diff --git a/plugins/hw_wallet/cmdline.py b/plugins/hw_wallet/cmdline.py
index bbf547d68..de29780c7 100644
--- a/plugins/hw_wallet/cmdline.py
+++ b/plugins/hw_wallet/cmdline.py
@@ -1,5 +1,6 @@
 from electrum.util import print_msg, print_error, raw_input
 
+
 class CmdLineHandler:
 
     def get_passphrase(self, msg, confirm):
@@ -12,7 +13,10 @@ class CmdLineHandler:
         print_msg(msg)
         print_msg("a b c\nd e f\ng h i\n-----")
         o = raw_input()
-        return ''.join(map(lambda x: t[x], o))
+        try:
+            return ''.join(map(lambda x: t[x], o))
+        except KeyError as e:
+            raise Exception("Character {} not in matrix!".format(e)) from e
 
     def prompt_auth(self, msg):
         import getpass
@@ -36,7 +40,7 @@ class CmdLineHandler:
         print_msg(msg)
 
     def update_status(self, b):
-        print_error('trezor status', b)
+        print_error('hw device status', b)
 
     def finished(self):
         pass
diff --git a/plugins/keepkey/qt.py b/plugins/keepkey/qt.py
index 9aa4f2539..6ad9fe8fc 100644
--- a/plugins/keepkey/qt.py
+++ b/plugins/keepkey/qt.py
@@ -4,15 +4,17 @@ import threading
 from PyQt5.Qt import Qt
 from PyQt5.Qt import QGridLayout, QInputDialog, QPushButton
 from PyQt5.Qt import QVBoxLayout, QLabel
-from electrum_gui.qt.util import *
-from .keepkey import KeepKeyPlugin, TIM_NEW, TIM_RECOVER, TIM_MNEMONIC
-from ..hw_wallet.qt import QtHandlerBase, QtPluginBase
 
+from electrum_gui.qt.util import *
 from electrum.i18n import _
 from electrum.plugins import hook, DeviceMgr
 from electrum.util import PrintError, UserCancelled, bh2u
 from electrum.wallet import Wallet, Standard_Wallet
 
+from ..hw_wallet.qt import QtHandlerBase, QtPluginBase
+from .keepkey import KeepKeyPlugin, TIM_NEW, TIM_RECOVER, TIM_MNEMONIC
+
+
 PASSPHRASE_HELP_SHORT =_(
     "Passphrases allow you to access new wallets, each "
     "hidden behind a particular case-sensitive passphrase.")
diff --git a/plugins/trezor/qt.py b/plugins/trezor/qt.py
index a11f86e10..fd32b5d42 100644
--- a/plugins/trezor/qt.py
+++ b/plugins/trezor/qt.py
@@ -4,15 +4,17 @@ import threading
 from PyQt5.Qt import Qt
 from PyQt5.Qt import QGridLayout, QInputDialog, QPushButton
 from PyQt5.Qt import QVBoxLayout, QLabel
-from electrum_gui.qt.util import *
-from .trezor import TrezorPlugin, TIM_NEW, TIM_RECOVER, TIM_MNEMONIC
-from ..hw_wallet.qt import QtHandlerBase, QtPluginBase
 
+from electrum_gui.qt.util import *
 from electrum.i18n import _
 from electrum.plugins import hook, DeviceMgr
 from electrum.util import PrintError, UserCancelled, bh2u
 from electrum.wallet import Wallet, Standard_Wallet
 
+from ..hw_wallet.qt import QtHandlerBase, QtPluginBase
+from .trezor import TrezorPlugin, TIM_NEW, TIM_RECOVER, TIM_MNEMONIC
+
+
 PASSPHRASE_HELP_SHORT =_(
     "Passphrases allow you to access new wallets, each "
     "hidden behind a particular case-sensitive passphrase.")