qt "Wallet Info" dialog: show bip32 root fingerprint

and also show it in DeviceMgr.select_device

follow-up 998cd0d356

electrum/gui/qt/main_window.py

@@ -2817,20 +2817,27 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, Logger):
                 mpk_text.setMaximumHeight(150)
                 mpk_text.addCopyButton()
                 run_hook('show_xpub_button', mpk_text, ks)
+                ks_vbox.addWidget(WWLabel(_("Master Public Key")))
+                ks_vbox.addWidget(mpk_text)
 
                 der_path_hbox = QHBoxLayout()
                 der_path_hbox.setContentsMargins(0, 0, 0, 0)
-
                 der_path_hbox.addWidget(WWLabel(_("Derivation path") + ':'))
                 der_path_text = WWLabel(ks.get_derivation_prefix() or _("unknown"))
                 der_path_text.setTextInteractionFlags(Qt.TextSelectableByMouse)
                 der_path_hbox.addWidget(der_path_text)
                 der_path_hbox.addStretch()
-
-                ks_vbox.addWidget(WWLabel(_("Master Public Key")))
-                ks_vbox.addWidget(mpk_text)
                 ks_vbox.addLayout(der_path_hbox)
 
+                bip32fp_hbox = QHBoxLayout()
+                bip32fp_hbox.setContentsMargins(0, 0, 0, 0)
+                bip32fp_hbox.addWidget(QLabel("BIP32 root fingerprint:"))
+                bip32fp_text = WWLabel(ks.get_root_fingerprint() or _("unknown"))
+                bip32fp_text.setTextInteractionFlags(Qt.TextSelectableByMouse)
+                bip32fp_hbox.addWidget(bip32fp_text)
+                bip32fp_hbox.addStretch()
+                ks_vbox.addLayout(bip32fp_hbox)
+
                 ks_stack.addWidget(ks_w)
 
             select_ks(0)

electrum/plugin.py

@@ -632,9 +632,11 @@ class DeviceMgr(ThreadJob):
             if not allow_user_interaction:
                 raise CannotAutoSelectDevice()
             msg = _('Please insert your {}').format(plugin.device)
+            msg += " ("
             if keystore.label and keystore.label not in PLACEHOLDER_HW_CLIENT_LABELS:
-                msg += ' ({})'.format(keystore.label)
-            msg += '. {}\n\n{}'.format(
+                msg += f"label: {keystore.label}, "
+            msg += f"bip32 root fingerprint: {keystore.get_root_fingerprint()!r}"
+            msg += ').\n\n{}\n\n{}'.format(
                 _('Verify the cable is connected and that '
                   'no other application is using it.'),
                 _('Try to connect again?')