diff --git a/gui/kivy/main_window.py b/gui/kivy/main_window.py
index 5e9f09e15..6dbb55e65 100644
--- a/gui/kivy/main_window.py
+++ b/gui/kivy/main_window.py
@@ -267,6 +267,11 @@ class ElectrumWindow(App):
         self.switch_to('receive')
         self.receive_screen.screen.address = addr
 
+    def qr_dialog(self, title, data):
+        from uix.dialogs.qr_dialog import QRDialog
+        popup = QRDialog(title, data)
+        popup.open()
+
     def scan_qr(self, on_complete):
         if platform != 'android':
             return
diff --git a/gui/kivy/uix/dialogs/qr_dialog.py b/gui/kivy/uix/dialogs/qr_dialog.py
new file mode 100644
index 000000000..893e751a2
--- /dev/null
+++ b/gui/kivy/uix/dialogs/qr_dialog.py
@@ -0,0 +1,36 @@
+from kivy.factory import Factory
+from kivy.lang import Builder
+
+Builder.load_string('''
+<QRDialog@Popup>
+    id: popup
+    title: ''
+    shaded: False
+    AnchorLayout:
+        anchor_x: 'center'
+        BoxLayout:
+            orientation: 'vertical'
+            size_hint: 1, 1
+            QRCodeWidget:
+                id: qr
+            Widget:
+                size_hint: 1, 0.2
+            BoxLayout:
+                size_hint: 1, None
+                height: '48dp'
+                Widget:
+                    size_hint: 1, None
+                    height: '48dp'
+                Button:
+                    size_hint: 1, None
+                    height: '48dp'
+                    text: _('Close')
+                    on_release:
+                        popup.dismiss()
+''')
+
+class QRDialog(Factory.Popup):
+    def __init__(self, title, data):
+        Factory.Popup.__init__(self)
+        self.title = title
+        self.ids.qr.set_data(data)
diff --git a/gui/kivy/uix/qrcodewidget.py b/gui/kivy/uix/qrcodewidget.py
index 03e0866d9..13be5a01f 100644
--- a/gui/kivy/uix/qrcodewidget.py
+++ b/gui/kivy/uix/qrcodewidget.py
@@ -111,7 +111,7 @@ class QRCodeWidget(FloatLayout):
     def _upd_texture(self, buff):
         texture = self._qrtexture
         texture.blit_buffer(buff, colorfmt='rgb', bufferfmt='ubyte')
-        img =self.ids.qrimage
+        img = self.ids.qrimage
         img.anim_delay = -1
         img.texture = texture
         img.canvas.ask_update()
diff --git a/gui/kivy/uix/screens.py b/gui/kivy/uix/screens.py
index 92dbd4f7d..7b15e0035 100644
--- a/gui/kivy/uix/screens.py
+++ b/gui/kivy/uix/screens.py
@@ -133,12 +133,12 @@ class HistoryScreen(CScreen):
 
             label = self.app.wallet.get_label(tx_hash) if tx_hash else _('Pruned transaction outputs')
             date = timestamp_to_datetime(timestamp)
-            rate = run_hook('history_rate', date)
-            if self.app.fiat_unit:
-                s = run_hook('historical_value_str', value, date)
-                quote_text = "..." if s is None else s + ' ' + self.app.fiat_unit
-            else:
-                quote_text = ''
+            quote_text = ''
+            if self.app.fiat_unit and date:
+                rate = run_hook('history_rate', date)
+                if rate:
+                    s = run_hook('value_str', value, rate)
+                    quote_text = '' if s is None else s + ' ' + self.app.fiat_unit
             yield (conf, icon, time_str, label, value, tx_hash, quote_text)
 
     def update(self, see_all=False):
@@ -273,7 +273,10 @@ class SendScreen(CScreen):
             self.app.show_error(str(e))
             return
         if not tx.is_complete():
-            self.app.show_info("Transaction is not complete")
+            from electrum.bitcoin import base_encode
+            text = str(tx).decode('hex')
+            text = base_encode(text, base=43)
+            self.app.qr_dialog(_("Unsigned Transaction"), text)
             return
         # broadcast
         ok, txid = self.app.wallet.sendtx(tx)
diff --git a/plugins/exchange_rate/exchange_rate.py b/plugins/exchange_rate/exchange_rate.py
index 1283355ab..03cac3eff 100644
--- a/plugins/exchange_rate/exchange_rate.py
+++ b/plugins/exchange_rate/exchange_rate.py
@@ -388,6 +388,7 @@ class FxPlugin(BasePlugin, ThreadJob):
     def requires_settings(self):
         return True
 
+    @hook
     def value_str(self, satoshis, rate):
         if satoshis is None:  # Can happen with incomplete history
             return _("Unknown")