diff --git a/BlueComponents.js b/BlueComponents.js
index b4aa92a4..4b9edb18 100644
--- a/BlueComponents.js
+++ b/BlueComponents.js
@@ -313,6 +313,7 @@ export class BlueWalletNavigationHeader extends Component {
             <BluePrivateBalance />
           ) : (
             <Text
+              testID={'WalletBalance'}
               numberOfLines={1}
               adjustsFontSizeToFit
               style={{
@@ -1256,7 +1257,7 @@ export class BlueReceiveButtonIcon extends Component {
 export class BlueSendButtonIcon extends Component {
   render() {
     return (
-      <TouchableOpacity {...this.props}>
+      <TouchableOpacity {...this.props} testID={'SendButton'}>
         <View
           style={{
             flex: 1,
@@ -2075,6 +2076,7 @@ export class BlueAddressInput extends Component {
         }}
       >
         <TextInput
+          testID={'AddressInput'}
           onChangeText={text => {
             this.props.onChangeText(text);
           }}
@@ -2268,6 +2270,7 @@ export class BlueBitcoinAmount extends Component {
           <View style={{ flexDirection: 'row', justifyContent: 'center', paddingTop: 16, paddingBottom: 2 }}>
             <TextInput
               {...this.props}
+              testID={'BitcoinAmountInput'}
               keyboardType="numeric"
               onChangeText={text => {
                 text = text.trim();
diff --git a/screen/send/confirm.js b/screen/send/confirm.js
index 568d3b43..2119b3d4 100644
--- a/screen/send/confirm.js
+++ b/screen/send/confirm.js
@@ -121,6 +121,7 @@ export default class Confirm extends Component {
       <>
         <View style={{ flexDirection: 'row', justifyContent: 'center' }}>
           <Text
+            testID={'TransactionValue'}
             style={{
               color: '#0f5cc0',
               fontSize: 36,
@@ -197,6 +198,7 @@ export default class Confirm extends Component {
               )}
 
               <TouchableOpacity
+                testID={'TransactionDetailsButton'}
                 style={{ marginVertical: 24 }}
                 onPress={async () => {
                   if (this.isBiometricUseCapableAndEnabled) {
diff --git a/screen/send/create.js b/screen/send/create.js
index 07810188..bb380e75 100644
--- a/screen/send/create.js
+++ b/screen/send/create.js
@@ -131,6 +131,7 @@ export default class SendCreate extends Component {
             <BlueCard style={{ alignItems: 'center', flex: 1 }}>
               <BlueText style={{ color: '#0c2550', fontWeight: '500' }}>{loc.send.create.this_is_hex}</BlueText>
               <TextInput
+                testID={'TxhexInput'}
                 style={{
                   borderColor: '#ebebeb',
                   backgroundColor: '#d2f8d6',
diff --git a/screen/send/details.js b/screen/send/details.js
index 601e502c..19f58622 100644
--- a/screen/send/details.js
+++ b/screen/send/details.js
@@ -309,32 +309,6 @@ export default class SendDetails extends Component {
     return (availableBalance === 'NaN' && balance) || availableBalance;
   }
 
-  calculateFee(utxos, txhex, utxoIsInSatoshis) {
-    let index = {};
-    let c = 1;
-    index[0] = 0;
-    for (let utxo of utxos) {
-      if (!utxoIsInSatoshis) {
-        utxo.amount = new BigNumber(utxo.amount).multipliedBy(100000000).toNumber();
-      }
-      index[c] = utxo.amount + index[c - 1];
-      c++;
-    }
-
-    let tx = bitcoin.Transaction.fromHex(txhex);
-    let totalInput = index[tx.ins.length];
-    // ^^^ dumb way to calculate total input. we assume that signer uses utxos sequentially
-    // so total input == sum of yongest used inputs (and num of used inputs is `tx.ins.length`)
-    // TODO: good candidate to refactor and move to appropriate class. some day
-
-    let totalOutput = 0;
-    for (let o of tx.outs) {
-      totalOutput += o.value * 1;
-    }
-
-    return new BigNumber(totalInput - totalOutput).dividedBy(100000000).toNumber();
-  }
-
   async processBIP70Invoice(text) {
     try {
       if (BitcoinBIP70TransactionDecode.matchesPaymentURL(text)) {
@@ -760,7 +734,11 @@ export default class SendDetails extends Component {
   renderCreateButton = () => {
     return (
       <View style={{ marginHorizontal: 56, marginVertical: 16, alignContent: 'center', backgroundColor: '#FFFFFF', minHeight: 44 }}>
-        {this.state.isLoading ? <ActivityIndicator /> : <BlueButton onPress={() => this.createTransaction()} title={'Next'} />}
+        {this.state.isLoading ? (
+          <ActivityIndicator />
+        ) : (
+          <BlueButton onPress={() => this.createTransaction()} title={'Next'} testID={'CreateTransactionButton'} />
+        )}
       </View>
     );
   };
diff --git a/screen/wallets/add.js b/screen/wallets/add.js
index a33d667c..7de3e45d 100644
--- a/screen/wallets/add.js
+++ b/screen/wallets/add.js
@@ -329,6 +329,7 @@ export default class WalletsAdd extends Component {
                 )}
               </View>
               <BlueButtonLink
+                testID="ImportWallet"
                 style={{ marginBottom: 0, marginTop: 24 }}
                 title={loc.wallets.add.import_wallet}
                 onPress={() => {
diff --git a/screen/wallets/import.js b/screen/wallets/import.js
index 9b86d70f..f86ae6bc 100644
--- a/screen/wallets/import.js
+++ b/screen/wallets/import.js
@@ -71,6 +71,7 @@ const WalletsImport = () => {
       <BlueFormLabel>{loc.wallets.import.explanation}</BlueFormLabel>
       <BlueSpacing20 />
       <BlueFormMultiInput
+        testID="MnemonicInput"
         value={importText}
         contextMenuHidden
         onChangeText={setImportText}
@@ -80,6 +81,7 @@ const WalletsImport = () => {
       <BlueSpacing20 />
       <View style={{ flex: 1, alignItems: 'center' }}>
         <BlueButton
+          testID="DoImport"
           disabled={importText.trim().length === 0}
           title={loc.wallets.import.do_import}
           buttonStyle={{
diff --git a/tests/e2e/bluewallet.spec.js b/tests/e2e/bluewallet.spec.js
index 3d58558d..e23f9164 100644
--- a/tests/e2e/bluewallet.spec.js
+++ b/tests/e2e/bluewallet.spec.js
@@ -1,5 +1,8 @@
 /* global it, describe, expect, element, by, waitFor, device */
 
+const bitcoin = require('bitcoinjs-lib');
+const assert = require('assert');
+
 describe('BlueWallet UI Tests', () => {
   it('selftest passes', async () => {
     await waitFor(element(by.id('WalletsList')))
@@ -300,6 +303,78 @@ describe('BlueWallet UI Tests', () => {
     await yo('WalletsList');
     await expect(element(by.id('cr34t3d'))).toBeVisible();
   });
+
+  it('can import BIP84 mnemonic, fetch balance & transactions, then create a transaction', async () => {
+    if (!process.env.HD_MNEMONIC_BIP84) {
+      console.error('process.env.HD_MNEMONIC_BIP84 not set, skipped');
+      return;
+    }
+    await yo('WalletsList');
+
+    // going to Import Wallet screen and importing mnemonic for existing BIP84 wallet with real balance
+    await element(by.id('CreateAWallet')).tap();
+    await element(by.id('ImportWallet')).tap();
+    await element(by.id('MnemonicInput')).typeText(process.env.HD_MNEMONIC_BIP84);
+    try {
+      await element(by.id('DoImport')).tap();
+    } catch (_) {}
+    await sleep(60000);
+    await sup('OK', 3 * 61000); // waiting for wallet import
+    await element(by.text('OK')).tap();
+    // ok, wallet imported
+
+    // lets go inside wallet
+    await element(by.text('Imported HD SegWit (BIP84 Bech32 Native)')).tap();
+    // label might change in the future; see HDSegwitBech32Wallet.typeReadable
+    expect(element(by.id('WalletBalance'))).toHaveText('0.00105526 BTC');
+
+    // lets create real transaction:
+    await element(by.id('SendButton')).tap();
+    await element(by.id('AddressInput')).typeText('bc1q063ctu6jhe5k4v8ka99qac8rcm2tzjjnuktyrl');
+    await element(by.id('BitcoinAmountInput')).typeText('0.0005\n');
+    await sleep(5000);
+    try {
+      await element(by.id('CreateTransactionButton')).tap();
+    } catch (_) {}
+
+    // created. verifying:
+    await yo('TransactionValue');
+    expect(element(by.id('TransactionValue'))).toHaveText('0.0005');
+    await element(by.id('TransactionDetailsButton')).tap();
+
+    // now, a hack to extract element text. warning, this might break in future
+    // @see https://github.com/wix/detox/issues/445
+
+    let txhex = '';
+    try {
+      await expect(element(by.id('TxhexInput'))).toHaveText('_unfoundable_text');
+    } catch (error) {
+      if (device.getPlatform() === 'ios') {
+        const start = `accessibilityLabel was "`;
+        const end = '" on ';
+        const errorMessage = error.message.toString();
+        const [, restMessage] = errorMessage.split(start);
+        const [label] = restMessage.split(end);
+        txhex = label;
+      } else {
+        const start = 'Got:';
+        const end = '}"';
+        const errorMessage = error.message.toString();
+        const [, restMessage] = errorMessage.split(start);
+        const [label] = restMessage.split(end);
+        const value = label.split(',');
+        var combineText = value.find(i => i.includes('text=')).trim();
+        const [, elementText] = combineText.split('=');
+        txhex = elementText;
+      }
+    }
+
+    let transaction = bitcoin.Transaction.fromHex(txhex);
+    assert.strictEqual(transaction.ins.length, 2);
+    assert.strictEqual(transaction.outs.length, 2);
+    assert.strictEqual(bitcoin.address.fromOutputScript(transaction.outs[0].script), 'bc1q063ctu6jhe5k4v8ka99qac8rcm2tzjjnuktyrl'); // to address
+    assert.strictEqual(transaction.outs[0].value, 50000);
+  });
 });
 
 async function sleep(ms) {
@@ -312,6 +387,12 @@ async function yo(id, timeout = 33000) {
     .withTimeout(timeout);
 }
 
+async function sup(text, timeout = 33000) {
+  return waitFor(element(by.text(text)))
+    .toBeVisible()
+    .withTimeout(timeout);
+}
+
 async function helperCreateWallet(walletName) {
   await element(by.id('CreateAWallet')).tap();
   await element(by.id('WalletNameInput')).typeText(walletName || 'cr34t3d');