gui: fix a misleading tooltip on hw connection error

The error may not be due to an unsupported version. For instance the
device may just be locked. In these cases telling the user to update
their device is very misleading.

Fixes #418.

gui/ui/src/component/hw.rs

@@ -213,7 +213,7 @@ pub fn unsupported_hardware_wallet<'a, T: 'a, K: Display, V: Display>(
             column(vec![
                 Row::new()
                     .spacing(5)
-                    .push(text("Unsupported version").bold())
+                    .push(text("Connection error").bold())
                     .into(),
                 Row::new()
                     .spacing(5)
@@ -225,7 +225,7 @@ pub fn unsupported_hardware_wallet<'a, T: 'a, K: Display, V: Display>(
             .into(),
             tooltip::Tooltip::new(
                 icon::warning_icon(),
-                "Please update the application on your device",
+                "Make sure your device is unlocked and a supported Bitcoin application is opened.",
                 tooltip::Position::Bottom,
             )
             .style(theme::Container::Card(theme::Card::Simple))