                  height={200}
-                  currency={counterValue}
-                  tickXScale={selectedTimeRange}
-                  renderTickY={val => formatShort(counterValue.units[0], val)}
-                  renderTooltip={
-                    isAvailable && !account
-                      ? d => (
-                          <Fragment>
-                            <FormattedVal
-                              alwaysShowSign={false}
-                              fontSize={5}
-                              color="dark"
-                              showCode
-                              unit={counterValue.units[0]}
-                              val={d.value}
-                            />
-                            <Box ff="Open Sans|Regular" color="grey" fontSize={3} mt={2}>
-                              {d.date.toISOString().substr(0, 10)}
-                            </Box>
-                          </Fragment>
-                        )
-                      : undefined
-                  }
-                />
+        {({ isAvailable, balanceHistory, balanceStart, balanceEnd }) => (
+          <Fragment>
+            {renderHeader ? (
+              <Box px={6}>
+                {renderHeader({
+                  isAvailable,
+                  selectedTimeRange,
+                  // FIXME refactor these
+                  totalBalance: balanceEnd,
+                  sinceBalance: balanceStart,
+                  refBalance: balanceStart,
+                })}
               </Box>
-            </Fragment>
-          )
-        }
+            ) : null}
+            <Box ff="Open Sans" fontSize={4} color="graphite" pt={6}>
+              <Chart
+                id={chartId}
+                unit={account ? account.unit : null}
+                color={!isAvailable ? '#eee' : chartColor}
+                data={
+                  isAvailable
+                    ? balanceHistory
+                    : balanceHistory.map(i => ({
+                        ...i,
+                        value:
+                          10000 *
+                          (1 +
+                          0.1 * Math.sin(i.date * Math.cos(i.date)) + // random-ish
+                            0.5 * Math.cos(i.date / 2000000000 + Math.sin(i.date / 1000000000))), // general curve trend
+                      }))
+                }
+                height={200}
+                currency={counterValue}
+                tickXScale={selectedTimeRange}
+                renderTickY={
+                  isAvailable ? val => formatShort(counterValue.units[0], val) : () => ''
+                }
+                isInteractive={isAvailable}
+                renderTooltip={
+                  isAvailable && !account
+                    ? d => (
+                        <Fragment>
+                          <FormattedVal
+                            alwaysShowSign={false}
+                            fontSize={5}
+                            color="dark"
+                            showCode
+                            unit={counterValue.units[0]}
+                            val={d.value}
+                          />
+                          <Box ff="Open Sans|Regular" color="grey" fontSize={3} mt={2}>
+                            {d.date.toISOString().substr(0, 10)}
+                          </Box>
+                        </Fragment>
+                      )
+                    : undefined
+                }
+              />
+            </Box>
+          </Fragment>
+        )}
       </CalculateBalance>
     </Card>
   )
diff --git a/src/components/DashboardPage/index.js b/src/components/DashboardPage/index.js
index 4267a429..c92116ce 100644
--- a/src/components/DashboardPage/index.js
+++ b/src/components/DashboardPage/index.js
@@ -120,10 +120,17 @@ class DashboardPage extends PureComponent<Props> {
                   accounts={accounts}
                   selectedTimeRange={selectedTimeRange}
                   daysCount={daysCount}
-                  renderHeader={({ totalBalance, selectedTimeRange, sinceBalance, refBalance }) => (
+                  renderHeader={({
+                    isAvailable,
+                    totalBalance,
+                    selectedTimeRange,
+                    sinceBalance,
+                    refBalance,
+                  }) => (
                     <BalanceInfos
                       t={t}
                       counterValue={counterValue}
+                      isAvailable={isAvailable}
                       totalBalance={totalBalance}
                       since={selectedTimeRange}
                       sinceBalance={sinceBalance}
diff --git a/src/components/DeviceBusyIndicator.js b/src/components/DeviceBusyIndicator.js
new file mode 100644
index 00000000..47f45b99
--- /dev/null
+++ b/src/components/DeviceBusyIndicator.js
@@ -0,0 +1,38 @@
+import React, { PureComponent } from 'react'
+import styled from 'styled-components'
+
+const Indicator = styled.div`
+  opacity: ${p => (p.busy ? 0.1 : 0)};
+  width: 6px;
+  height: 6px;
+  border-radius: 3px;
+  background-color: black;
+  position: fixed;
+  top: 4px;
+  right: 4px;
+  z-index: 999;
+`
+
+// NB this is done like this to be extremely performant. we don't want redux for this..
+const perPaths = {}
+const instances = []
+export const onSetDeviceBusy = (path, busy) => {
+  perPaths[path] = busy
+  instances.forEach(i => i.forceUpdate())
+}
+
+class DeviceBusyIndicator extends PureComponent<{}> {
+  componentDidMount() {
+    instances.push(this)
+  }
+  componentWillUnmount() {
+    const i = instances.indexOf(this)
+    instances.splice(i, 1)
+  }
+  render() {
+    const busy = Object.values(perPaths).reduce((busy, b) => busy || b, false)
+    return <Indicator busy={busy} />
+  }
+}
+
+export default DeviceBusyIndicator
diff --git a/src/components/LibcoreBusyIndicator.js b/src/components/LibcoreBusyIndicator.js
new file mode 100644
index 00000000..2a13ca9a
--- /dev/null
+++ b/src/components/LibcoreBusyIndicator.js
@@ -0,0 +1,37 @@
+import React, { PureComponent } from 'react'
+import styled from 'styled-components'
+
+const Indicator = styled.div`
+  opacity: ${p => (p.busy ? 0.1 : 0)};
+  width: 6px;
+  height: 6px;
+  border-radius: 3px;
+  background-color: black;
+  position: fixed;
+  bottom: 4px;
+  right: 4px;
+  z-index: 999;
+`
+
+// NB this is done like this to be extremely performant. we don't want redux for this..
+let busy = false
+const instances = []
+export const onSetLibcoreBusy = b => {
+  busy = b
+  instances.forEach(i => i.forceUpdate())
+}
+
+class LibcoreBusyIndicator extends PureComponent<{}> {
+  componentDidMount() {
+    instances.push(this)
+  }
+  componentWillUnmount() {
+    const i = instances.indexOf(this)
+    instances.splice(i, 1)
+  }
+  render() {
+    return <Indicator busy={busy} />
+  }
+}
+
+export default LibcoreBusyIndicator
diff --git a/src/components/ManagerPage/AppSearchBar.js b/src/components/ManagerPage/AppSearchBar.js
index 4dcdd81b..e728a91a 100644
--- a/src/components/ManagerPage/AppSearchBar.js
+++ b/src/components/ManagerPage/AppSearchBar.js
@@ -4,6 +4,8 @@ import styled from 'styled-components'
 import { color, fontSize, space } from 'styled-system'
 import fontFamily from 'styles/styled/fontFamily'
 
+import type { LedgerScriptParams } from 'helpers/common'
+
 import { ff } from 'styles/helpers'
 
 import Box from 'components/base/Box'
@@ -12,20 +14,9 @@ import Search from 'components/base/Search'
 import SearchIcon from 'icons/Search'
 import CrossIcon from 'icons/Cross'
 
-type LedgerApp = {
-  name: string,
-  version: string,
-  icon: string,
-  app: Object,
-  bolos_version: {
-    min: number,
-    max: number,
-  },
-}
-
 type Props = {
-  list: Array<LedgerApp>,
-  children: (list: Array<LedgerApp>) => React$Node,
+  list: Array<LedgerScriptParams>,
+  children: (list: Array<LedgerScriptParams>) => React$Node,
 }
 
 type State = {
diff --git a/src/components/ManagerPage/AppsList.js b/src/components/ManagerPage/AppsList.js
index 7e07312b..ee87e6a6 100644
--- a/src/components/ManagerPage/AppsList.js
+++ b/src/components/ManagerPage/AppsList.js
@@ -6,6 +6,7 @@ import styled from 'styled-components'
 import { translate } from 'react-i18next'
 
 import type { Device, T } from 'types/common'
+import type { LedgerScriptParams } from 'helpers/common'
 
 import listApps from 'commands/listApps'
 import installApp from 'commands/installApp'
@@ -43,27 +44,17 @@ const ICONS_FALLBACK = {
 type Status = 'loading' | 'idle' | 'busy' | 'success' | 'error'
 type Mode = 'home' | 'installing' | 'uninstalling'
 
-type LedgerApp = {
-  name: string,
-  version: string,
-  icon: string,
-  app: Object,
-  bolos_version: {
-    min: number,
-    max: number,
-  },
-}
-
 type Props = {
   device: Device,
   targetId: string | number,
   t: T,
+  version: string,
 }
 
 type State = {
   status: Status,
   error: string | null,
-  appsList: LedgerApp[],
+  appsList: LedgerScriptParams[] | Array<*>,
   app: string,
   mode: Mode,
 }
@@ -89,8 +80,8 @@ class AppsList extends PureComponent<Props, State> {
 
   async fetchAppList() {
     try {
-      const { targetId } = this.props
-      const appsList = CACHED_APPS || (await listApps.send({ targetId }).toPromise())
+      const { targetId, version } = this.props
+      const appsList = CACHED_APPS || (await listApps.send({ targetId, version }).toPromise())
       CACHED_APPS = appsList
       if (!this._unmounted) {
         this.setState({ appsList, status: 'idle' })
@@ -100,14 +91,14 @@ class AppsList extends PureComponent<Props, State> {
     }
   }
 
-  handleInstallApp = (args: { app: any, name: string }) => async () => {
-    const { app: appParams, name } = args
-    this.setState({ status: 'busy', app: name, mode: 'installing' })
+  handleInstallApp = (app: LedgerScriptParams) => async () => {
+    this.setState({ status: 'busy', app: app.name, mode: 'installing' })
     try {
       const {
         device: { path: devicePath },
+        targetId,
       } = this.props
-      const data = { appParams, devicePath }
+      const data = { app, devicePath, targetId }
       await installApp.send(data).toPromise()
       this.setState({ status: 'success', app: '' })
     } catch (err) {
@@ -115,14 +106,14 @@ class AppsList extends PureComponent<Props, State> {
     }
   }
 
-  handleUninstallApp = (args: { app: any, name: string }) => async () => {
-    const { app: appParams, name } = args
-    this.setState({ status: 'busy', app: name, mode: 'uninstalling' })
+  handleUninstallApp = (app: LedgerScriptParams) => async () => {
+    this.setState({ status: 'busy', app: app.name, mode: 'uninstalling' })
     try {
       const {
         device: { path: devicePath },
+        targetId,
       } = this.props
-      const data = { appParams, devicePath }
+      const data = { app, devicePath, targetId }
       await uninstallApp.send(data).toPromise()
       this.setState({ status: 'success', app: '' })
     } catch (err) {
@@ -184,15 +175,15 @@ class AppsList extends PureComponent<Props, State> {
   }
 
   renderList() {
-    const { appsList } = this.state
-    return appsList.length > 0 ? (
+    const { appsList, status } = this.state
+    return status === 'idle' ? (
       <Box>
         <AppSearchBar list={appsList}>
           {items => (
             <List>
               {items.map(c => (
                 <ManagerApp
-                  key={`${c.name}_${c.version}_${c.bolos_version.min}`}
+                  key={`${c.name}_${c.version}`}
                   name={c.name}
                   version={`Version ${c.version}`}
                   icon={ICONS_FALLBACK[c.icon] || c.icon}
diff --git a/src/components/ManagerPage/Dashboard.js b/src/components/ManagerPage/Dashboard.js
index eb5bcbce..981a48d3 100644
--- a/src/components/ManagerPage/Dashboard.js
+++ b/src/components/ManagerPage/Dashboard.js
@@ -43,7 +43,7 @@ const Dashboard = ({ device, deviceInfo, t }: Props) => (
       />
     </Box>
     <Box mt={5}>
-      <AppsList device={device} targetId={deviceInfo.targetId} />
+      <AppsList device={device} targetId={deviceInfo.targetId} version={deviceInfo.version} />
     </Box>
   </Box>
 )
diff --git a/src/components/ManagerPage/FirmwareUpdate.js b/src/components/ManagerPage/FirmwareUpdate.js
index 61954fab..a9ab1e2f 100644
--- a/src/components/ManagerPage/FirmwareUpdate.js
+++ b/src/components/ManagerPage/FirmwareUpdate.js
@@ -10,6 +10,8 @@ import logger from 'logger'
 
 import type { Device, T } from 'types/common'
 
+import type { LedgerScriptParams } from 'helpers/common'
+
 import getLatestFirmwareForDevice from 'commands/getLatestFirmwareForDevice'
 import installOsuFirmware from 'commands/installOsuFirmware'
 
@@ -23,11 +25,6 @@ import UpdateFirmwareButton from './UpdateFirmwareButton'
 
 let CACHED_LATEST_FIRMWARE = null
 
-type FirmwareInfos = {
-  name: string,
-  notes: string,
-}
-
 type DeviceInfos = {
   targetId: number | string,
   version: string,
@@ -40,7 +37,7 @@ type Props = {
 }
 
 type State = {
-  latestFirmware: ?FirmwareInfos,
+  latestFirmware: ?LedgerScriptParams,
 }
 
 class FirmwareUpdate extends PureComponent<Props, State> {
@@ -84,12 +81,13 @@ class FirmwareUpdate extends PureComponent<Props, State> {
   installFirmware = async () => {
     try {
       const { latestFirmware } = this.state
+      const { infos } = this.props
       invariant(latestFirmware, 'did not find a new firmware or firmware is not set')
       const {
         device: { path: devicePath },
       } = this.props
       const { success } = await installOsuFirmware
-        .send({ devicePath, firmware: latestFirmware })
+        .send({ devicePath, firmware: latestFirmware, targetId: infos.targetId })
         .toPromise()
       if (success) {
         this.fetchLatestFirmware()
@@ -119,7 +117,9 @@ class FirmwareUpdate extends PureComponent<Props, State> {
               </Box>
             </Box>
             <Text ff="Open Sans|SemiBold" fontSize={2}>
-              {t('app:manager.firmware.installed', { version: infos.version })}
+              {t('app:manager.firmware.installed', {
+                version: infos.version,
+              })}
             </Text>
           </Box>
           <UpdateFirmwareButton firmware={latestFirmware} installFirmware={this.installFirmware} />
diff --git a/src/components/ManagerPage/FlashMcu.js b/src/components/ManagerPage/FlashMcu.js
index e69de29b..5edeacd4 100644
--- a/src/components/ManagerPage/FlashMcu.js
+++ b/src/components/ManagerPage/FlashMcu.js
@@ -0,0 +1,55 @@
+// @flow
+import React, { PureComponent } from 'react'
+
+import type { Device } from 'types/common'
+import installMcu from 'commands/installMcu'
+
+type DeviceInfo = {
+  targetId: number | string,
+  version: string,
+  final: boolean,
+  mcu: boolean,
+}
+
+type Props = {
+  device: Device,
+  deviceInfo: DeviceInfo,
+}
+
+type State = {
+  flashing: boolean,
+}
+
+class FlashMcu extends PureComponent<Props, State> {
+  state = {
+    flashing: false,
+  }
+
+  flashMCU = async () => {
+    const { device, deviceInfo } = this.props
+    const { flashing } = this.state
+
+    if (!flashing) {
+      this.setState({ flashing: true })
+      await installMcu
+        .send({
+          devicePath: device.path,
+          targetId: deviceInfo.targetId,
+          version: deviceInfo.version,
+        })
+        .toPromise()
+      this.setState({ flashing: false })
+    }
+  }
+
+  render() {
+    return (
+      <div>
+        <h1>Flashing MCU</h1>
+        <button onClick={this.flashMCU}>flash</button>
+      </div>
+    )
+  }
+}
+
+export default FlashMcu
diff --git a/src/components/ManagerPage/UpdateFirmwareButton.js b/src/components/ManagerPage/UpdateFirmwareButton.js
index 5feea0e3..f5b4c562 100644
--- a/src/components/ManagerPage/UpdateFirmwareButton.js
+++ b/src/components/ManagerPage/UpdateFirmwareButton.js
@@ -18,11 +18,14 @@ type Props = {
   installFirmware: () => void,
 }
 
+const getCleanVersion = (input: string): string =>
+  input.endsWith('-osu') ? input.replace('-osu', '') : input
+
 const UpdateFirmwareButton = ({ t, firmware, installFirmware }: Props) =>
   firmware ? (
     <Fragment>
       <Text ff="Open Sans|Regular" fontSize={4} style={{ marginLeft: 'auto', marginRight: 15 }}>
-        {t('app:manager.firmware.latest', { version: firmware.name })}
+        {t('app:manager.firmware.latest', { version: getCleanVersion(firmware.name) })}
       </Text>
       <Button primary onClick={installFirmware}>
         {t('app:manager.firmware.update')}
diff --git a/src/components/ManagerPage/index.js b/src/components/ManagerPage/index.js
index 6b1b48a7..11209e93 100644
--- a/src/components/ManagerPage/index.js
+++ b/src/components/ManagerPage/index.js
@@ -9,6 +9,7 @@ import type { Device } from 'types/common'
 import Workflow from 'components/Workflow'
 import WorkflowWithIcon from 'components/Workflow/WorkflowWithIcon'
 import Dashboard from './Dashboard'
+import FlashMcu from './FlashMcu'
 
 type DeviceInfo = {
   targetId: number | string,
@@ -25,11 +26,11 @@ type Error = {
 function ManagerPage(): Node {
   return (
     <Workflow
-      renderFinalUpdate={(deviceInfo: DeviceInfo) => (
+      renderFinalUpdate={(device: Device, deviceInfo: DeviceInfo) => (
         <p>UPDATE FINAL FIRMARE (TEMPLATE + ACTION WIP) {deviceInfo.final}</p>
       )}
-      renderMcuUpdate={(deviceInfo: DeviceInfo) => (
-        <p>FLASH MCU (TEMPLATE + ACTION WIP) {deviceInfo.mcu}</p>
+      renderMcuUpdate={(device: Device, deviceInfo: DeviceInfo) => (
+        <FlashMcu device={device} deviceInfo={deviceInfo} />
       )}
       renderDashboard={(device: Device, deviceInfo: DeviceInfo) => (
         <Dashboard device={device} deviceInfo={deviceInfo} />
diff --git a/src/components/Onboarding/OnboardingBreadcrumb.js b/src/components/Onboarding/OnboardingBreadcrumb.js
index e3137645..93053a37 100644
--- a/src/components/Onboarding/OnboardingBreadcrumb.js
+++ b/src/components/Onboarding/OnboardingBreadcrumb.js
@@ -3,6 +3,7 @@
 import React from 'react'
 import { connect } from 'react-redux'
 import findIndex from 'lodash/findIndex'
+import { translate } from 'react-i18next'
 
 import type { OnboardingState } from 'reducers/onboarding'
 
@@ -14,15 +15,16 @@ const mapStateToProps = state => ({
 
 type Props = {
   onboarding: OnboardingState,
+  t: *,
 }
 
 function OnboardingBreadcrumb(props: Props) {
-  const { onboarding } = props
+  const { onboarding, t } = props
   const { stepName, genuine } = onboarding
 
   const filteredSteps = onboarding.steps
     .filter(step => !step.external)
-    .map(step => ({ ...step, label: step.label })) // TODO: translate
+    .map(step => ({ ...step, label: t(step.label) })) // TODO: translate
 
   const stepIndex = findIndex(filteredSteps, s => s.name === stepName)
   const genuineStepIndex = findIndex(filteredSteps, s => s.name === 'genuineCheck')
@@ -36,4 +38,4 @@ function OnboardingBreadcrumb(props: Props) {
   )
 }
 
-export default connect(mapStateToProps)(OnboardingBreadcrumb)
+export default translate()(connect(mapStateToProps)(OnboardingBreadcrumb))
diff --git a/src/components/Onboarding/steps/GenuineCheck.js b/src/components/Onboarding/steps/GenuineCheck.js
index b5a38185..7b366498 100644
--- a/src/components/Onboarding/steps/GenuineCheck.js
+++ b/src/components/Onboarding/steps/GenuineCheck.js
@@ -82,10 +82,12 @@ class GenuineCheck extends PureComponent<StepProps, State> {
     if (!item.pass) {
       this.setState(INITIAL_STATE)
       this.props.updateGenuineCheck({
-        isGenuineFail: true,
-        recoveryStepPass: false,
+        displayErrorScreen: true,
         pinStepPass: false,
+        recoveryStepPass: false,
+        isGenuineFail: false,
         isDeviceGenuine: false,
+        genuineCheckUnavailable: null,
       })
     }
   }
@@ -116,6 +118,7 @@ class GenuineCheck extends PureComponent<StepProps, State> {
         isGenuineFail: true,
         isDeviceGenuine: false,
         genuineCheckUnavailable: null,
+        displayErrorScreen: true,
       })
     })
   }
@@ -125,12 +128,13 @@ class GenuineCheck extends PureComponent<StepProps, State> {
       this.props.updateGenuineCheck({
         isDeviceGenuine: false,
         genuineCheckUnavailable: error,
+        displayErrorScreen: false,
       })
     })
   }
 
   redoGenuineCheck = () => {
-    this.props.updateGenuineCheck({ isGenuineFail: false })
+    this.props.updateGenuineCheck({ displayErrorScreen: false })
   }
 
   contactSupport = () => {
@@ -153,7 +157,7 @@ class GenuineCheck extends PureComponent<StepProps, State> {
     const { genuine } = onboarding
     const { cachedPinStepButton, cachedRecoveryStepButton, isGenuineCheckModalOpened } = this.state
 
-    if (genuine.isGenuineFail) {
+    if (genuine.displayErrorScreen) {
       return this.renderGenuineFail()
     }
 
@@ -225,17 +229,22 @@ class GenuineCheck extends PureComponent<StepProps, State> {
                       </GenuineSuccessText>
                     </Box>
                   ) : genuine.genuineCheckUnavailable ? (
-                    <Box horizontal align="center" flow={1} color={colors.alertRed}>
-                      <IconCross size={16} />
-                      <Box ff="Open Sans|Regular" fontSize={4} style={{ maxWidth: '200px' }}>
-                        <TranslatedError error={genuine.genuineCheckUnavailable} />
-                        <FakeLink
-                          color="alertRed"
-                          underline
-                          onClick={this.handleOpenGenuineCheckModal}
-                        >
-                          {t('app:common.retry')}
-                        </FakeLink>
+                    <Box align="center" flow={1} color={colors.alertRed}>
+                      <FakeLink
+                        ff="Open Sans|Regular"
+                        fontSize={4}
+                        underline
+                        onClick={this.handleOpenGenuineCheckModal}
+                      >
+                        {t('app:common.retry')}
+                      </FakeLink>
+                      <Box horizontal justify="center">
+                        <Box justifyContent="center">
+                          <IconCross size={12} />
+                        </Box>
+                        <Box ff="Open Sans|Regular" fontSize={2} ml={1}>
+                          <TranslatedError error={genuine.genuineCheckUnavailable} />
+                        </Box>
                       </Box>
                     </Box>
                   ) : (
@@ -252,15 +261,32 @@ class GenuineCheck extends PureComponent<StepProps, State> {
             </CardWrapper>
           </Box>
         </StepContainerInner>
-        <OnboardingFooter
-          horizontal
-          align="center"
-          flow={2}
-          t={t}
-          nextStep={nextStep}
-          prevStep={prevStep}
-          isContinueDisabled={!genuine.isDeviceGenuine}
-        />
+        {genuine.genuineCheckUnavailable ? (
+          <OnboardingFooterWrapper>
+            <Button padded outlineGrey onClick={() => prevStep()}>
+              {t('app:common.back')}
+            </Button>
+            <Box horizontal ml="auto">
+              <Button padded disabled={false} onClick={() => nextStep()} mx={2}>
+                {t('app:common.skipThisStep')}
+              </Button>
+              <Button padded onClick={nextStep} disabled primary>
+                {t('app:common.continue')}
+              </Button>
+            </Box>
+          </OnboardingFooterWrapper>
+        ) : (
+          <OnboardingFooter
+            horizontal
+            align="center"
+            flow={2}
+            t={t}
+            nextStep={nextStep}
+            prevStep={prevStep}
+            isContinueDisabled={!genuine.isDeviceGenuine}
+          />
+        )}
+
         <GenuineCheckModal
           isOpened={isGenuineCheckModalOpened}
           onClose={this.handleCloseGenuineCheckModal}
diff --git a/src/components/Onboarding/steps/WriteSeed/WriteSeedBlue.js b/src/components/Onboarding/steps/WriteSeed/WriteSeedBlue.js
index 7f7f8d48..4e8d5e35 100644
--- a/src/components/Onboarding/steps/WriteSeed/WriteSeedBlue.js
+++ b/src/components/Onboarding/steps/WriteSeed/WriteSeedBlue.js
@@ -69,8 +69,8 @@ class WriteSeedBlue extends PureComponent<Props, *> {
     return (
       <Fragment>
         <Box mb={3}>
-          <Title>{t('onboarding:writeSeed.blue.title')}</Title>
-          <Description>{t('onboarding:writeSeed.blue.desc')}</Description>
+          <Title>{t('onboarding:writeSeed.title')}</Title>
+          <Description>{t('onboarding:writeSeed.desc')}</Description>
         </Box>
         <Box align="center">
           <Inner style={{ width: 760 }}>
diff --git a/src/components/Onboarding/steps/WriteSeed/WriteSeedNano.js b/src/components/Onboarding/steps/WriteSeed/WriteSeedNano.js
index d1e76f4d..2a412a31 100644
--- a/src/components/Onboarding/steps/WriteSeed/WriteSeedNano.js
+++ b/src/components/Onboarding/steps/WriteSeed/WriteSeedNano.js
@@ -69,8 +69,8 @@ class WriteSeedNano extends PureComponent<Props, *> {
     return (
       <Fragment>
         <Box mb={3}>
-          <Title>{t('onboarding:writeSeed.nano.title')}</Title>
-          <Description>{t('onboarding:writeSeed.nano.desc')}</Description>
+          <Title>{t('onboarding:writeSeed.title')}</Title>
+          <Description>{t('onboarding:writeSeed.desc')}</Description>
         </Box>
         <Box align="center" mt={3}>
           <Inner style={{ width: 700 }}>
diff --git a/src/components/OperationsList/index.js b/src/components/OperationsList/index.js
index 92aacc4d..6fdcece6 100644
--- a/src/components/OperationsList/index.js
+++ b/src/components/OperationsList/index.js
@@ -119,7 +119,7 @@ export class OperationsList extends PureComponent<Props, State> {
                     <OperationC
                       operation={operation}
                       account={account}
-                      key={operation.id}
+                      key={`${account.id}_${operation.id}`}
                       onOperationClick={this.handleClickOperation}
                       t={t}
                       withAccount={withAccount}
diff --git a/src/components/Placeholder.js b/src/components/Placeholder.js
new file mode 100644
index 00000000..d77c7c9b
--- /dev/null
+++ b/src/components/Placeholder.js
@@ -0,0 +1,9 @@
+import styled from 'styled-components'
+
+export const PlaceholderLine = styled.div`
+  background-color: ${p => (p.dark ? '#C2C2C2' : '#D6D6D6')};
+  width: ${p => p.width}px;
+  height: 10px;
+  border-radius: 5px;
+  margin: 5px 0;
+`
diff --git a/src/components/RenderError.js b/src/components/RenderError.js
new file mode 100644
index 00000000..1ffa1b80
--- /dev/null
+++ b/src/components/RenderError.js
@@ -0,0 +1,131 @@
+// @flow
+
+import React, { PureComponent } from 'react'
+import { shell, remote } from 'electron'
+import qs from 'querystring'
+import { translate } from 'react-i18next'
+
+import { i } from 'helpers/staticPath'
+import hardReset from 'helpers/hardReset'
+
+import type { T } from 'types/common'
+
+import Spoiler from 'components/base/Spoiler'
+import ExportLogsBtn from 'components/ExportLogsBtn'
+import Box from 'components/base/Box'
+import Space from 'components/base/Space'
+import Button from 'components/base/Button'
+import TranslatedError from './TranslatedError'
+
+type Props = {
+  error: Error,
+  t: T,
+  disableExport?: boolean,
+  children?: *,
+}
+
+class RenderError extends PureComponent<Props, { isHardResetting: boolean }> {
+  state = {
+    isHardResetting: false,
+  }
+
+  handleCreateIssue = () => {
+    const { error } = this.props
+    if (!error) {
+      return
+    }
+    const q = qs.stringify({
+      title: `Error: ${error.message}`,
+      body: `Error was thrown:
+
+\`\`\`
+${error.stack}
+\`\`\`
+`,
+    })
+    shell.openExternal(`https://github.com/LedgerHQ/ledger-live-desktop/issues/new?${q}`)
+  }
+
+  handleRestart = () => {
+    remote.getCurrentWindow().webContents.reloadIgnoringCache()
+  }
+
+  handleHardReset = async () => {
+    this.setState({ isHardResetting: true })
+    try {
+      await hardReset()
+      remote.getCurrentWindow().webContents.reloadIgnoringCache()
+    } catch (err) {
+      this.setState({ isHardResetting: false })
+    }
+  }
+
+  render() {
+    const { error, t, disableExport, children } = this.props
+    const { isHardResetting } = this.state
+    return (
+      <Box align="center" grow>
+        <Space of={100} />
+        <img alt="" src={i('crash-screen.svg')} width={380} />
+        <Space of={40} />
+        <Box ff="Museo Sans|Regular" fontSize={7} color="dark">
+          {t('app:crash.oops')}
+        </Box>
+        <Space of={15} />
+        <Box
+          style={{ width: 500 }}
+          textAlign="center"
+          ff="Open Sans|Regular"
+          color="smoke"
+          fontSize={4}
+        >
+          {t('app:crash.uselessText')}
+        </Box>
+        <Space of={30} />
+        <Box horizontal flow={2}>
+          <Button primary onClick={this.handleRestart}>
+            {t('app:crash.restart')}
+          </Button>
+          {!disableExport ? <ExportLogsBtn /> : null}
+          <Button primary onClick={this.handleCreateIssue}>
+            {t('app:crash.createTicket')}
+          </Button>
+          <Button danger onClick={this.handleHardReset} isLoading={isHardResetting}>
+            {t('app:crash.reset')}
+          </Button>
+        </Box>
+        <Space of={20} />
+        <Spoiler color="wallet" title={t('app:crash.showError')}>
+          <ErrContainer>
+            <TranslatedError error={error} />
+          </ErrContainer>
+        </Spoiler>
+        <Space of={10} />
+        <Spoiler color="wallet" title={t('app:crash.showDetails')}>
+          <ErrContainer>{error.stack}</ErrContainer>
+        </Spoiler>
+        <Space of={100} />
+        {children}
+      </Box>
+    )
+  }
+}
+
+const ErrContainer = ({ children }: { children: any }) => (
+  <pre
+    style={{
+      marginTop: 10,
+      maxWidth: '80%',
+      overflow: 'auto',
+      fontSize: 10,
+      fontFamily: 'monospace',
+      background: 'rgba(0, 0, 0, 0.05)',
+      cursor: 'text',
+      userSelect: 'text',
+    }}
+  >
+    {children}
+  </pre>
+)
+
+export default translate()(RenderError)
diff --git a/src/components/SelectAccount/index.js b/src/components/SelectAccount/index.js
index 3c1fe001..7e683cd9 100644
--- a/src/components/SelectAccount/index.js
+++ b/src/components/SelectAccount/index.js
@@ -69,6 +69,9 @@ const RawSelectAccount = ({ accounts, onChange, value, t, ...props }: Props) =>
       renderValue={renderOption}
       renderOption={renderOption}
       placeholder={t('app:common.selectAccount')}
+      noOptionsMessage={({ inputValue }) =>
+        t('app:common.selectAccountNoOption', { accountName: inputValue })
+      }
       onChange={onChange}
     />
   )
diff --git a/src/components/SelectCurrency/index.js b/src/components/SelectCurrency/index.js
index 3d23dd91..6c7d9a54 100644
--- a/src/components/SelectCurrency/index.js
+++ b/src/components/SelectCurrency/index.js
@@ -40,6 +40,9 @@ const SelectCurrency = ({ onChange, value, t, placeholder, currencies, ...props
       renderValue={renderOption}
       options={options}
       placeholder={placeholder || t('app:common.selectCurrency')}
+      noOptionsMessage={({ inputValue }: { inputValue: string }) =>
+        t('app:common.selectCurrencyNoOption', { currencyName: inputValue })
+      }
       onChange={item => onChange(item ? item.currency : null)}
       {...props}
     />
diff --git a/src/components/SelectExchange.js b/src/components/SelectExchange.js
index 168d509e..7872e598 100644
--- a/src/components/SelectExchange.js
+++ b/src/components/SelectExchange.js
@@ -1,6 +1,7 @@
 // @flow
 import React, { Component } from 'react'
 import { translate } from 'react-i18next'
+import LRU from 'lru-cache'
 import type { Currency } from '@ledgerhq/live-common/lib/types'
 import type { Exchange } from '@ledgerhq/live-common/lib/countervalues/types'
 import logger from 'logger'
@@ -10,6 +11,18 @@ import Text from 'components/base/Text'
 import CounterValues from 'helpers/countervalues'
 import type { T } from 'types/common'
 
+const cache = LRU({ max: 100 })
+
+const getExchanges = (from: Currency, to: Currency) => {
+  const key = `${from.ticker}_${to.ticker}`
+  let promise = cache.get(key)
+  if (promise) return promise
+  promise = CounterValues.fetchExchangesForPair(from, to)
+  promise.catch(() => cache.del(key)) // if it's a failure, we don't want to keep the cache
+  cache.set(key, promise)
+  return promise
+}
+
 class SelectExchange extends Component<
   {
     from: Currency,
@@ -65,7 +78,7 @@ class SelectExchange extends Component<
     const { _loadId } = this
     const { from, to } = this.props
     try {
-      const exchanges = await CounterValues.fetchExchangesForPair(from, to)
+      const exchanges = await getExchanges(from, to)
       if (!this._unmounted && this._loadId === _loadId) {
         this.setState({ exchanges })
       }
@@ -93,6 +106,10 @@ class SelectExchange extends Component<
         options={options}
         onChange={onChange}
         isLoading={options.length === 0}
+        placeholder={t('app:common.selectExchange')}
+        noOptionsMessage={({ inputValue }) =>
+          t('app:common.selectExchangeNoOption', { exchangeName: inputValue })
+        }
         {...props}
       />
     )
diff --git a/src/components/SettingsPage/sections/Display.js b/src/components/SettingsPage/sections/Display.js
index 1b3bd457..0a19b62a 100644
--- a/src/components/SettingsPage/sections/Display.js
+++ b/src/components/SettingsPage/sections/Display.js
@@ -169,7 +169,7 @@ class TabProfile extends PureComponent<Props, State> {
                 to={counterValueCurrency}
                 exchangeId={counterValueExchange}
                 onChange={this.handleChangeExchange}
-                minWidth={150}
+                minWidth={200}
               />
             </Box>
           </Row>
diff --git a/src/components/SyncAgo.js b/src/components/SyncAgo.js
new file mode 100644
index 00000000..320732cf
--- /dev/null
+++ b/src/components/SyncAgo.js
@@ -0,0 +1,16 @@
+// @flow
+
+import React, { PureComponent } from 'react'
+import moment from 'moment'
+import { translate } from 'react-i18next'
+import type { T } from 'types/common'
+import Box from './base/Box'
+
+class SyncAgo extends PureComponent<{ t: T, date: Date }> {
+  render() {
+    const { t, date } = this.props
+    return <Box p={4}>{t('app:common.sync.ago', { time: moment(date).fromNow() })}</Box>
+  }
+}
+
+export default translate()(SyncAgo)
diff --git a/src/components/ThrowBlock.js b/src/components/ThrowBlock.js
index 4ca6a52e..89b0d497 100644
--- a/src/components/ThrowBlock.js
+++ b/src/components/ThrowBlock.js
@@ -1,49 +1,16 @@
 // @flow
-
 import logger from 'logger'
 import React, { PureComponent } from 'react'
-import styled from 'styled-components'
-import { shell, remote } from 'electron'
-import qs from 'querystring'
-import { translate } from 'react-i18next'
-
-import { rgba } from 'styles/helpers'
-import db from 'helpers/db'
-
-import type { T } from 'types/common'
-
-import ExportLogsBtn from 'components/ExportLogsBtn'
-import Box from 'components/base/Box'
-import Button from 'components/base/Button'
-import TranslatedError from './TranslatedError'
+import RenderError from 'components/RenderError'
 
 type Props = {
   children: any,
-  t: T,
 }
 
 type State = {
   error: ?Error,
 }
 
-const Container = styled(Box).attrs({
-  grow: true,
-  align: 'center',
-  justify: 'center',
-  bg: 'lightGraphite',
-  color: 'alertRed',
-  ff: 'Museo Sans|Bold',
-  flow: 2,
-})``
-
-const Inner = styled(Box).attrs({
-  p: 2,
-  bg: p => rgba(p.theme.colors.alertRed, 0.05),
-  borderRadius: 1,
-})`
-  border: ${p => `1px solid ${rgba(p.theme.colors.alertRed, 0.1)}`};
-`
-
 class ThrowBlock extends PureComponent<Props, State> {
   state = {
     error: null,
@@ -54,59 +21,13 @@ class ThrowBlock extends PureComponent<Props, State> {
     this.setState({ error })
   }
 
-  handleCreateIssue = () => {
-    const { error } = this.state
-    if (!error) {
-      return
-    }
-    const q = qs.stringify({
-      title: `Error: ${error.message}`,
-      body: `Error was thrown:
-
-\`\`\`
-${error.stack}
-\`\`\`
-`,
-    })
-    shell.openExternal(`https://github.com/LedgerHQ/ledger-live-desktop/issues/new?${q}`)
-  }
-
-  handleRestart = () => {
-    remote.app.relaunch()
-    remote.app.exit()
-  }
-
-  handleReset = () => {
-    db.resetAll()
-    this.handleRestart()
-  }
-
   render() {
     const { error } = this.state
-    const { t } = this.props
     if (error) {
-      return (
-        <Container>
-          <Inner>
-            <TranslatedError error={error} />
-          </Inner>
-          <Box horizontal flow={2}>
-            <Button primary onClick={this.handleRestart}>
-              {t('app:crash.restart')}
-            </Button>
-            <Button danger onClick={this.handleReset}>
-              {t('app:crash.reset')}
-            </Button>
-            <ExportLogsBtn />
-            <Button primary onClick={this.handleCreateIssue}>
-              {t('app:crash.createTicket')}
-            </Button>
-          </Box>
-        </Container>
-      )
+      return <RenderError error={error} />
     }
     return this.props.children
   }
 }
 
-export default translate()(ThrowBlock)
+export default ThrowBlock
diff --git a/src/components/TopBar/ActivityIndicator.js b/src/components/TopBar/ActivityIndicator.js
index a2c9ff31..fb7b1e58 100644
--- a/src/components/TopBar/ActivityIndicator.js
+++ b/src/components/TopBar/ActivityIndicator.js
@@ -10,7 +10,6 @@ import type { T } from 'types/common'
 import type { AsyncState } from 'reducers/bridgeSync'
 
 import { globalSyncStateSelector } from 'reducers/bridgeSync'
-import { hasAccountsSelector } from 'reducers/accounts'
 import { BridgeSyncConsumer } from 'bridge/BridgeSyncContext'
 import CounterValues from 'helpers/countervalues'
 
@@ -23,7 +22,6 @@ import ItemContainer from './ItemContainer'
 
 const mapStateToProps = createStructuredSelector({
   globalSyncState: globalSyncStateSelector,
-  hasAccounts: hasAccountsSelector,
 })
 
 type Props = {
@@ -128,37 +126,28 @@ class ActivityIndicatorInner extends PureComponent<Props, State> {
   }
 }
 
-const ActivityIndicator = ({
-  globalSyncState,
-  hasAccounts,
-  t,
-}: {
-  globalSyncState: AsyncState,
-  hasAccounts: boolean,
-  t: T,
-}) =>
-  !hasAccounts ? null : (
-    <BridgeSyncConsumer>
-      {setSyncBehavior => (
-        <CounterValues.PollingConsumer>
-          {cvPolling => {
-            const isPending = cvPolling.pending || globalSyncState.pending
-            const isError = cvPolling.error || globalSyncState.error
-            return (
-              <ActivityIndicatorInner
-                t={t}
-                isPending={isPending}
-                isGlobalSyncStatePending={globalSyncState.pending}
-                isError={!!isError && !isPending}
-                cvPoll={cvPolling.poll}
-                setSyncBehavior={setSyncBehavior}
-              />
-            )
-          }}
-        </CounterValues.PollingConsumer>
-      )}
-    </BridgeSyncConsumer>
-  )
+const ActivityIndicator = ({ globalSyncState, t }: { globalSyncState: AsyncState, t: T }) => (
+  <BridgeSyncConsumer>
+    {setSyncBehavior => (
+      <CounterValues.PollingConsumer>
+        {cvPolling => {
+          const isPending = cvPolling.pending || globalSyncState.pending
+          const isError = cvPolling.error || globalSyncState.error
+          return (
+            <ActivityIndicatorInner
+              t={t}
+              isPending={isPending}
+              isGlobalSyncStatePending={globalSyncState.pending}
+              isError={!!isError && !isPending}
+              cvPoll={cvPolling.poll}
+              setSyncBehavior={setSyncBehavior}
+            />
+          )
+        }}
+      </CounterValues.PollingConsumer>
+    )}
+  </BridgeSyncConsumer>
+)
 
 export default compose(
   translate(),
diff --git a/src/components/TopBar/index.js b/src/components/TopBar/index.js
index 11b4bd1c..13d88557 100644
--- a/src/components/TopBar/index.js
+++ b/src/components/TopBar/index.js
@@ -12,6 +12,7 @@ import type { T } from 'types/common'
 
 import { lock } from 'reducers/application'
 import { hasPassword } from 'reducers/settings'
+import { hasAccountsSelector } from 'reducers/accounts'
 import { openModal } from 'reducers/modals'
 
 import IconLock from 'icons/Lock'
@@ -54,6 +55,7 @@ const Bar = styled.div`
 
 const mapStateToProps = state => ({
   hasPassword: hasPassword(state),
+  hasAccounts: hasAccountsSelector(state),
 })
 
 const mapDispatchToProps = {
@@ -63,6 +65,7 @@ const mapDispatchToProps = {
 
 type Props = {
   hasPassword: boolean,
+  hasAccounts: boolean,
   history: RouterHistory,
   location: Location,
   lock: Function,
@@ -91,17 +94,21 @@ class TopBar extends PureComponent<Props> {
     }
   }
   render() {
-    const { hasPassword, t } = this.props
+    const { hasPassword, hasAccounts, t } = this.props
 
     return (
       <Container bg="lightGrey" color="graphite">
         <Inner>
           <Box grow horizontal>
             <GlobalSearch t={t} isHidden />
-            <ActivityIndicator />
-            <Box justifyContent="center">
-              <Bar />
-            </Box>
+            {hasAccounts && (
+              <Fragment>
+                <ActivityIndicator />
+                <Box justifyContent="center">
+                  <Bar />
+                </Box>
+              </Fragment>
+            )}
             <Tooltip render={() => t('app:settings.title')}>
               <ItemContainer isInteractive onClick={this.navigateToSettings}>
                 <IconSettings size={16} />
diff --git a/src/components/TranslatedError.js b/src/components/TranslatedError.js
index 7cb125ca..ff2ec07d 100644
--- a/src/components/TranslatedError.js
+++ b/src/components/TranslatedError.js
@@ -4,6 +4,7 @@
 // - an error can have parameters, to use them, just use field of the Error object, that's what we give to `t()`
 // - returned value is intentially not styled (is universal). wrap this in whatever you need
 
+import logger from 'logger'
 import { PureComponent } from 'react'
 import { translate } from 'react-i18next'
 import type { T } from 'types/common'
@@ -18,7 +19,12 @@ class TranslatedError extends PureComponent<Props> {
     const { t, error } = this.props
     if (!error) return null
     if (typeof error === 'string') return error
-    return t(`errors:${error.name}`, error)
+    const translation = t(`errors:${error.name}`, error)
+    if (translation) {
+      return translation
+    }
+    logger.warn(`TranslatedError: no translation for '${error.name}'`, error)
+    return error.message || error.name || t('errors:generic')
   }
 }
 
diff --git a/src/components/TriggerAppReady.js b/src/components/TriggerAppReady.js
new file mode 100644
index 00000000..e47f2ed2
--- /dev/null
+++ b/src/components/TriggerAppReady.js
@@ -0,0 +1,16 @@
+// @flow
+
+import { PureComponent } from 'react'
+
+export default class TriggerAppReady extends PureComponent<{}> {
+  componentDidMount() {
+    window.requestAnimationFrame(() => (this._timeout = setTimeout(() => window.onAppReady(), 300)))
+  }
+  componentWillUnmount() {
+    clearTimeout(this._timeout)
+  }
+  _timeout: *
+  render() {
+    return null
+  }
+}
diff --git a/src/components/TriggerOnMount/index.js b/src/components/TriggerOnMount/index.js
deleted file mode 100644
index 36923b0e..00000000
--- a/src/components/TriggerOnMount/index.js
+++ /dev/null
@@ -1,15 +0,0 @@
-// @flow
-import { PureComponent } from 'react'
-
-type Props = {
-  callback: () => void,
-}
-
-class TriggerOnMount extends PureComponent<Props> {
-  componentDidMount() {
-    const { callback } = this.props
-    callback()
-  }
-}
-
-export default TriggerOnMount
diff --git a/src/components/Workflow/EnsureGenuine.js b/src/components/Workflow/EnsureGenuine.js
index 831d60c8..a1890480 100644
--- a/src/components/Workflow/EnsureGenuine.js
+++ b/src/components/Workflow/EnsureGenuine.js
@@ -1,7 +1,9 @@
 // @flow
+import { timeout } from 'rxjs/operators/timeout'
 import { PureComponent } from 'react'
 import isEqual from 'lodash/isEqual'
 
+import { GENUINE_TIMEOUT } from 'config/constants'
 import type { Device } from 'types/common'
 
 import getIsGenuine from 'commands/getIsGenuine'
@@ -59,7 +61,8 @@ class EnsureGenuine extends PureComponent<Props, State> {
       this._checking = true
       try {
         const res = await getIsGenuine
-          .send({ devicePath: device.path, targetId: infos.targetId })
+          .send({ devicePath: device.path, targetId: infos.targetId, version: infos.version })
+          .pipe(timeout(GENUINE_TIMEOUT))
           .toPromise()
         if (this._unmounting) return
         const isGenuine = res === '0000'
diff --git a/src/components/Workflow/index.js b/src/components/Workflow/index.js
index 9c5edc0a..e3db974f 100644
--- a/src/components/Workflow/index.js
+++ b/src/components/Workflow/index.js
@@ -31,9 +31,10 @@ type Props = {
       genuineError: ?Error,
     },
   ) => Node,
-  renderMcuUpdate?: (deviceInfo: DeviceInfo) => Node,
-  renderFinalUpdate?: (deviceInfo: DeviceInfo) => Node,
+  renderMcuUpdate?: (device: Device, deviceInfo: DeviceInfo) => Node,
+  renderFinalUpdate?: (device: Device, deviceInfo: DeviceInfo) => Node,
   renderDashboard?: (device: Device, deviceInfo: DeviceInfo, isGenuine: boolean) => Node,
+  onGenuineCheck?: (isGenuine: boolean) => void,
   renderError?: (dashboardError: ?Error, genuineError: ?Error) => Node,
 }
 type State = {}
@@ -47,42 +48,47 @@ class Workflow extends PureComponent<Props, State> {
       renderMcuUpdate,
       renderError,
       renderDefault,
+      onGenuineCheck,
     } = this.props
     return (
       <EnsureDevice>
         {(device: Device) => (
           <EnsureDashboard device={device}>
-            {(deviceInfo: ?DeviceInfo, dashboardError: ?Error) => (
-              <EnsureGenuine device={device} infos={deviceInfo}>
-                {(isGenuine: ?boolean, genuineError: ?Error) => {
-                  if (dashboardError || genuineError) {
-                    return renderError
-                      ? renderError(dashboardError, genuineError)
-                      : renderDefault(device, deviceInfo, isGenuine, {
-                          genuineError,
-                          dashboardError,
-                        })
-                  }
+            {(deviceInfo: ?DeviceInfo, dashboardError: ?Error) => {
+              if (deviceInfo && deviceInfo.mcu && renderMcuUpdate) {
+                return renderMcuUpdate(device, deviceInfo)
+              }
 
-                  if (deviceInfo && deviceInfo.mcu && renderMcuUpdate) {
-                    return renderMcuUpdate(deviceInfo)
-                  }
+              if (deviceInfo && deviceInfo.final && renderFinalUpdate) {
+                return renderFinalUpdate(device, deviceInfo)
+              }
 
-                  if (deviceInfo && deviceInfo.final && renderFinalUpdate) {
-                    return renderFinalUpdate(deviceInfo)
-                  }
+              return (
+                <EnsureGenuine device={device} infos={deviceInfo}>
+                  {(isGenuine: ?boolean, genuineError: ?Error) => {
+                    if (dashboardError || genuineError) {
+                      return renderError
+                        ? renderError(dashboardError, genuineError)
+                        : renderDefault(device, deviceInfo, isGenuine, {
+                            genuineError,
+                            dashboardError,
+                          })
+                    }
 
-                  if (isGenuine && deviceInfo && device && !dashboardError && !genuineError) {
-                    if (renderDashboard) return renderDashboard(device, deviceInfo, isGenuine)
-                  }
+                    if (isGenuine && deviceInfo && device && !dashboardError && !genuineError) {
+                      if (onGenuineCheck) onGenuineCheck(isGenuine)
 
-                  return renderDefault(device, deviceInfo, isGenuine, {
-                    genuineError,
-                    dashboardError,
-                  })
-                }}
-              </EnsureGenuine>
-            )}
+                      if (renderDashboard) return renderDashboard(device, deviceInfo, isGenuine)
+                    }
+
+                    return renderDefault(device, deviceInfo, isGenuine, {
+                      genuineError,
+                      dashboardError,
+                    })
+                  }}
+                </EnsureGenuine>
+              )
+            }}
           </EnsureDashboard>
         )}
       </EnsureDevice>
diff --git a/src/components/base/Button/index.js b/src/components/base/Button/index.js
index dc7f2515..8953eb31 100644
--- a/src/components/base/Button/index.js
+++ b/src/components/base/Button/index.js
@@ -16,8 +16,12 @@ type Style = any // FIXME
 const buttonStyles: { [_: string]: Style } = {
   default: {
     default: noop,
-    active: noop,
-    hover: noop,
+    active: p => `
+      background: ${rgba(p.theme.colors.fog, 0.3)};
+    `,
+    hover: p => `
+      background: ${rgba(p.theme.colors.fog, 0.2)};
+    `,
     focus: () => `
       box-shadow: ${focusedShadowStyle};
     `,
diff --git a/src/components/base/Modal/ModalTitle.js b/src/components/base/Modal/ModalTitle.js
index c4f4c7ed..cc812853 100644
--- a/src/components/base/Modal/ModalTitle.js
+++ b/src/components/base/Modal/ModalTitle.js
@@ -30,6 +30,7 @@ const Back = styled(Box).attrs({
 })`
   cursor: pointer;
   position: absolute;
+  line-height: 1;
   top: 0;
   left: 0;
 
diff --git a/src/components/base/Spoiler/index.js b/src/components/base/Spoiler/index.js
index 4cb21c01..1810223f 100644
--- a/src/components/base/Spoiler/index.js
+++ b/src/components/base/Spoiler/index.js
@@ -17,12 +17,12 @@ type State = {
 }
 
 const Title = styled(Text).attrs({
-  ff: 'Museo Sans|Bold',
-  fontSize: 2,
-  color: 'dark',
+  ff: p => (p.ff ? p.ff : 'Museo Sans|Bold'),
+  fontSize: p => (p.fontSize ? p.fontSize : 2),
+  color: p => (p.color ? p.color : 'dark'),
   tabIndex: 0,
 })`
-  text-transform: uppercase;
+  text-transform: ${p => (!p.textTransform ? 'auto' : 'uppercase')};
   letter-spacing: 1px;
   cursor: pointer;
   outline: none;
@@ -41,15 +41,17 @@ class Spoiler extends PureComponent<Props, State> {
   toggle = () => this.setState({ isOpened: !this.state.isOpened })
 
   render() {
-    const { title, children } = this.props
+    const { title, children, ...p } = this.props
     const { isOpened } = this.state
     return (
       <Fragment>
-        <Box horizontal flow={1} color="dark" align="center">
+        <Box horizontal flow={1} color="dark" align="center" {...p}>
           <IconContainer isOpened={isOpened}>
             <IconChevronRight size={12} />
           </IconContainer>
-          <Title onClick={this.toggle}>{title}</Title>
+          <Title {...p} onClick={this.toggle}>
+            {title}
+          </Title>
         </Box>
         {isOpened && children}
       </Fragment>
diff --git a/src/components/layout/Default.js b/src/components/layout/Default.js
index e7286fa0..c107392e 100644
--- a/src/components/layout/Default.js
+++ b/src/components/layout/Default.js
@@ -17,6 +17,9 @@ import DashboardPage from 'components/DashboardPage'
 import ManagerPage from 'components/ManagerPage'
 import ExchangePage from 'components/ExchangePage'
 import SettingsPage from 'components/SettingsPage'
+import LibcoreBusyIndicator from 'components/LibcoreBusyIndicator'
+import DeviceBusyIndicator from 'components/DeviceBusyIndicator'
+import TriggerAppReady from 'components/TriggerAppReady'
 
 import AppRegionDrag from 'components/AppRegionDrag'
 import IsUnlocked from 'components/IsUnlocked'
@@ -39,7 +42,6 @@ type Props = {
 
 class Default extends Component<Props> {
   componentDidMount() {
-    window.requestAnimationFrame(() => (this._timeout = setTimeout(() => window.onAppReady(), 300)))
     window.addEventListener('keydown', this.kbShortcut)
   }
 
@@ -57,7 +59,6 @@ class Default extends Component<Props> {
   }
 
   componentWillUnmount() {
-    clearTimeout(this._timeout)
     window.removeEventListener('keydown', this.kbShortcut) // Prevents adding multiple listeners when hot reloading
   }
 
@@ -67,12 +68,12 @@ class Default extends Component<Props> {
     }
   }
 
-  _timeout = undefined
   _scrollContainer = null
 
   render() {
     return (
       <Fragment>
+        <TriggerAppReady />
         {process.platform === 'darwin' && <AppRegionDrag />}
 
         <IsUnlocked>
@@ -96,6 +97,9 @@ class Default extends Component<Props> {
               </Main>
             </Box>
           </Box>
+
+          <LibcoreBusyIndicator />
+          <DeviceBusyIndicator />
         </IsUnlocked>
       </Fragment>
     )
diff --git a/src/components/modals/AccountSettingRenderBody.js b/src/components/modals/AccountSettingRenderBody.js
index ee8594e8..c4aef19d 100644
--- a/src/components/modals/AccountSettingRenderBody.js
+++ b/src/components/modals/AccountSettingRenderBody.js
@@ -22,6 +22,7 @@ import Box from 'components/base/Box'
 import Button from 'components/base/Button'
 import Input from 'components/base/Input'
 import Select from 'components/base/Select'
+import SyncAgo from 'components/SyncAgo'
 
 import {
   ModalBody,
@@ -258,12 +259,12 @@ class HelperComp extends PureComponent<Props, State> {
               </Container>
             ) : null}
             <Spoiler title={t('app:account.settings.advancedLogs')}>
+              <SyncAgo date={account.lastSyncDate} />
               <textarea
                 readOnly
                 style={{
                   userSelect: 'text',
                   border: '1px dashed #f9f9f9',
-                  marginTop: '20px',
                   backgroundColor: '#f9f9f9',
                   color: '#000',
                   fontFamily: 'monospace',
diff --git a/src/components/modals/AddAccounts/steps/03-step-import.js b/src/components/modals/AddAccounts/steps/03-step-import.js
index 4573e6a8..ac05fbb1 100644
--- a/src/components/modals/AddAccounts/steps/03-step-import.js
+++ b/src/components/modals/AddAccounts/steps/03-step-import.js
@@ -11,7 +11,7 @@ import Box from 'components/base/Box'
 import CurrencyBadge from 'components/base/CurrencyBadge'
 import Button from 'components/base/Button'
 import AccountsList from 'components/base/AccountsList'
-import IconExchange from 'icons/Exchange'
+import IconExclamationCircleThin from 'icons/ExclamationCircleThin'
 
 import type { StepProps } from '../index'
 
@@ -20,14 +20,30 @@ class StepImport extends PureComponent<StepProps> {
     this.startScanAccountsDevice()
   }
 
+  componentDidUpdate(prevProps: StepProps) {
+    // handle case when we click on stop sync
+    if (prevProps.scanStatus !== 'finished' && this.props.scanStatus === 'finished') {
+      this.unsub()
+    }
+
+    // handle case when we click on retry sync
+    if (prevProps.scanStatus !== 'scanning' && this.props.scanStatus === 'scanning') {
+      this.startScanAccountsDevice()
+    }
+  }
+
   componentWillUnmount() {
+    this.unsub()
+  }
+
+  scanSubscription = null
+
+  unsub = () => {
     if (this.scanSubscription) {
       this.scanSubscription.unsubscribe()
     }
   }
 
-  scanSubscription = null
-
   translateName(account: Account) {
     const { t } = this.props
     let { name } = account
@@ -45,6 +61,7 @@ class StepImport extends PureComponent<StepProps> {
   }
 
   startScanAccountsDevice() {
+    this.unsub()
     const { currency, currentDevice, setState } = this.props
     try {
       invariant(currency, 'No currency to scan')
@@ -82,10 +99,7 @@ class StepImport extends PureComponent<StepProps> {
   }
 
   handleRetry = () => {
-    if (this.scanSubscription) {
-      this.scanSubscription.unsubscribe()
-      this.scanSubscription = null
-    }
+    this.unsub()
     this.handleResetState()
     this.startScanAccountsDevice()
   }
@@ -131,6 +145,17 @@ class StepImport extends PureComponent<StepProps> {
 
   handleUnselectAll = () => this.props.setState({ checkedAccountsIds: [] })
 
+  renderError() {
+    const { err, t } = this.props
+    invariant(err, 'Trying to render inexisting error')
+    return (
+      <Box style={{ height: 200 }} align="center" justify="center" color="alertRed">
+        <IconExclamationCircleThin size={43} />
+        <Box mt={4}>{t('app:addAccounts.somethingWentWrong')}</Box>
+      </Box>
+    )
+  }
+
   render() {
     const {
       scanStatus,
@@ -142,6 +167,12 @@ class StepImport extends PureComponent<StepProps> {
       t,
     } = this.props
 
+    if (err) {
+      return this.renderError()
+    }
+
+    const currencyName = currency ? currency.name : ''
+
     const importableAccounts = scannedAccounts.filter(acc => {
       if (acc.operations.length <= 0) {
         return false
@@ -160,9 +191,8 @@ class StepImport extends PureComponent<StepProps> {
       count: importableAccounts.length,
     })
 
-    const importableAccountsEmpty = t('app:addAccounts.noAccountToImport', {
-      currencyName: currency ? ` ${currency.name}}` : '',
-    })
+    const importableAccountsEmpty = t('app:addAccounts.noAccountToImport', { currencyName })
+    const hasAlreadyEmptyAccount = scannedAccounts.some(a => a.operations.length === 0)
 
     return (
       <Fragment>
@@ -180,7 +210,11 @@ class StepImport extends PureComponent<StepProps> {
           />
           <AccountsList
             title={t('app:addAccounts.createNewAccount.title')}
-            emptyText={t('app:addAccounts.createNewAccount.noOperationOnLastAccount')}
+            emptyText={
+              hasAlreadyEmptyAccount
+                ? t('app:addAccounts.createNewAccount.noOperationOnLastAccount')
+                : t('app:addAccounts.createNewAccount.noAccountToCreate', { currencyName })
+            }
             accounts={creatableAccounts}
             checkedIds={checkedAccountsIds}
             onToggleAccount={this.handleToggleAccount}
@@ -189,17 +223,7 @@ class StepImport extends PureComponent<StepProps> {
           />
         </Box>
 
-        {err && (
-          <Box shrink>
-            {err.message}
-            <Button small outline onClick={this.handleRetry}>
-              <Box horizontal flow={2} align="center">
-                <IconExchange size={13} />
-                <span>{t('app:addAccounts.retrySync')}</span>
-              </Box>
-            </Button>
-          </Box>
-        )}
+        {err && <Box shrink>{err.message}</Box>}
       </Fragment>
     )
   }
@@ -208,6 +232,7 @@ class StepImport extends PureComponent<StepProps> {
 export default StepImport
 
 export const StepImportFooter = ({
+  setState,
   scanStatus,
   onClickAdd,
   onCloseModal,
@@ -250,7 +275,21 @@ export const StepImportFooter = ({
   return (
     <Fragment>
       {currency && <CurrencyBadge mr="auto" currency={currency} />}
-      <Button primary disabled={scanStatus !== 'finished'} onClick={onClick}>
+      {scanStatus === 'error' && (
+        <Button mr={2} onClick={() => setState({ scanStatus: 'scanning', err: null })}>
+          {t('app:common.retry')}
+        </Button>
+      )}
+      {scanStatus === 'scanning' && (
+        <Button mr={2} onClick={() => setState({ scanStatus: 'finished' })}>
+          {t('app:common.stop')}
+        </Button>
+      )}
+      <Button
+        primary
+        disabled={scanStatus !== 'finished' && scanStatus !== 'error'}
+        onClick={onClick}
+      >
         {ctaWording}
       </Button>
     </Fragment>
diff --git a/src/components/modals/OperationDetails.js b/src/components/modals/OperationDetails.js
index 6f0b23c1..9e665e08 100644
--- a/src/components/modals/OperationDetails.js
+++ b/src/components/modals/OperationDetails.js
@@ -17,6 +17,7 @@ import { MODAL_OPERATION_DETAILS } from 'config/constants'
 import { getMarketColor } from 'styles/helpers'
 
 import Box from 'components/base/Box'
+import Spoiler from 'components/base/Spoiler'
 import Button from 'components/base/Button'
 import Bar from 'components/base/Bar'
 import FormattedVal from 'components/base/FormattedVal'
@@ -28,26 +29,23 @@ import { currencySettingsForAccountSelector, marketIndicatorSelector } from 'red
 
 import CounterValue from 'components/CounterValue'
 import ConfirmationCheck from 'components/OperationsList/ConfirmationCheck'
-
-const Line = styled(Box).attrs({
-  horizontal: true,
-})``
-
-const ColLeft = styled(Box).attrs({
-  color: 'smoke',
-  ff: 'Open Sans',
-  fontSize: 4,
+import Ellipsis from '../base/Ellipsis'
+
+const OpDetailsTitle = styled(Box).attrs({
+  ff: 'Museo Sans|ExtraBold',
+  fontSize: 2,
+  color: 'black',
+  textTransform: 'uppercase',
+  mb: 1,
 })`
-  width: 95px;
+  letter-spacing: 2px;
 `
-const ColRight = styled(Box).attrs({
-  fontSize: 4,
+
+const OpDetailsData = styled(Box).attrs({
   ff: 'Open Sans',
-  color: 'dark',
-  shrink: true,
-})`
-  word-break: break-all;
-`
+  color: 'smoke',
+  fontSize: 4,
+})``
 
 const CanSelect = styled.div`
   user-select: text;
@@ -91,7 +89,8 @@ type Props = {
 const OperationDetails = connect(mapStateToProps)((props: Props) => {
   const { t, onClose, operation, account, currencySettings, marketIndicator } = props
   if (!operation || !account || !currencySettings) return null
-  const { hash, date, senders, recipients, type, fee } = operation
+  const { hash, date, senders, type, fee, recipients } = operation
+
   const { name, unit, currency } = account
   const amount = getOperationAmountNumber(operation)
   const isNegative = operation.type === 'OUT'
@@ -108,21 +107,21 @@ const OperationDetails = connect(mapStateToProps)((props: Props) => {
   return (
     <ModalBody onClose={onClose}>
       <ModalTitle>{t('app:operationDetails.title')}</ModalTitle>
-      <ModalContent flow={4}>
-        <Box alignItems="center" mt={3}>
+      <ModalContent flow={3}>
+        <Box alignItems="center" mt={1}>
           <ConfirmationCheck
             marketColor={marketColor}
             isConfirmed={isConfirmed}
             style={{
-              transform: 'scale(2)',
+              transform: 'scale(1.5)',
             }}
             t={t}
             type={type}
             withTooltip={false}
           />
-          <Box mt={5} alignItems="center">
+          <Box my={4} alignItems="center">
             <Box>
-              <FormattedVal unit={unit} alwaysShowSign showCode val={amount} fontSize={8} />
+              <FormattedVal unit={unit} alwaysShowSign showCode val={amount} fontSize={6} />
             </Box>
             <Box mt={1}>
               <CounterValue
@@ -135,60 +134,67 @@ const OperationDetails = connect(mapStateToProps)((props: Props) => {
             </Box>
           </Box>
         </Box>
-        <Line mt={4}>
-          <ColLeft>{t('app:operationDetails.account')}</ColLeft>
-          <ColRight>{name}</ColRight>
-        </Line>
-        <B />
-        <Line>
-          <ColLeft>{t('app:operationDetails.date')}</ColLeft>
-          <ColRight>{moment(date).format('LLL')}</ColRight>
-        </Line>
+        <Box horizontal flow={2}>
+          <Box flex={1}>
+            <OpDetailsTitle>{t('app:operationDetails.account')}</OpDetailsTitle>
+            <OpDetailsData>{name}</OpDetailsData>
+          </Box>
+          <Box flex={1}>
+            <OpDetailsTitle>{t('app:operationDetails.date')}</OpDetailsTitle>
+            <OpDetailsData>{moment(date).format('LLL')}</OpDetailsData>
+          </Box>
+        </Box>
         <B />
-        <Line>
-          <ColLeft>{t('app:operationDetails.status')}</ColLeft>
-          <ColRight color={isConfirmed ? 'positiveGreen' : null} horizontal flow={1}>
-            <Box>
-              {isConfirmed
-                ? t('app:operationDetails.confirmed')
-                : t('app:operationDetails.notConfirmed')}
-            </Box>
-            <Box>{`(${confirmations})`}</Box>
-          </ColRight>
-        </Line>
+        <Box horizontal flow={2}>
+          <Box flex={1}>
+            <OpDetailsTitle>{t('app:operationDetails.fees')}</OpDetailsTitle>
+            {fee ? (
+              <Fragment>
+                <OpDetailsData>
+                  <FormattedVal unit={unit} showCode val={fee} color="dark" />
+                </OpDetailsData>
+              </Fragment>
+            ) : null}
+          </Box>
+          <Box flex={1}>
+            <OpDetailsTitle>{t('app:operationDetails.status')}</OpDetailsTitle>
+            <OpDetailsData color={isConfirmed ? 'positiveGreen' : null} horizontal>
+              <Box>
+                {isConfirmed
+                  ? t('app:operationDetails.confirmed')
+                  : t('app:operationDetails.notConfirmed')}
+              </Box>
+              <Box>{`(${confirmations})`}</Box>
+            </OpDetailsData>
+          </Box>
+        </Box>
         <B />
-        {fee ? (
-          <Fragment>
-            <Line>
-              <ColLeft>{t('app:operationDetails.fees')}</ColLeft>
-              <ColRight>
-                <FormattedVal unit={unit} showCode val={fee} color="dark" />
-              </ColRight>
-            </Line>
-            <B />
-          </Fragment>
-        ) : null}
-        <Line>
-          <ColLeft>{t('app:operationDetails.from')}</ColLeft>
-          <ColRight>{uniqSenders.map(v => <CanSelect key={v}>{v}</CanSelect>)}</ColRight>
-        </Line>
+        <Box>
+          <OpDetailsTitle>{t('app:operationDetails.from')}</OpDetailsTitle>
+          <OpDetailsData>{uniqSenders.map(v => <CanSelect key={v}>{v}</CanSelect>)}</OpDetailsData>
+        </Box>
         <B />
-        <Line>
-          <ColLeft>{t('app:operationDetails.to')}</ColLeft>
-          <ColRight>{recipients.map(v => <CanSelect key={v}> {v} </CanSelect>)}</ColRight>
-        </Line>
+        <Box>
+          <OpDetailsTitle>{t('app:operationDetails.to')}</OpDetailsTitle>
+          <RenderRecipients recipients={recipients} t={t} />
+        </Box>
         <B />
-        <Line>
-          <ColLeft>{t('app:operationDetails.identifier')}</ColLeft>
-          <ColRight>
-            <CanSelect>{hash}</CanSelect>
-          </ColRight>
-        </Line>
+        <Box>
+          <OpDetailsTitle>{t('app:operationDetails.identifier')}</OpDetailsTitle>
+          <OpDetailsData>
+            <CanSelect>
+              <Ellipsis>{hash}</Ellipsis>
+            </CanSelect>
+          </OpDetailsData>
+        </Box>
       </ModalContent>
+
       <ModalFooter horizontal justify="flex-end" flow={2}>
-        <Button onClick={onClose}>{t('app:common.cancel')}</Button>
+        <Button padded onClick={onClose}>
+          {t('app:common.cancel')}
+        </Button>
         {url ? (
-          <Button primary onClick={() => shell.openExternal(url)}>
+          <Button ml="auto" primary padded onClick={() => shell.openExternal(url)}>
             {t('app:operationDetails.viewOperation')}
           </Button>
         ) : null}
@@ -216,3 +222,32 @@ const OperationDetailsWrapper = ({ t }: { t: T }) => (
 )
 
 export default translate()(OperationDetailsWrapper)
+
+export function RenderRecipients({ recipients, t }: { recipients: *, t: T }) {
+  // Hardcoded for now
+  const numToShow = 2
+  return (
+    <Box>
+      <OpDetailsData>
+        {recipients
+          .slice(0, numToShow)
+          .map(recipient => <CanSelect key={recipient}>{recipient}</CanSelect>)}
+      </OpDetailsData>
+      {recipients.length > numToShow && (
+        <Spoiler
+          title={t('app:operationDetails.showMore', { recipients: recipients.length - numToShow })}
+          color="wallet"
+          ff="Open Sans|SemiBold"
+          fontSize={4}
+          mt={1}
+        >
+          <OpDetailsData>
+            {recipients
+              .slice(numToShow)
+              .map(recipient => <CanSelect key={recipient}>{recipient}</CanSelect>)}
+          </OpDetailsData>
+        </Spoiler>
+      )}
+    </Box>
+  )
+}
diff --git a/src/components/modals/ReleaseNotes.js b/src/components/modals/ReleaseNotes.js
index 0e5f51f9..a003fc2c 100644
--- a/src/components/modals/ReleaseNotes.js
+++ b/src/components/modals/ReleaseNotes.js
@@ -233,7 +233,7 @@ class ReleaseNotes extends PureComponent<Props, State> {
       )
     }
 
-    return <Modal name={MODAL_RELEASES_NOTES} render={renderBody} width="600px" />
+    return <Modal name={MODAL_RELEASES_NOTES} render={renderBody} />
   }
 }
 
diff --git a/src/config/constants.js b/src/config/constants.js
index 74ca72ef..40400588 100644
--- a/src/config/constants.js
+++ b/src/config/constants.js
@@ -20,6 +20,8 @@ export const GET_CALLS_RETRY = intFromEnv('GET_CALLS_RETRY', 2)
 export const SYNC_MAX_CONCURRENT = intFromEnv('LEDGER_SYNC_MAX_CONCURRENT', 6)
 export const SYNC_BOOT_DELAY = 2 * 1000
 export const SYNC_ALL_INTERVAL = 60 * 1000
+export const GENUINE_TIMEOUT = intFromEnv('GENUINE_TIMEOUT', 60 * 1000)
+export const SYNC_TIMEOUT = intFromEnv('SYNC_TIMEOUT', 30 * 1000)
 
 export const CHECK_APP_INTERVAL_WHEN_INVALID = 600
 export const CHECK_APP_INTERVAL_WHEN_VALID = 1200
@@ -29,6 +31,10 @@ export const DEVICE_DISCONNECT_DEBOUNCE = intFromEnv('LEDGER_DEVICE_DISCONNECT_D
 
 // Endpoints...
 
+export const LEDGER_COUNTERVALUES_API = stringFromEnv(
+  'LEDGER_COUNTERVALUES_API',
+  'https://ledger-countervalue-poc.herokuapp.com',
+)
 export const LEDGER_REST_API_BASE = stringFromEnv(
   'LEDGER_REST_API_BASE',
   'https://api.ledgerwallet.com/',
@@ -59,6 +65,7 @@ export const SKIP_GENUINE = boolFromEnv('SKIP_GENUINE')
 export const SKIP_ONBOARDING = boolFromEnv('SKIP_ONBOARDING')
 export const SHOW_LEGACY_NEW_ACCOUNT = boolFromEnv('SHOW_LEGACY_NEW_ACCOUNT')
 export const HIGHLIGHT_I18N = boolFromEnv('HIGHLIGHT_I18N')
+export const DISABLE_ACTIVITY_INDICATORS = boolFromEnv('DISABLE_ACTIVITY_INDICATORS')
 
 // Other constants
 
diff --git a/src/helpers/apps/installApp.js b/src/helpers/apps/installApp.js
index 1998cfb5..2183d639 100644
--- a/src/helpers/apps/installApp.js
+++ b/src/helpers/apps/installApp.js
@@ -1,8 +1,10 @@
 // @flow
-
+import qs from 'qs'
 import type Transport from '@ledgerhq/hw-transport'
 
-import { createSocketDialog } from 'helpers/common'
+import { BASE_SOCKET_URL_SECURE } from 'config/constants'
+import { createDeviceSocket } from 'helpers/socket'
+
 import type { LedgerScriptParams } from 'helpers/common'
 
 /**
@@ -10,7 +12,14 @@ import type { LedgerScriptParams } from 'helpers/common'
  */
 export default async function installApp(
   transport: Transport<*>,
-  { appParams }: { appParams: LedgerScriptParams },
+  targetId: string | number,
+  { app }: { app: LedgerScriptParams },
 ): Promise<*> {
-  return createSocketDialog(transport, '/install', appParams)
+  const params = {
+    targetId,
+    ...app,
+    firmwareKey: app.firmware_key,
+  }
+  const url = `${BASE_SOCKET_URL_SECURE}/install?${qs.stringify(params)}`
+  return createDeviceSocket(transport, url).toPromise()
 }
diff --git a/src/helpers/apps/listApps.js b/src/helpers/apps/listApps.js
index becd8373..21f9ec03 100644
--- a/src/helpers/apps/listApps.js
+++ b/src/helpers/apps/listApps.js
@@ -1,20 +1,24 @@
 // @flow
 import axios from 'axios'
 
-import { MANAGER_API_BASE } from 'config/constants'
+import { APPLICATIONS_BY_DEVICE } from 'helpers/urls'
+import getDeviceVersion from 'helpers/devices/getDeviceVersion'
+import getCurrentFirmware from 'helpers/devices/getCurrentFirmware'
 
-export default async (targetId: string | number) => {
+export default async (targetId: string | number, version: string) => {
   try {
-    const { data: deviceData } = await axios.get(
-      `${MANAGER_API_BASE}/device_versions_target_id/${targetId}`,
-    )
-    const { data } = await axios.get('https://api.ledgerwallet.com/update/applications')
-
-    if (deviceData.name in data) {
-      return data[deviceData.name]
+    const provider = 1
+    const deviceData = await getDeviceVersion(targetId)
+    const firmwareData = await getCurrentFirmware({ deviceId: deviceData.id, version })
+    const params = {
+      provider,
+      current_se_firmware_final_version: firmwareData.id,
+      device_version: deviceData.id,
     }
-
-    return data['nanos-1.4']
+    const {
+      data: { application_versions },
+    } = await axios.post(APPLICATIONS_BY_DEVICE, params)
+    return application_versions.length > 0 ? application_versions : []
   } catch (err) {
     const error = Error(err.message)
     error.stack = err.stack
diff --git a/src/helpers/apps/uninstallApp.js b/src/helpers/apps/uninstallApp.js
index c67c029c..570e361c 100644
--- a/src/helpers/apps/uninstallApp.js
+++ b/src/helpers/apps/uninstallApp.js
@@ -1,8 +1,10 @@
 // @flow
-
+import qs from 'qs'
 import type Transport from '@ledgerhq/hw-transport'
 
-import { createSocketDialog } from 'helpers/common'
+import { BASE_SOCKET_URL_SECURE } from 'config/constants'
+import { createDeviceSocket } from 'helpers/socket'
+
 import type { LedgerScriptParams } from 'helpers/common'
 
 /**
@@ -10,12 +12,15 @@ import type { LedgerScriptParams } from 'helpers/common'
  */
 export default async function uninstallApp(
   transport: Transport<*>,
-  { appParams }: { appParams: LedgerScriptParams },
+  targetId: string | number,
+  { app }: { app: LedgerScriptParams },
 ): Promise<*> {
   const params = {
-    ...appParams,
-    firmware: appParams.delete,
-    firmwareKey: appParams.deleteKey,
+    targetId,
+    ...app,
+    firmware: app.delete,
+    firmwareKey: app.delete_key,
   }
-  return createSocketDialog(transport, '/install', params)
+  const url = `${BASE_SOCKET_URL_SECURE}/install?${qs.stringify(params)}`
+  return createDeviceSocket(transport, url).toPromise()
 }
diff --git a/src/helpers/common.js b/src/helpers/common.js
index 34b34f09..3d5a9c30 100644
--- a/src/helpers/common.js
+++ b/src/helpers/common.js
@@ -1,11 +1,7 @@
 // @flow
 
 // FIXME remove this file! 'helpers/common.js' RLY? :P
-
-import qs from 'qs'
 import type Transport from '@ledgerhq/hw-transport'
-import { BASE_SOCKET_URL, BASE_SOCKET_URL_SECURE } from 'config/constants'
-import { createDeviceSocket } from './socket'
 
 const APDUS = {
   GET_FIRMWARE: [0xe0, 0x01, 0x00, 0x00],
@@ -16,35 +12,14 @@ const APDUS = {
 
 export type LedgerScriptParams = {
   firmware?: string,
-  firmwareKey?: string,
+  firmware_key?: string,
   delete?: string,
-  deleteKey?: string,
+  delete_key?: string,
   targetId?: string | number,
-}
-
-type FirmwareUpdateType = 'osu' | 'final'
-
-export async function getMemInfos(transport: Transport<*>): Promise<Object> {
-  const { targetId } = await getFirmwareInfo(transport)
-  // Dont ask me about this `perso_11`: I don't know. But we need it.
-  return createSocketDialog(transport, '/get-mem-infos', { targetId, perso: 'perso_11' })
-}
-
-/**
- * Open socket connection with firmware api, and init a dialog
- * with the device
- */
-export async function createSocketDialog(
-  transport: Transport<*>,
-  endpoint: string,
-  params: LedgerScriptParams,
-  managerUrl: boolean = false,
-): Promise<string> {
-  console.warn('DEPRECATED createSocketDialog: use createDeviceSocket') // eslint-disable-line
-  const url = `${managerUrl ? BASE_SOCKET_URL_SECURE : BASE_SOCKET_URL}${endpoint}?${qs.stringify(
-    params,
-  )}`
-  return createDeviceSocket(transport, url).toPromise()
+  name: string,
+  version: string,
+  icon: string,
+  app?: number,
 }
 
 /**
@@ -66,15 +41,3 @@ export async function getFirmwareInfo(transport: Transport<*>) {
     throw error
   }
 }
-
-/**
- * Helpers to build OSU and Final firmware params
- */
-export const buildParamsFromFirmware = (type: FirmwareUpdateType): Function => (
-  data: any,
-): LedgerScriptParams => ({
-  firmware: data[`${type}_firmware`],
-  firmwareKey: data[`${type}_firmware_key`],
-  perso: data[`${type}_perso`],
-  targetId: data[`${type}_target_id`],
-})
diff --git a/src/helpers/countervalues.js b/src/helpers/countervalues.js
index a6671bcf..7f8801b1 100644
--- a/src/helpers/countervalues.js
+++ b/src/helpers/countervalues.js
@@ -1,6 +1,7 @@
 // @flow
 
 import { createSelector } from 'reselect'
+import { LEDGER_COUNTERVALUES_API } from 'config/constants'
 import createCounterValues from '@ledgerhq/live-common/lib/countervalues'
 import { setExchangePairsAction } from 'actions/settings'
 import { currenciesSelector } from 'reducers/accounts'
@@ -53,7 +54,7 @@ const addExtraPollingHooks = (schedulePoll, cancelPoll) => {
 
 const CounterValues = createCounterValues({
   log: (...args) => logger.log('CounterValues:', ...args),
-  getAPIBaseURL: () => 'https://ledger-countervalue-poc.herokuapp.com',
+  getAPIBaseURL: () => LEDGER_COUNTERVALUES_API,
   storeSelector: state => state.countervalues,
   pairsSelector,
   setExchangePairsAction,
diff --git a/src/helpers/deviceAccess.js b/src/helpers/deviceAccess.js
index 34aa3499..c380fe0c 100644
--- a/src/helpers/deviceAccess.js
+++ b/src/helpers/deviceAccess.js
@@ -18,7 +18,7 @@ export const withDevice: WithDevice = devicePath => {
     semaphorePerDevice[devicePath] || (semaphorePerDevice[devicePath] = createSemaphore(1))
 
   return job =>
-    takeSemaphorePromise(sem, async () => {
+    takeSemaphorePromise(sem, devicePath, async () => {
       const t = await retry(() => TransportNodeHid.open(devicePath), { maxRetry: 1 })
 
       if (DEBUG_DEVICE) t.setDebugMode(true)
@@ -32,17 +32,32 @@ export const withDevice: WithDevice = devicePath => {
     })
 }
 
-function takeSemaphorePromise<T>(sem, f: () => Promise<T>): Promise<T> {
+function takeSemaphorePromise<T>(sem, devicePath, f: () => Promise<T>): Promise<T> {
   return new Promise((resolve, reject) => {
     sem.take(() => {
+      process.send({
+        type: 'setDeviceBusy',
+        busy: true,
+        devicePath,
+      })
       f().then(
         r => {
           sem.leave()
           resolve(r)
+          process.send({
+            type: 'setDeviceBusy',
+            busy: false,
+            devicePath,
+          })
         },
         e => {
           sem.leave()
           reject(e)
+          process.send({
+            type: 'setDeviceBusy',
+            busy: false,
+            devicePath,
+          })
         },
       )
     })
diff --git a/src/helpers/devices/getCurrentFirmware.js b/src/helpers/devices/getCurrentFirmware.js
new file mode 100644
index 00000000..41808bbb
--- /dev/null
+++ b/src/helpers/devices/getCurrentFirmware.js
@@ -0,0 +1,26 @@
+// @flow
+import axios from 'axios'
+
+import { GET_CURRENT_FIRMWARE } from 'helpers/urls'
+
+type Input = {
+  version: string,
+  deviceId: string | number,
+}
+
+let error
+export default async (input: Input): Promise<*> => {
+  try {
+    const provider = 1
+    const { data } = await axios.post(GET_CURRENT_FIRMWARE, {
+      device_version: input.deviceId,
+      version_name: input.version,
+      provider,
+    })
+    return data
+  } catch (err) {
+    error = Error(err.message)
+    error.stack = err.stack
+    throw error
+  }
+}
diff --git a/src/helpers/devices/getDeviceVersion.js b/src/helpers/devices/getDeviceVersion.js
new file mode 100644
index 00000000..87cd2b6d
--- /dev/null
+++ b/src/helpers/devices/getDeviceVersion.js
@@ -0,0 +1,19 @@
+// @flow
+import axios from 'axios'
+
+import { GET_DEVICE_VERSION } from 'helpers/urls'
+
+export default async (targetId: string | number): Promise<*> => {
+  try {
+    const provider = 1
+    const { data } = await axios.post(GET_DEVICE_VERSION, {
+      provider,
+      target_id: targetId,
+    })
+    return data
+  } catch (err) {
+    const error = Error(err.message)
+    error.stack = err.stack
+    throw err
+  }
+}
diff --git a/src/helpers/devices/getFirmwareInfo.js b/src/helpers/devices/getFirmwareInfo.js
deleted file mode 100644
index 389cbd1b..00000000
--- a/src/helpers/devices/getFirmwareInfo.js
+++ /dev/null
@@ -1,34 +0,0 @@
-// @flow
-import axios from 'axios'
-import isEmpty from 'lodash/isEmpty'
-
-import { MANAGER_API_BASE } from 'config/constants'
-
-type Input = {
-  version: string,
-  targetId: string | number,
-}
-
-let error
-export default async (data: Input) => {
-  try {
-    const { data: seFirmwareVersion } = await axios.post(
-      `${MANAGER_API_BASE}/firmware_versions_name`,
-      {
-        se_firmware_name: data.version,
-        target_id: data.targetId,
-      },
-    )
-
-    if (!isEmpty(seFirmwareVersion)) {
-      return seFirmwareVersion
-    }
-
-    error = Error('could not retrieve firmware informations, try again later')
-    throw error
-  } catch (err) {
-    error = Error(err.message)
-    error.stack = err.stack
-    throw error
-  }
-}
diff --git a/src/helpers/devices/getIsGenuine.js b/src/helpers/devices/getIsGenuine.js
index ad82420f..4fa98804 100644
--- a/src/helpers/devices/getIsGenuine.js
+++ b/src/helpers/devices/getIsGenuine.js
@@ -1,12 +1,26 @@
 // @flow
 import type Transport from '@ledgerhq/hw-transport'
-import { createSocketDialog } from 'helpers/common'
 import { SKIP_GENUINE } from 'config/constants'
+import { WS_GENUINE } from 'helpers/urls'
+
+import { createDeviceSocket } from 'helpers/socket'
+import getCurrentFirmware from './getCurrentFirmware'
+import getDeviceVersion from './getDeviceVersion'
 
 export default async (
   transport: Transport<*>,
-  { targetId }: { targetId: string | number },
-): Promise<string> =>
-  SKIP_GENUINE
+  app: { targetId: string | number, version: string },
+): Promise<string> => {
+  const { targetId, version } = app
+  const device = await getDeviceVersion(app.targetId)
+  const firmware = await getCurrentFirmware({ deviceId: device.id, version })
+  const params = {
+    targetId,
+    version,
+    perso: firmware.perso,
+  }
+  const url = WS_GENUINE(params)
+  return SKIP_GENUINE
     ? new Promise(resolve => setTimeout(() => resolve('0000'), 1000))
-    : createSocketDialog(transport, '/genuine', { targetId }, true)
+    : createDeviceSocket(transport, url).toPromise()
+}
diff --git a/src/helpers/devices/getLatestFirmwareForDevice.js b/src/helpers/devices/getLatestFirmwareForDevice.js
index f3f2ae17..dc705a80 100644
--- a/src/helpers/devices/getLatestFirmwareForDevice.js
+++ b/src/helpers/devices/getLatestFirmwareForDevice.js
@@ -1,39 +1,38 @@
 // @flow
 import axios from 'axios'
-import isEmpty from 'lodash/isEmpty'
-import { MANAGER_API_BASE } from 'config/constants'
+import { GET_LATEST_FIRMWARE } from 'helpers/urls'
 
-import getFirmwareInfo from './getFirmwareInfo'
+import getCurrentFirmware from './getCurrentFirmware'
+import getDeviceVersion from './getDeviceVersion'
 
 type Input = {
-  targetId: string | number,
   version: string,
+  targetId: string | number,
 }
 
-export default async (data: Input) => {
+export default async (input: Input) => {
   try {
-    // Get firmware infos with firmware name and device version
-    const seFirmwareVersion = await getFirmwareInfo(data)
-
+    const provider = 1
+    const { targetId, version } = input
     // Get device infos from targetId
-    const { data: deviceVersion } = await axios.get(
-      `${MANAGER_API_BASE}/device_versions_target_id/${data.targetId}`,
-    )
+    const deviceVersion = await getDeviceVersion(targetId)
+
+    // Get firmware infos with firmware name and device version
+    const seFirmwareVersion = await getCurrentFirmware({ version, deviceId: deviceVersion.id })
 
     // Fetch next possible firmware
-    const { data: serverData } = await axios.post(`${MANAGER_API_BASE}/get_latest_firmware`, {
-      current_se_firmware_version: seFirmwareVersion.id,
+    const { data } = await axios.post(GET_LATEST_FIRMWARE, {
+      current_se_firmware_final_version: seFirmwareVersion.id,
       device_version: deviceVersion.id,
-      providers: [1],
+      provider,
     })
 
-    const { se_firmware_version } = serverData
-
-    if (!isEmpty(se_firmware_version)) {
-      return se_firmware_version
+    if (data.result === 'null') {
+      return null
     }
 
-    return null
+    const { se_firmware_osu_version } = data
+    return se_firmware_osu_version
   } catch (err) {
     const error = Error(err.message)
     error.stack = err.stack
diff --git a/src/helpers/devices/getMemInfo.js b/src/helpers/devices/getMemInfo.js
index 5e5ad62e..bf0e2f45 100644
--- a/src/helpers/devices/getMemInfo.js
+++ b/src/helpers/devices/getMemInfo.js
@@ -2,10 +2,9 @@
 
 import type Transport from '@ledgerhq/hw-transport'
 
-import { getFirmwareInfo, createSocketDialog } from 'helpers/common'
+import { getFirmwareInfo } from 'helpers/common'
 
 export default async function getMemInfos(transport: Transport<*>): Promise<Object> {
-  const { targetId } = await getFirmwareInfo(transport)
-  // Dont ask me about this `perso_11`: I don't know. But we need it.
-  return createSocketDialog(transport, '/get-mem-infos', { targetId, perso: 'perso_11' })
+  const { targetId } = await getFirmwareInfo(transport) // eslint-disable-line
+  return new Promise(resolve => setTimeout(() => resolve({}), 1000))
 }
diff --git a/src/helpers/devices/getNextMCU.js b/src/helpers/devices/getNextMCU.js
new file mode 100644
index 00000000..fc246abe
--- /dev/null
+++ b/src/helpers/devices/getNextMCU.js
@@ -0,0 +1,26 @@
+// @flow
+import axios from 'axios'
+
+import { GET_NEXT_MCU } from 'helpers/urls'
+import createCustomErrorClass from 'helpers/createCustomErrorClass'
+
+const LatestMCUInstalledError = createCustomErrorClass('LatestMCUInstalledError')
+
+export default async (bootloaderVersion: string): Promise<*> => {
+  try {
+    const { data } = await axios.post(GET_NEXT_MCU, {
+      bootloader_version: bootloaderVersion,
+    })
+
+    // FIXME: nextVersion will not be able to "default" when Error
+    // handling is standardize on the API side
+    if (data === 'default' || !data.name) {
+      throw new LatestMCUInstalledError('there is no next mcu version to install')
+    }
+    return data
+  } catch (err) {
+    const error = Error(err.message)
+    error.stack = err.stack
+    throw err
+  }
+}
diff --git a/src/helpers/firmware/installFinalFirmware.js b/src/helpers/firmware/installFinalFirmware.js
index 43a57435..d57b0739 100644
--- a/src/helpers/firmware/installFinalFirmware.js
+++ b/src/helpers/firmware/installFinalFirmware.js
@@ -1,18 +1,16 @@
 // @flow
-
 import type Transport from '@ledgerhq/hw-transport'
 
-import { createSocketDialog, buildParamsFromFirmware } from 'helpers/common'
+import { WS_INSTALL } from 'helpers/urls'
+import { createDeviceSocket } from 'helpers/socket'
 
 type Input = Object
 type Result = *
 
-const buildOsuParams = buildParamsFromFirmware('final')
-
 export default async (transport: Transport<*>, firmware: Input): Result => {
   try {
-    const osuData = buildOsuParams(firmware)
-    await createSocketDialog(transport, '/install', osuData)
+    const url = WS_INSTALL(firmware)
+    await createDeviceSocket(transport, url).toPromise()
     return { success: true }
   } catch (err) {
     const error = Error(err.message)
diff --git a/src/helpers/firmware/installMcu.js b/src/helpers/firmware/installMcu.js
index e44f4d47..0c0ceb62 100644
--- a/src/helpers/firmware/installMcu.js
+++ b/src/helpers/firmware/installMcu.js
@@ -1,8 +1,23 @@
 // @flow
+import type Transport from '@ledgerhq/hw-transport'
 
-type Result = Promise<boolean>
+import { WS_MCU } from 'helpers/urls'
+import { createDeviceSocket } from 'helpers/socket'
+import getNextMCU from 'helpers/devices/getNextMCU'
 
-// TODO: IMPLEMENTATION FOR FLASHING FIRMWARE
-// GETTING APDUS FROM SERVER
-// SEND THE APDUS TO DEVICE
-export default async (): Result => new Promise(resolve => resolve(true))
+type Result = Promise<*>
+
+export default async (
+  transport: Transport<*>,
+  args: { targetId: string | number, version: string },
+): Result => {
+  const { version } = args
+  const nextVersion = await getNextMCU(version)
+
+  const params = {
+    targetId: args.targetId,
+    version: nextVersion.name,
+  }
+  const url = WS_MCU(params)
+  return createDeviceSocket(transport, url).toPromise()
+}
diff --git a/src/helpers/firmware/installOsuFirmware.js b/src/helpers/firmware/installOsuFirmware.js
index c213cb58..5c8b95ff 100644
--- a/src/helpers/firmware/installOsuFirmware.js
+++ b/src/helpers/firmware/installOsuFirmware.js
@@ -1,19 +1,26 @@
 // @flow
-
 import type Transport from '@ledgerhq/hw-transport'
 
-import { createSocketDialog, buildParamsFromFirmware } from 'helpers/common'
+import { WS_INSTALL } from 'helpers/urls'
+import { createDeviceSocket } from 'helpers/socket'
 
-type Input = Object
+import type { LedgerScriptParams } from 'helpers/common'
 
 type Result = Promise<{ success: boolean, error?: any }>
 
-const buildOsuParams = buildParamsFromFirmware('osu')
-
-export default async (transport: Transport<*>, firmware: Input): Result => {
+export default async (
+  transport: Transport<*>,
+  targetId: string | number,
+  firmware: LedgerScriptParams,
+): Result => {
   try {
-    const osuData = buildOsuParams(firmware)
-    await createSocketDialog(transport, '/install', osuData)
+    const params = {
+      targetId,
+      ...firmware,
+      firmwareKey: firmware.firmware_key,
+    }
+    const url = WS_INSTALL(params)
+    await createDeviceSocket(transport, url).toPromise()
     return { success: true }
   } catch (err) {
     const error = Error(err.message)
diff --git a/src/helpers/urls.js b/src/helpers/urls.js
new file mode 100644
index 00000000..a8bc82fb
--- /dev/null
+++ b/src/helpers/urls.js
@@ -0,0 +1,27 @@
+// @flow
+import qs from 'qs'
+
+import { MANAGER_API_BASE, BASE_SOCKET_URL_SECURE } from 'config/constants'
+import type { LedgerScriptParams } from 'helpers/common'
+
+const urlBuilder = (base: string) => (endpoint: string): string => `${base}/${endpoint}`
+
+const managerUrlbuilder = urlBuilder(MANAGER_API_BASE)
+
+const wsURLBuilder = (endpoint: string) => (params?: Object) =>
+  `${BASE_SOCKET_URL_SECURE}/${endpoint}${params ? `?${qs.stringify(params)}` : ''}`
+
+// const wsURLBuilderProxy = (endpoint: string) => (params?: Object) =>
+//   `ws://manager.ledger.fr:3501/${endpoint}${params ? `?${qs.stringify(params)}` : ''}`
+
+export const GET_DEVICE_VERSION: string = managerUrlbuilder('get_device_version')
+export const APPLICATIONS_BY_DEVICE: string = managerUrlbuilder('get_apps')
+export const GET_CURRENT_FIRMWARE: string = managerUrlbuilder('get_firmware_version')
+export const GET_LATEST_FIRMWARE: string = managerUrlbuilder('get_latest_firmware')
+export const GET_NEXT_MCU: string = managerUrlbuilder('mcu_versions_bootloader')
+
+export const WS_INSTALL: (arg: LedgerScriptParams) => string = wsURLBuilder('install')
+export const WS_GENUINE: (arg: { targetId: string | number }) => string = wsURLBuilder('genuine')
+export const WS_MCU: (arg: { targetId: string | number, version: string }) => string = wsURLBuilder(
+  'mcu',
+)
diff --git a/src/helpers/withLibcore.js b/src/helpers/withLibcore.js
index e2d42054..f1fe3fd4 100644
--- a/src/helpers/withLibcore.js
+++ b/src/helpers/withLibcore.js
@@ -3,8 +3,24 @@
 // TODO: `core` should be typed
 type Job<A> = Object => Promise<A>
 
-export default function withLibcore<A>(job: Job<A>): Promise<A> {
+let counter = 0
+export default async function withLibcore<A>(job: Job<A>): Promise<A> {
   const core = require('./init-libcore').default
   core.getPoolInstance()
-  return job(core)
+  try {
+    if (counter++ === 0) {
+      process.send({
+        type: 'setLibcoreBusy',
+        busy: true,
+      })
+    }
+    return job(core)
+  } finally {
+    if (--counter === 0) {
+      process.send({
+        type: 'setLibcoreBusy',
+        busy: false,
+      })
+    }
+  }
 }
diff --git a/src/index.ejs b/src/index.ejs
index c429954a..6dc06cdd 100644
--- a/src/index.ejs
+++ b/src/index.ejs
@@ -7,10 +7,14 @@
 
       <%= __GLOBAL_STYLES__ %>
 
+      body {
+        background: #f9f9f9;
+      }
+
       #preload {
         -webkit-app-region: drag;
         align-items: center;
-        background: white;
+        background: #f9f9f9;
         bottom: 0;
         display: none;
         flex-direction: column;
@@ -20,13 +24,38 @@
         position: fixed;
         right: 0;
         top: 0;
-        transition: opacity 0.4s ease-in-out;
+        transition: opacity 0.5s ease-in-out;
         z-index: 100;
       }
 
-      #preload video {
-        height: 144px;
-        width: 256px;
+      #preload .logo {
+        height: 80px;
+        width: 80px;
+        animation: logo 4s infinite 0.5s;
+        transform-origin: 50% 50%;
+        opacity: 0;
+        transition: opacity 0.5s ease-in-out;
+      }
+
+      @keyframes logo {
+        0% {
+          transform: rotate(0deg);
+        }
+        20% {
+          transform: rotate(360deg);
+        }
+        30% {
+          transform: rotate(360deg);
+        }
+        50% {
+          transform: rotate(720deg);
+        }
+        60% {
+          transform: rotate(720deg);
+        }
+        100% {
+          transform: rotate(0deg);
+        }
       }
 
     </style>
@@ -41,45 +70,43 @@
   </head>
   <body>
     <div id="preload">
-      <video autoplay loop muted src="<%= __DEV__ ? '.' : '../static' %>/videos/loader.mp4" />
+      <img class="logo" src="<%= __DEV__ ? '.' : '../static' %>/images/ledgerlive-logo.svg" alt="" />
     </div>
     <div id="app"></div>
     <script>
-      const { remote } = require('electron')
-      const { name } = remote.getCurrentWindow()
+    const { remote } = require('electron')
+const { name } = remote.getCurrentWindow()
 
-      const preloadEl = document.getElementById('preload')
-      const appEl = document.getElementById('app')
+const preloadEl = document.getElementById('preload')
+const appEl = document.getElementById('app')
+const logoEl = preloadEl.querySelector('.logo')
 
-      const initApp = (options = {}) => {
-        const { force = false } = options
+const initApp = (options = {}) => {
+  const { force = false } = options
 
-        if (force) {
-          preloadEl.remove()
-        } else {
-          preloadEl.style.opacity = 0
+  if (force) {
+    preloadEl.remove()
+  } else {
+    preloadEl.style.opacity = 0
 
-          preloadEl.addEventListener('transitionend', () => preloadEl.remove())
-        }
-      }
-
-      if (name === 'MainWindow') {
-        preloadEl.style.display = 'flex'
-
-        let waitTime = 0
-
-        const PRELOAD_WAIT_TIME_MIN = 2e3
-        const interval = setInterval(() => (waitTime += 250), 250)
+    preloadEl.addEventListener('transitionend', () => preloadEl.remove())
+  }
+}
 
-        window.onAppReady = () => {
-          const delay = PRELOAD_WAIT_TIME_MIN - waitTime
-
-          clearInterval(interval)
-          setTimeout(initApp, delay > 0 ? delay : 1)
-        }
-      } else {
-        initApp({ force: true })
-      }
-    </script>
+if (name === 'MainWindow') {
+  setTimeout(() => {
+    logoEl.style.opacity = 1
+  }, 50)
+  preloadEl.style.display = 'flex'
+  const startTime = Date.now()
+  const PRELOAD_WAIT_TIME_MIN = 2000
+  window.onAppReady = () => {
+    const delay = Math.max(0, PRELOAD_WAIT_TIME_MIN - (Date.now() - startTime))
+    setTimeout(initApp, delay)
+  }
+} else {
+  initApp({ force: true })
+}
+</script>
   </body>
 </html>
diff --git a/src/main/bridge.js b/src/main/bridge.js
index 2b71fcd1..79323d2e 100644
--- a/src/main/bridge.js
+++ b/src/main/bridge.js
@@ -97,16 +97,19 @@ ipcMainListenReceiveCommands({
 })
 
 function handleGlobalInternalMessage(payload) {
-  if (payload.type === 'executeHttpQueryOnRenderer') {
-    const win = getMainWindow && getMainWindow()
-    if (!win) {
-      logger.warn("can't executeHttpQueryOnRenderer because no renderer")
-      return
+  switch (payload.type) {
+    case 'setLibcoreBusy':
+    case 'setDeviceBusy':
+    case 'executeHttpQueryOnRenderer': {
+      const win = getMainWindow && getMainWindow()
+      if (!win) {
+        logger.warn(`can't ${payload.type} because no renderer`)
+        return
+      }
+      win.webContents.send(payload.type, payload)
+      break
     }
-    win.webContents.send('executeHttpQuery', {
-      id: payload.id,
-      networkArg: payload.networkArg,
-    })
+    default:
   }
 }
 
diff --git a/src/reducers/onboarding.js b/src/reducers/onboarding.js
index 10cb0968..9a05cad5 100644
--- a/src/reducers/onboarding.js
+++ b/src/reducers/onboarding.js
@@ -24,6 +24,7 @@ export type OnboardingState = {
     isGenuineFail: boolean,
     isDeviceGenuine: boolean,
     genuineCheckUnavailable: ?Error,
+    displayErrorScreen: boolean,
   },
   isLedgerNano: boolean | null,
   flowType: string,
@@ -38,6 +39,7 @@ const state: OnboardingState = {
     isGenuineFail: false,
     isDeviceGenuine: false,
     genuineCheckUnavailable: null,
+    displayErrorScreen: false,
   },
   isLedgerNano: null,
   flowType: '',
@@ -71,7 +73,7 @@ const state: OnboardingState = {
     },
     {
       name: 'selectDevice',
-      label: 'Select Device',
+      label: 'onboarding:breadcrumb.selectDevice',
       options: {
         showFooter: false,
         showBackground: true,
@@ -80,7 +82,7 @@ const state: OnboardingState = {
     },
     {
       name: 'selectPIN',
-      label: 'Select PIN',
+      label: 'onboarding:breadcrumb.selectPIN',
       options: {
         showFooter: false,
         showBackground: true,
@@ -89,7 +91,7 @@ const state: OnboardingState = {
     },
     {
       name: 'writeSeed',
-      label: 'Write Seed',
+      label: 'onboarding:breadcrumb.writeSeed',
       options: {
         showFooter: false,
         showBackground: true,
@@ -98,7 +100,7 @@ const state: OnboardingState = {
     },
     {
       name: 'genuineCheck',
-      label: 'Genuine Check',
+      label: 'onboarding:breadcrumb.genuineCheck',
       options: {
         showFooter: false,
         showBackground: true,
@@ -107,7 +109,7 @@ const state: OnboardingState = {
     },
     {
       name: 'setPassword',
-      label: 'Set Password',
+      label: 'onboarding:breadcrumb.setPassword',
       options: {
         showFooter: false,
         showBackground: true,
@@ -116,7 +118,7 @@ const state: OnboardingState = {
     },
     {
       name: 'analytics',
-      label: 'Analytics & Bug report',
+      label: 'onboarding:breadcrumb.analytics',
       options: {
         showFooter: false,
         showBackground: true,
diff --git a/src/renderer/events.js b/src/renderer/events.js
index bb106f27..63d266f2 100644
--- a/src/renderer/events.js
+++ b/src/renderer/events.js
@@ -15,7 +15,9 @@ import network from 'api/network'
 import { ipcRenderer } from 'electron'
 import debug from 'debug'
 
-import { CHECK_UPDATE_DELAY } from 'config/constants'
+import { CHECK_UPDATE_DELAY, DISABLE_ACTIVITY_INDICATORS } from 'config/constants'
+import { onSetDeviceBusy } from 'components/DeviceBusyIndicator'
+import { onSetLibcoreBusy } from 'components/LibcoreBusyIndicator'
 
 import { hasPassword } from 'reducers/settings'
 import { lock } from 'reducers/application'
@@ -87,7 +89,7 @@ export default ({ store }: { store: Object }) => {
     }
   })
 
-  ipcRenderer.on('executeHttpQuery', (event: any, { networkArg, id }) => {
+  ipcRenderer.on('executeHttpQueryOnRenderer', (event: any, { networkArg, id }) => {
     network(networkArg).then(
       result => {
         ipcRenderer.send('executeHttpQueryPayload', { type: 'success', id, result })
@@ -98,6 +100,16 @@ export default ({ store }: { store: Object }) => {
     )
   })
 
+  if (!DISABLE_ACTIVITY_INDICATORS) {
+    ipcRenderer.on('setLibcoreBusy', (event: any, { busy }) => {
+      onSetLibcoreBusy(busy)
+    })
+
+    ipcRenderer.on('setDeviceBusy', (event: any, { busy, devicePath }) => {
+      onSetDeviceBusy(devicePath, busy)
+    })
+  }
+
   if (__PROD__) {
     // TODO move this to "command" pattern
     const updaterHandlers = {
diff --git a/src/renderer/init.js b/src/renderer/init.js
index 0ad9407d..a91a2087 100644
--- a/src/renderer/init.js
+++ b/src/renderer/init.js
@@ -27,6 +27,7 @@ import hardReset from 'helpers/hardReset'
 
 import sentry from 'sentry/browser'
 import App from 'components/App'
+import AppError from 'components/AppError'
 
 import 'styles/global'
 
@@ -99,5 +100,5 @@ function r(Comp) {
 init().catch(e => {
   // for now we make the app crash instead of pending forever. later we can render the error OR try to recover, but probably this is unrecoverable cases.
   logger.error(e)
-  process.exit(1)
+  r(<AppError error={e} language="en" />)
 })
diff --git a/static/i18n/en/app.yml b/static/i18n/en/app.yml
index 293005ae..6b589f92 100644
--- a/static/i18n/en/app.yml
+++ b/static/i18n/en/app.yml
@@ -11,7 +11,11 @@ common:
   chooseWalletPlaceholder: Choose a wallet...
   currency: Currency
   selectAccount: Select an account
+  selectAccountNoOption: 'No account matching "{{accountName}}"'
   selectCurrency: Select a currency
+  selectCurrencyNoOption: 'No currency matching "{{currencyName}}"'
+  selectExchange: Select an exchange
+  selectExchangeNoOption: 'No exchange matching "{{exchangeName}}"'
   sortBy: Sort by
   search: Search
   save: Save
@@ -23,6 +27,7 @@ common:
   next: Next
   back: Back
   retry: Retry
+  stop: Stop
   close: Close
   eastern: Eastern
   western: Western
@@ -37,6 +42,7 @@ common:
     upToDate: Up to date
     error: Sync error.
     refresh: Refresh
+    ago: Synced {{time}}
   error:
     load: Unable to load
     noResults: No results
@@ -138,12 +144,13 @@ addAccounts:
   editName: Edit name
   newAccount: New account
   legacyAccount: '{{accountName}} (legacy)'
-  noAccountToImport: We didnt find any {{currencyName}}} account to import.
+  noAccountToImport: We didnt find any {{currencyName}} account to import.
   success: Great success!
   createNewAccount:
     title: Create new account
     noOperationOnLastAccount: You cannot create a new account because your last account has no operations
-  retrySync: Retry sync
+    noAccountToCreate: We didnt find any {{currencyName}} account to create.
+  somethingWentWrong: Something went wrong during synchronization.
   cta:
     create: 'Create account'
     import: 'Import account'
@@ -158,8 +165,9 @@ operationDetails:
   fees: Fees
   from: From
   to: To
-  identifier: Identifier
+  identifier: Hash
   viewOperation: View operation
+  showMore: See {{recipients}} more
 operationList:
   noMoreOperations: No more operations
 manager:
@@ -361,6 +369,10 @@ update:
   newVersionReady: A new update is available.
   relaunch: Update now
 crash:
+  oops: Oops, something went wrong.
+  uselessText: You may try again by restarting Ledger Live. Please export your logs and contact Ledger Support if the problem persists.
   restart: Restart app
-  reset: Reset app files
-  createTicket: Create ticket
+  reset: Hard reset
+  createTicket: Create issue
+  showDetails: Show details
+  showError: Show error
diff --git a/static/i18n/en/errors.yml b/static/i18n/en/errors.yml
index 456fc91a..108a9402 100644
--- a/static/i18n/en/errors.yml
+++ b/static/i18n/en/errors.yml
@@ -1,7 +1,9 @@
-RangeError: {{message}}
-Error: {{message}}
-LedgerAPIErrorWithMessage: {{message}}
-TransportStatusError: {{message}}
+generic: An error occurred
+RangeError: '{{message}}'
+Error: '{{message}}'
+LedgerAPIErrorWithMessage: '{{message}}'
+TransportStatusError: '{{message}}'
+TimeoutError: 'Timeout reached'
 FeeEstimationFailed: 'fee estimation failed (status: {{status}})'
 NotEnoughBalance: 'Not enough balance'
 BtcUnmatchedApp: 'You must open application ‘{{currencyName}}’ on the device'
@@ -17,3 +19,4 @@ WebsocketConnectionFailed: Failed to establish a socket connection
 DeviceSocketFail: Device socket failure
 DeviceSocketNoBulkStatus: Device socket failure (bulk)
 DeviceSocketNoHandler: Device socket failure (handler {{query}})
+LatestMCUInstalledError: The latest MCU is already installed on the Device
diff --git a/static/i18n/en/onboarding.yml b/static/i18n/en/onboarding.yml
index d09f78e2..5f9793b5 100644
--- a/static/i18n/en/onboarding.yml
+++ b/static/i18n/en/onboarding.yml
@@ -1,20 +1,23 @@
+breadcrumb:
+  selectDevice: Select device
+  selectPIN: Choose PIN
+  writeSeed: Recovery phrase
+  genuineCheck: Security check
+  setPassword: Encrypt data
+  analytics: Analytics
 start:
   title: Welcome to Ledger Live
-  startBtn: Get Started
+  startBtn: Get started
 init:
-  title: Welcome to Ledger Live, the computer companion app to your Ledger device
+  title: Get started with your Ledger device
   newDevice:
-    title: Initialize your new Ledger device
-    desc: Please replace it with the final wording once it’s done.
+    title: Initialize a new Ledger device
   restoreDevice:
     title: Restore a Ledger device
-    desc: Please replace it with the final wording once it’s done.
   initializedDevice:
-    title: I have already initialized my device
-    desc: Please replace it with the final wording once it’s done.
+    title: Use a device that's already initialized
   noDevice:
     title: Do not have a Ledger device yet?
-    desc: Please replace it with the final wording once it’s done.
 noDevice:
   title: Do not have a Ledger device yet?
   buyNew:
@@ -24,100 +27,113 @@ noDevice:
   learnMore:
     title: Learn about Ledger Live
 selectDevice:
-  title: To get started, select your device
+  title: Select your device
   ledgerNanoCard:
     title: Ledger Nano S
-    desc: Please replace it with the final wording once it’s done.
   ledgerBlueCard:
     title: Ledger Blue
-    desc:  Please replace it with the final wording once it’s done.
 selectPIN:
-  title: Start initialization & choose your PIN code
+#  initialize:
+  title: Start initialization - Choose your PIN code
   instructions:
     ledgerNano:
       step1: Connect the Ledger Nano S to your computer.
       step2: Press both buttons simultaneously as instructed on the screen.
-      step3: Press the right button to select Configure as new device.
-      step4: Choose a PIN code between 4 and 8 digits long.
+      step3: Press the right button to select Configure as new device?. # <bold>Configure as new device?<bold>.
+      step4: 'Choose a PIN code between 4 and 8 digits long. Then select the checkmark (✓).'
     ledgerBlue:
       step1: Connect the Ledger Blue to your computer.
       step2: Tap on Configure as new device.
       step3: Choose a PIN code between 4 and 8 digits long.
+    # restore:
+    #     title: Start restoration - Choose your PIN code
+    #     instructions:
+    #       nano:
+    #         step1: Connect the Ledger Nano S to your computer.
+    #         step2: Press both buttons simultaneously as instructed on the screen.
+    #         step3: Press the left button to cancel Initialize as new device?. Press the right button to select Restore configuration?. #  <bold>Initialize as new device?</bold>  <bold>Restore configuration?</bold>.
+    #         step4: 'Choose a PIN code between 4 and 8 digits long. Then select the checkmark (✓).'
+    #       blue:
+    #         step1: Connect the Ledger Blue to your computer.
+    #         step2: Tap on Restore configuration. # <bold>Restore configuration</bold>.
+    #         step3: Choose a PIN code between 4 and 8 digits long.
   disclaimer:
-    note1: Choose your own PIN code. This code unlocks your device.
+    note1: Choose your own PIN code. This code will unlock your device.
     note2: An 8-digit PIN code offers an optimum level of security.
-    note3: Never use a device supplied with a PIN code and/or a 24-word recovery phrase.
+    note3: Never use a device supplied with a PIN code or a 24-word recovery phrase.
 writeSeed:
-  restore:
-    title: Save your recovery phrase
-    desc: Your recovery phrase is formed by 24 words. They will be displayed only once.
-    step1: Press the right button to select the length of your recovery phrase. Press both buttons to confirm.
-    step2: 'Select the first letters of Word #1 by pressing the right or left button. Press both buttons to confirm each letter.'
-    step3: 'Select Word #1 from the suggested words. Press both buttons to continue.'
-    step4: Repeat the process until the last word.
+  title: Save your recovery phrase
+  desc: Your device will generate a recovery phrase of 24 words, displayed only once.
   nano:
-    title: Save your recovery phrase
-    desc: Your recovery phrase is formed by 24 words. They will be displayed only once.
-    step1: 'Copy the first word (Word #1) in position 1 on the blank Recovery sheet.'
-    step2: 'Press the right button to display Word #2 and repeat the process until all 24 words are copied on the Recovery sheet.'
-    step3: Confirm your recovery phrase press both buttons to validate each word displayed on the screen.
+    step1: 'Copy the word displayed below Word #1 in position 1 on a blank Recovery sheet.' # <bold>Word #1</bold> <italic>Recovery sheet</italic>
+    step2: 'Press the right button to display Word #2 and repeat the process until all 24 words are copied on the Recovery sheet.' # <bold>Word #2</bold> <italic>Recovery sheet</italic>
+    step3: 'Confirm your recovery phrase: select each requested word and press both buttons to validate it.'
   blue:
-    title: Save your recovery phrase
-    desc: Your recovery phrase is formed by 24 words. They will be displayed only once.
-    step1: Copy each word of the recovery phrase on the blank Recovery sheet. Make sure to copy the words in the same order.
-    step2: Tap NEXT to display the following words. Tap PREVIOUS to go back.
-    step3: Enter the requested words to confirm your recovery phrase.
+    step1: Copy each word of the recovery phrase on a blank Recovery sheet. Copy the words in the same order. # <i>Recovery sheet</i>
+    step2: Tap Next to move to the next words. Repeat the process until the Confirmation screen appears. # <bold>Next</bold> <bold>Confirmation</bold>
+    step3: Type each requested word to confirm your recovery phrase.
+  restore:
+      title: Enter your recovery phrase
+      desc: Copy the 24-word recovery phrase from your Recovery sheet on your device.
+      nano:
+        step1: Select the length of your recovery phrase. Press both buttons to continue.
+        step2: 'Select the first letters of Word #1 by pressing the right or left button. Press both buttons to confirm each letter.' # <bold>Word #1</bold>
+        step3: 'Select Word #1 from the suggested words. Press both buttons to continue.'  # <bold>Word #1</bold>
+        step4: Repeat the process until the last word.
+      ledgerBlue:
+        step1: Select the length of your recovery phrase.
+        step2: Type the first word of your recovery phrase. Select the word when it appears.
+        step3: Repeat the process until the last word.
   disclaimer:
-    note1: Carefully secure your 24 words out of sight.
-    note2: Ledger does not keep any backup of your 24 words.
-    note3: Make sure you are the sole holder of the 24-word recovery phrase.
-    note4: Never use a device supplied with a recovery phrase and/or a PIN code.
+    note1: Carefully secure your 24-word recovery phrase out of sight.
+    note2: Ledger does not keep any backup of your recovery phrase.
+    note3: Make sure you are the sole holder of your recovery phrase.
+    note4: Never use a device supplied with a recovery phrase or a PIN code.
 genuineCheck:
   title: Final security check
   descNano: Your Ledger Nano S should now display Your device is now ready. Before getting started, please confirm that
-  descBlue: Your Ledger Blue should now display Your device is now ready. Before getting started, please confirm that
+  descBlue: #Your Ledger Blue should now display Your device is now ready. Before getting started, please confirm that
   steps:
     step1:
       title: Did you choose your PIN code by yourself?
-      desc: This is a long text, please replace it with the final wording once it’s done. Lorem ipsum dolor amet ledger lorem dolor
     step2:
       title: Did you save your recovery phrase by yourself?
-      desc: This is a long text, please replace it with the final wording once it’s done. Lorem ipsum dolor amet ledger lorem dolor
+      desc:
     step3:
       title: Check if your Ledger device is genuine
-      desc: This is a long text, please replace it with the final wording once it’s done. Lorem ipsum dolor amet ledger lorem dolor
-  isGenuinePassed: Your Nano S is genuine
+      desc:
+  isGenuinePassed: 'Genuine'
   buttons:
     genuineCheck: Genuine check
-    contactSupport: Contact Support
+    contactSupport: Ledger Support
   errorPage:
     ledgerNano:
-      title: Something is wrong with your Ledger Nano S
-      desc: A problem occurred with your Ledger Nano S. Contact Ledger Support to get assistance or go back to the security check.
+      title: Oops, something went wrong...
+      desc: Go back to the security check or request Ledger Support assistance.
     ledgerBlue:
-      title: Something is wrong with your Ledger Blue
-      desc: A problem occurred with your Ledger Blue. Contact Ledger Support to get assistance or go back to the security check.
+      title: Oops, something went wrong...
+      desc: Go back to the security check or request Ledger Support assistance.
 setPassword:
-  title: Protect your privacy (optional)
-  desc: Set a password to prevent unauthorized access to Ledger Live data stored on your computer, including account names, balances, transactions and public addresses.
+  title: Encrypt Ledger Live data
+  desc: Enhance your privacy. Set a password to encrypt Ledger Live data stored on your computer, including account names, balances, transactions and public addresses.
   disclaimer:
-    note1: Make sure to remember your password and do not share it.
+    note1: Make sure to remember your password. Do not share it.
     note2: Losing your password requires resetting Ledger Live and re-adding accounts.
-    note3: Loss of password doesn’t affect your crypto-assets.
+    note3: Resetting Ledger Live does not affect your crypto-assets.
+    password: Password
+    confirmPassword: Confirm password
+    skipThisStep: Skip this step
 analytics:
-  title: Help Ledger to improve its products and services
-  desc: This is a long text, please replace it with the final wording once it’s done.
Lorem ipsum dolor amet ledger lorem dolor ipsum amet
+  title: Analytics and bug reports
+  desc: Share anonymous usage and diagnostics data to help improve Ledger products, services and security features.
   shareAnalytics:
-    title: Share analytics
-    desc: Help Ledger improve its products and services by automatically sending diagnostics and usage data.
-  termsConditions:
-    title: Terms and Conditions
-    desc: Please accept terms and conditions to proceed
+    title: Share usage data
+    desc: Enable analytics of anonymous data to help Ledger improve its user's experience. This includes the operating system, language, firmware versions and the number of added accounts.
   sentryLogs:
-    title: Sentry Logs
-    desc: Help Ledger improve its products and services by automatically sending diagnostics and usage data.
+    title: Report bugs
+    desc: Automatically send bug reports to help Ledger developers diagnose issues and improve Ledger Live performance.
 finish:
-  title: This is the title of the screen. 1 line is the maximum
-  desc: This is a long text, please replace it with the final wording once it’s done.
Lorem ipsum dolor amet ledger lorem dolor ipsum amet
-  openAppButton: Open app
-  followUsLabel: Follow us to stay updated
+  title: 'Ready for launch!'
+  desc: The value of crypto assets can go up or down. Balances shown in your portfolio may involve double conversions and are for indicative purposes only!
+  openAppButton: Launch
+  followUsLabel:
diff --git a/static/i18n/fr/app.yml b/static/i18n/fr/app.yml
index b98f23bf..d2eeeec3 100644
--- a/static/i18n/fr/app.yml
+++ b/static/i18n/fr/app.yml
@@ -12,7 +12,11 @@ common:
   chooseWalletPlaceholder: Choose a wallet...
   currency: Currency
   selectAccount: Select an account
+  selectAccountNoOption: 'No account matching "{{accountName}}"'
   selectCurrency: Select a currency
+  selectCurrencyNoOption: 'No currency matching "{{currencyName}}"'
+  selectExchange: Select an exchange
+  selectExchangeNoOption: 'No exchange matching "{{exchangeName}}"'
   sortBy: Sort by
   search: Search
   save: Save
@@ -24,6 +28,7 @@ common:
   next: Next
   back: Back
   retry: Retry
+  stop: Stop
   close: Close
   eastern: Eastern
   western: Western
@@ -38,6 +43,7 @@ common:
     upToDate: Up to date
     error: Sync error.
     refresh: Refresh
+    ago: Synced {{time}}
   error:
     load: Unable to load
     noResults: No results
@@ -139,12 +145,13 @@ addAccounts:
   editName: Edit name
   newAccount: New account
   legacyAccount: '{{accountName}} (legacy)'
-  noAccountToImport: We didnt find any {{currencyName}}} account to import.
+  noAccountToImport: We didnt find any {{currencyName}} account to import.
   success: Great success!
   createNewAccount:
     title: Create new account
     noOperationOnLastAccount: You cannot create a new account because your last account has no operations
-  retrySync: Retry sync
+    noAccountToCreate: We didnt find any {{currencyName}} account to create.
+  somethingWentWrong: Something went wrong during synchronization.
   cta:
     create: 'Create account'
     import: 'Import account'
@@ -159,8 +166,9 @@ operationDetails:
   fees: Fees
   from: From
   to: To
-  identifier: Identifier
+  identifier: Hash
   viewOperation: View operation
+  showMore: See {{recipients}} more
 operationList:
   noMoreOperations: No more operations
 manager:
@@ -362,6 +370,10 @@ update:
   newVersionReady: A new update is available.
   relaunch: Update now
 crash:
+  oops: Oops, something went wrong.
+  uselessText: You may try again by restarting Ledger Live. Please export your logs and contact Ledger Support if the problem persists.
   restart: Restart app
-  reset: Reset app files
-  createTicket: Create ticket
+  reset: Hard reset
+  createTicket: Create issue
+  showDetails: Show details
+  showError: Show error
diff --git a/static/i18n/fr/errors.yml b/static/i18n/fr/errors.yml
index c8209f96..1d25eb06 100644
--- a/static/i18n/fr/errors.yml
+++ b/static/i18n/fr/errors.yml
@@ -1,12 +1,10 @@
 ---
-RangeError:
-  - message
-Error:
-  - message
-LedgerAPIErrorWithMessage:
-  - message
-TransportStatusError:
-  - message
+generic: An error occurred
+RangeError: '{{message}}'
+Error: '{{message}}'
+LedgerAPIErrorWithMessage: '{{message}}'
+TransportStatusError: '{{message}}'
+TimeoutError: 'Timeout reached'
 FeeEstimationFailed: 'fee estimation failed (status: {{status}})'
 NotEnoughBalance: 'Not enough balance'
 BtcUnmatchedApp: 'You must open application ‘{{currencyName}}’ on the device'
@@ -22,3 +20,4 @@ WebsocketConnectionFailed: Failed to establish a socket connection
 DeviceSocketFail: Device socket failure
 DeviceSocketNoBulkStatus: Device socket failure (bulk)
 DeviceSocketNoHandler: Device socket failure (handler {{query}})
+LatestMCUInstalledError: The latest MCU is already installed on the Device
diff --git a/static/i18n/fr/language.yml b/static/i18n/fr/language.yml
index 1eb9d4d1..0e320439 100644
--- a/static/i18n/fr/language.yml
+++ b/static/i18n/fr/language.yml
@@ -1,3 +1,3 @@
 ---
-en: Anglais
-fr: Français
+en: English
+fr: French
diff --git a/static/i18n/fr/onboarding.yml b/static/i18n/fr/onboarding.yml
index 782ea6db..5c4e0291 100644
--- a/static/i18n/fr/onboarding.yml
+++ b/static/i18n/fr/onboarding.yml
@@ -1,21 +1,24 @@
 ---
+breadcrumb:
+  selectDevice: Select device
+  selectPIN: Choose PIN
+  writeSeed: Recovery phrase
+  genuineCheck: Security check
+  setPassword: Encrypt data
+  analytics: Analytics
 start:
   title: Welcome to Ledger Live
-  startBtn: Get Started
+  startBtn: Get started
 init:
-  title: Welcome to Ledger Live, the computer companion app to your Ledger device
+  title: Get started with your Ledger device
   newDevice:
-    title: Initialize your new Ledger device
-    desc: Please replace it with the final wording once it’s done.
+    title: Initialize a new Ledger device
   restoreDevice:
     title: Restore a Ledger device
-    desc: Please replace it with the final wording once it’s done.
   initializedDevice:
-    title: I have already initialized my device
-    desc: Please replace it with the final wording once it’s done.
+    title: Use a device that's already initialized
   noDevice:
     title: Do not have a Ledger device yet?
-    desc: Please replace it with the final wording once it’s done.
 noDevice:
   title: Do not have a Ledger device yet?
   buyNew:
@@ -25,100 +28,100 @@ noDevice:
   learnMore:
     title: Learn about Ledger Live
 selectDevice:
-  title: To get started, select your device
+  title: Select your device
   ledgerNanoCard:
     title: Ledger Nano S
-    desc: Please replace it with the final wording once it’s done.
   ledgerBlueCard:
     title: Ledger Blue
-    desc: Please replace it with the final wording once it’s done.
 selectPIN:
-  title: Start initialization & choose your PIN code
+  title: Start initialization - Choose your PIN code
   instructions:
     ledgerNano:
       step1: Connect the Ledger Nano S to your computer.
       step2: Press both buttons simultaneously as instructed on the screen.
-      step3: Press the right button to select Configure as new device.
-      step4: Choose a PIN code between 4 and 8 digits long.
+      step3: Press the right button to select Configure as new device?.
+      step4: 'Choose a PIN code between 4 and 8 digits long. Then select the checkmark (✓).'
     ledgerBlue:
       step1: Connect the Ledger Blue to your computer.
       step2: Tap on Configure as new device.
       step3: Choose a PIN code between 4 and 8 digits long.
   disclaimer:
-    note1: Choose your own PIN code. This code unlocks your device.
+    note1: Choose your own PIN code. This code will unlock your device.
     note2: An 8-digit PIN code offers an optimum level of security.
-    note3: Never use a device supplied with a PIN code and/or a 24-word recovery phrase.
+    note3: Never use a device supplied with a PIN code or a 24-word recovery phrase.
 writeSeed:
-  restore:
-    title: Save your recovery phrase
-    desc: Your recovery phrase is formed by 24 words. They will be displayed only once.
-    step1: Press the right button to select the length of your recovery phrase. Press both buttons to confirm.
-    step2: 'Select the first letters of Word #1 by pressing the right or left button. Press both buttons to confirm each letter.'
-    step3: 'Select Word #1 from the suggested words. Press both buttons to continue.'
-    step4: Repeat the process until the last word.
+  title: Save your recovery phrase
+  desc: Your device will generate a recovery phrase of 24 words, displayed only once.
   nano:
-    title: Save your recovery phrase
-    desc: Your recovery phrase is formed by 24 words. They will be displayed only once.
-    step1: 'Copy the first word (Word #1) in position 1 on the blank Recovery sheet.'
+    step1: 'Copy the word displayed below Word #1 in position 1 on a blank Recovery sheet.'
     step2: 'Press the right button to display Word #2 and repeat the process until all 24 words are copied on the Recovery sheet.'
-    step3: Confirm your recovery phrase press both buttons to validate each word displayed on the screen.
-  blue:
-    title: Save your recovery phrase
-    desc: Your recovery phrase is formed by 24 words. They will be displayed only once.
-    step1: Copy each word of the recovery phrase on the blank Recovery sheet. Make sure to copy the words in the same order.
-    step2: Tap NEXT to display the following words. Tap PREVIOUS to go back.
-    step3: Enter the requested words to confirm your recovery phrase.
+    step3: 'Confirm your recovery phrase: select each requested word and press both buttons to validate it.'
+  ledgerBlue:
+    step1: Copy each word of the recovery phrase on a blank Recovery sheet. Copy the words in the same order.
+    step2: Tap Next to move to the next words. Repeat the process until the Confirmation screen appears.
+    step3: Type each requested word to confirm your recovery phrase.
+  restore:
+    title: Enter your recovery phrase
+    desc: Copy the 24-word recovery phrase from your Recovery sheet on your device.
+    nano:
+      step1: Select the length of your recovery phrase. Press both buttons to continue.
+      step2: 'Select the first letters of Word #1 by pressing the right or left button. Press both buttons to confirm each letter.'
+      step3: 'Select Word #1 from the suggested words. Press both buttons to continue.'
+      step4: Repeat the process until the last word.
+    ledgerBlue:
+      step1: Select the length of your recovery phrase.
+      step2: Type the first word of your recovery phrase. Select the word when it appears.
+      step3: Repeat the process until the last word.
   disclaimer:
-    note1: Carefully secure your 24 words out of sight.
-    note2: Ledger does not keep any backup of your 24 words.
-    note3: Make sure you are the sole holder of the 24-word recovery phrase.
-    note4: Never use a device supplied with a recovery phrase and/or a PIN code.
+    note1: Carefully secure your 24-word recovery phrase out of sight.
+    note2: Ledger does not keep any backup of your recovery phrase.
+    note3: Make sure you are the sole holder of your recovery phrase.
+    note4: Never use a device supplied with a recovery phrase or a PIN code.
 genuineCheck:
   title: Final security check
   descNano: Your Ledger Nano S should now display Your device is now ready. Before getting started, please confirm that
-  descBlue: Your Ledger Blue should now display Your device is now ready. Before getting started, please confirm that
+  descBlue:
   steps:
     step1:
       title: Did you choose your PIN code by yourself?
-      desc: This is a long text, please replace it with the final wording once it’s done. Lorem ipsum dolor amet ledger lorem dolor
     step2:
       title: Did you save your recovery phrase by yourself?
-      desc: This is a long text, please replace it with the final wording once it’s done. Lorem ipsum dolor amet ledger lorem dolor
+      desc:
     step3:
       title: Check if your Ledger device is genuine
-      desc: This is a long text, please replace it with the final wording once it’s done. Lorem ipsum dolor amet ledger lorem dolor
-  isGenuinePassed: Your Nano S is genuine
+      desc:
+  isGenuinePassed: 'Genuine'
   buttons:
     genuineCheck: Genuine check
-    contactSupport: Contact Support
+    contactSupport: Ledger Support
   errorPage:
     ledgerNano:
-      title: Something is wrong with your Ledger Nano S
-      desc: A problem occurred with your Ledger Nano S. Contact Ledger Support to get assistance or go back to the security check.
+      title: Oops, something went wrong...
+      desc: Go back to the security check or request Ledger Support assistance.
     ledgerBlue:
-      title: Something is wrong with your Ledger Blue
-      desc: A problem occurred with your Ledger Blue. Contact Ledger Support to get assistance or go back to the security check.
+      title: Oops, something went wrong...
+      desc: Go back to the security check or request Ledger Support assistance.
 setPassword:
-  title: Protect your privacy (optional)
-  desc: Set a password to prevent unauthorized access to Ledger Live data stored on your computer, including account names, balances, transactions and public addresses.
+  title: Encrypt Ledger Live data
+  desc: Enhance your privacy. Set a password to encrypt Ledger Live data stored on your computer, including account names, balances, transactions and public addresses.
   disclaimer:
-    note1: Make sure to remember your password and do not share it.
+    note1: Make sure to remember your password. Do not share it.
     note2: Losing your password requires resetting Ledger Live and re-adding accounts.
-    note3: Loss of password doesn’t affect your crypto-assets.
+    note3: Resetting Ledger Live does not affect your crypto-assets.
+    password: Password
+    confirmPassword: Confirm password
+    skipThisStep: Skip this step
 analytics:
-  title: Help Ledger to improve its products and services
-  desc: This is a long text, please replace it with the final wording once it’s done.
Lorem ipsum dolor amet ledger lorem dolor ipsum amet
+  title: Analytics and bug reports
+  desc: Share anonymous usage and diagnostics data to help improve Ledger products, services and security features.
   shareAnalytics:
-    title: Share analytics
-    desc: Help Ledger improve its products and services by automatically sending diagnostics and usage data.
-  termsConditions:
-    title: Terms and Conditions
-    desc: Please accept terms and conditions to proceed
+    title: Share usage data
+    desc: Enable analytics of anonymous data to help Ledger improve its user's experience. This includes the operating system, language, firmware versions and the number of added accounts.
   sentryLogs:
-    title: Sentry Logs
-    desc: Help Ledger improve its products and services by automatically sending diagnostics and usage data.
+    title: Report bugs
+    desc: Automatically send bug reports to help Ledger developers diagnose issues and improve Ledger Live performance.
 finish:
-  title: This is the title of the screen. 1 line is the maximum
-  desc: This is a long text, please replace it with the final wording once it’s done.
Lorem ipsum dolor amet ledger lorem dolor ipsum amet
-  openAppButton: Open app
-  followUsLabel: Follow us to stay updated
+  title: 'Ready for launch!'
+  desc: The value of crypto assets can go up or down. Balances shown in your portfolio may involve double conversions and are for indicative purposes only!
+  openAppButton: Launch
+  followUsLabel:
diff --git a/static/images/crash-screen.svg b/static/images/crash-screen.svg
new file mode 100644
index 00000000..39fbc9a7
--- /dev/null
+++ b/static/images/crash-screen.svg
@@ -0,0 +1 @@
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diff --git a/static/images/ledgerlive-logo.svg b/static/images/ledgerlive-logo.svg
new file mode 100644
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