refactor(legacy): make guardDeviceCommand async with stale TTL refetch

Convert the shared command guard to an async check that refetches
/devices when the cached state is older than 30s, so the isDisconnect
flag reflects reality before a command runs. A TopSnackBar explains the
check only if the fetch takes longer than 400ms, avoiding noise on fast
responses. Update all 44 call sites to await the guard.

modules/legacy/modules/device_management/lib/src/features/activity_meter/presentation/widgets/pedometer_toggle.dart

@@ -39,7 +39,7 @@ class PedometerToggle extends ConsumerWidget {
             value: enabled,
             activeTrackColor: theme.getColorFor(ThemeCode.legacyPrimary),
             onChanged: (value) async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
               final success = await ref
                   .read(activityMeterViewModelProvider.notifier)
                   .togglePedometer(enabled: value);

modules/legacy/modules/device_management/lib/src/features/background_image/presentation/background_image_screen.dart

@@ -97,8 +97,8 @@ class BackgroundImageScreen extends ConsumerWidget {
               child: IconButton(
                 onPressed: state.isSaving
                     ? null
-                    : () {
+                    : () async {
-                        if (!guardDeviceCommand(context, ref)) return;
+                        if (!await guardDeviceCommand(context, ref)) return;
                         vm.uploadPhoto();
                       },
                 icon: Icon(
@@ -119,16 +119,16 @@ class BackgroundImageScreen extends ConsumerWidget {
             ? const Center(child: CircularProgressIndicator())
             : state.photos.isEmpty
             ? _EmptyState(
-                onUpload: () {
+                onUpload: () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.uploadPhoto();
                 },
                 primaryColor: primaryColor,
               )
             : _PhotoGrid(
                 state: state,
-                onPhotoTap: (id) {
+                onPhotoTap: (id) async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.setAsBackground(id);
                 },
                 primaryColor: primaryColor,

modules/legacy/modules/device_management/lib/src/features/contacts/presentation/contacts_screen.dart

@@ -58,8 +58,9 @@ class ContactsScreen extends ConsumerWidget {
         shape: const CircleBorder(),
         child: InkWell(
           customBorder: const CircleBorder(),
-          onTap: () {
+          onTap: () async {
-            if (!guardDeviceCommand(context, ref)) return;
+            if (!await guardDeviceCommand(context, ref)) return;
+            if (!context.mounted) return;
             if (state.contacts.length >= state.maxContacts) {
               showTopSnackbar(
                 context,

modules/legacy/modules/device_management/lib/src/features/do_not_disturb/presentation/do_not_disturb_screen.dart

@@ -155,8 +155,8 @@ class DoNotDisturbScreen extends ConsumerWidget {
         child: isSaving
             ? const Center(child: CircularProgressIndicator())
             : PrimaryButton(
-                onPressed: () {
+                onPressed: () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.save();
                 },
                 text: context.translate(I18n.doNotDisturbSave),

modules/legacy/modules/device_management/lib/src/features/health/presentation/health_screen.dart

@@ -110,7 +110,7 @@ class _HealthScreenState extends ConsumerState<HealthScreen>
                     options: device.capabilities!.heartbeats!.options,
                     theme: theme,
                     onChanged: (frequency) async {
-                      if (!guardDeviceCommand(context, ref)) return;
+                      if (!await guardDeviceCommand(context, ref)) return;
                       final success = await vm.updateHeartRateFrequency(
                         frequency: frequency,
                       );
@@ -199,8 +199,8 @@ class _SaveSection extends ConsumerWidget {
       child: PrimaryButton(
         onPressed: isMeasuring
             ? null
-            : () {
+            : () async {
-                if (!guardDeviceCommand(context, ref)) return;
+                if (!await guardDeviceCommand(context, ref)) return;
                 vm.measure();
               },
         text: isMeasuring ? '...' : context.translate(I18n.measure),

modules/legacy/modules/device_management/lib/src/features/locate_device/presentation/widgets/locate_device_dialog.dart

@@ -90,8 +90,8 @@ class LocateDeviceDialog extends ConsumerWidget {
                 SizedBox(width: SizeUtils.getByScreen(small: 8, big: 16)),
                 Expanded(
                   child: PrimaryButton(
-                    onPressed: () {
+                    onPressed: () async {
-                      if (!guardDeviceCommand(context, ref)) return;
+                      if (!await guardDeviceCommand(context, ref)) return;
                       vm.locateDevice();
                     },
                     text: context.translate(I18n.accept),

modules/legacy/modules/device_management/lib/src/features/remote_connection/presentation/remote_camera_screen.dart

@@ -152,8 +152,8 @@ class _TakePictureSection extends ConsumerWidget {
         big: EdgeInsets.symmetric(vertical: 10, horizontal: 25),
       ),
       child: PrimaryButton(
-        onPressed: () {
+        onPressed: () async {
-          if (!guardDeviceCommand(context, ref)) return;
+          if (!await guardDeviceCommand(context, ref)) return;
           vm.takePicture();
         },
         text: context.translate(I18n.takePicture),

modules/legacy/modules/device_management/lib/src/features/remote_connection/presentation/remote_connection_screen.dart

@@ -33,8 +33,9 @@ class RemoteConnectionScreen extends ConsumerWidget {
             children: [
               if (cameraEnabled) ...[
                 _SectionButton(
-                  onPressed: () {
+                  onPressed: () async {
-                    if (!guardDeviceCommand(context, ref)) return;
+                    if (!await guardDeviceCommand(context, ref)) return;
+                    if (!context.mounted) return;
                     Navigator.push(
                       context,
                       MaterialPageRoute(
@@ -50,8 +51,9 @@ class RemoteConnectionScreen extends ConsumerWidget {
                 SizedBox(height: SizeUtils.getByScreen(small: 16, big: 15)),
               ],
               _SectionButton(
-                onPressed: () {
+                onPressed: () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
+                  if (!context.mounted) return;
                   showDialog(
                     context: context,
                     builder: (context) => Dialog(child: SpyCallDialog()),

modules/legacy/modules/device_management/lib/src/features/remote_connection/presentation/widgets/spy_call_dialog.dart

@@ -77,13 +77,13 @@ class SpyCallDialog extends ConsumerWidget {
             ),
           ),
           SizedBox(height: SizeUtils.getByScreen(small: 12, big: 10)),
-          _PhoneSection(onSubmit: () {
+          _PhoneSection(onSubmit: () async {
-            if (!guardDeviceCommand(context, ref)) return;
+            if (!await guardDeviceCommand(context, ref)) return;
             vm.call();
           }),
           SizedBox(height: SizeUtils.getByScreen(small: 28, big: 27)),
-          _CallSection(onPressed: () {
+          _CallSection(onPressed: () async {
-            if (!guardDeviceCommand(context, ref)) return;
+            if (!await guardDeviceCommand(context, ref)) return;
             vm.call();
           }),
         ],

modules/legacy/modules/device_management/lib/src/features/scheduled_activities/presentation/scheduled_activities_screen.dart

@@ -104,8 +104,9 @@ class _ScheduledActivitiesScreenState
         shape: const CircleBorder(),
         child: InkWell(
           customBorder: const CircleBorder(),
-          onTap: () {
+          onTap: () async {
-            if (!guardDeviceCommand(context, ref)) return;
+            if (!await guardDeviceCommand(context, ref)) return;
+            if (!context.mounted) return;
             showActivityFormSheet(context, weekDay: _selectedWeekDay);
           },
           child: SizedBox(

modules/legacy/modules/device_management/lib/src/features/scheduled_activities/presentation/widgets/activity_form_sheet.dart

@@ -97,9 +97,10 @@ class _ActivityFormSheetState extends ConsumerState<ActivityFormSheet> {
     });
   }
 
-  void _submit() {
+  Future<void> _submit() async {
     if (!_isFormValid) return;
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
+    if (!mounted) return;
 
     final name = _nameController.text.trim();
     final period = _buildPeriod();

modules/legacy/modules/device_management/lib/src/features/scheduled_activities/presentation/widgets/day_timeline.dart

@@ -188,8 +188,9 @@ class _ActivityTimelineCard extends ConsumerWidget {
             ),
           ),
           IconButton(
-            onPressed: () {
+            onPressed: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
+              if (!context.mounted) return;
               showActivityFormSheet(context, activity: activity);
             },
             icon: Icon(
@@ -201,8 +202,9 @@ class _ActivityTimelineCard extends ConsumerWidget {
             padding: EdgeInsets.all(SizeUtils.getByScreen(small: 8, big: 6)),
           ),
           IconButton(
-            onPressed: () {
+            onPressed: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
+              if (!context.mounted) return;
               showDialog(
                 context: context,
                 builder: (_) => Dialog(

modules/legacy/modules/device_management/lib/src/features/volume_control/presentation/volume_control_screen.dart

@@ -81,8 +81,8 @@ class VolumeControlScreen extends ConsumerWidget {
         child: state.isLoading
             ? const Center(child: CircularProgressIndicator())
             : PrimaryButton(
-                onPressed: () {
+                onPressed: () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.submit();
                 },
                 text: context.translate(I18n.volumeSend),

modules/legacy/modules/location/lib/src/features/location/presentation/widgets/create_frequent_place_sheet.dart

@@ -75,7 +75,7 @@ class _FrequentPlaceSheetState extends ConsumerState<_FrequentPlaceSheet> {
 
   Future<void> _submit() async {
     if (!_canSave) return;
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
 
     final vm = ref.read(locationViewModelProvider.notifier);
     final bool success;

modules/legacy/modules/location/lib/src/features/location/presentation/widgets/create_geofence_sheet.dart

@@ -91,7 +91,7 @@ class _GeofenceSheetState extends ConsumerState<_GeofenceSheet> {
 
   Future<void> _submit() async {
     if (!_canSave) return;
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
 
     final vm = ref.read(locationViewModelProvider.notifier);
     final description = _descriptionController.text.trim();

modules/legacy/modules/location/lib/src/features/location/presentation/widgets/location_map.dart

@@ -237,7 +237,7 @@ class _LocationMapState extends ConsumerState<LocationMap>
   }
 
   Future<void> _updateFrequency(int frequency) async {
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
     final success = await ref
         .read(locationViewModelProvider.notifier)
         .updateLocationFrequency(frequency: frequency);
@@ -264,8 +264,9 @@ class _LocationMapState extends ConsumerState<LocationMap>
     }
   }
 
-  void _confirmPlacement() {
+  Future<void> _confirmPlacement() async {
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
+    if (!mounted) return;
     final center = _mapController.camera.center;
     final mapState = ref.read(locationMapViewModelProvider);
 
@@ -289,8 +290,9 @@ class _LocationMapState extends ConsumerState<LocationMap>
     }
   }
 
-  void _confirmRadius() {
+  Future<void> _confirmRadius() async {
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
+    if (!mounted) return;
     final mapState = ref.read(locationMapViewModelProvider);
     final point = mapState.previewPoint!;
     final radius = mapState.previewRadius;
@@ -414,8 +416,9 @@ class _LocationMapState extends ConsumerState<LocationMap>
     }
   }
 
-  void _onEditFrequentPlace(FrequentPlaceEntity fp) {
+  Future<void> _onEditFrequentPlace(FrequentPlaceEntity fp) async {
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
+    if (!mounted) return;
     _vm.clearSelectedFrequentPlace();
     showNameInputSheet(
       context,
@@ -673,12 +676,13 @@ class _LocationMapState extends ConsumerState<LocationMap>
           onAddGeofence: () => _vm.startPlacing(PlacingMode.geofence),
           onAddFrequentPlace: () => _vm.startPlacing(PlacingMode.frequentPlace),
           onShareTap: _shareLocation,
-          onRefreshTap: () {
+          onRefreshTap: () async {
-            if (!guardDeviceCommand(context, ref)) return;
+            if (!await guardDeviceCommand(context, ref)) return;
             unawaited(
               ref.read(sfTrackingProvider).legacyLocationMapRefreshTapped(),
             );
             widget.onRefreshPosition();
+            if (!mounted) return;
             showTopSnackbar(
               context,
               message: context.translate(I18n.locationMapRefreshRequested),
@@ -686,9 +690,9 @@ class _LocationMapState extends ConsumerState<LocationMap>
             );
           },
           onCenterTap: _centerOnDevice,
-          onToggleFollow: () {
+          onToggleFollow: () async {
             final willActivate = !mapState.isFollowing;
-            if (willActivate && !guardDeviceCommand(context, ref)) return;
+            if (willActivate && !await guardDeviceCommand(context, ref)) return;
             _vm.toggleFollowing();
             unawaited(
               ref
@@ -698,6 +702,7 @@ class _LocationMapState extends ConsumerState<LocationMap>
             if (willActivate && widget.selectedPosition != null) {
               _centerOnDevice();
             }
+            if (!mounted) return;
             showTopSnackbar(
               context,
               message: context.translate(
@@ -721,12 +726,12 @@ class _LocationMapState extends ConsumerState<LocationMap>
           child: GeofenceInfoCard(
             geofence: mapState.selectedGeofence!,
             onClose: _vm.clearSelectedGeofence,
-            onEdit: () {
+            onEdit: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
               _vm.startEditingGeofence(mapState.selectedGeofence!);
             },
-            onDelete: () {
+            onDelete: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
               final id = mapState.selectedGeofence!.id;
               _vm.clearSelectedGeofence();
               ref
@@ -742,8 +747,8 @@ class _LocationMapState extends ConsumerState<LocationMap>
             frequentPlace: mapState.selectedFrequentPlace!,
             onClose: _vm.clearSelectedFrequentPlace,
             onEdit: () => _onEditFrequentPlace(mapState.selectedFrequentPlace!),
-            onDelete: () {
+            onDelete: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
               final id = mapState.selectedFrequentPlace!.id;
               _vm.clearSelectedFrequentPlace();
               ref

modules/legacy/modules/settings/lib/src/features/alarm/presentation/alarm_screen.dart

@@ -92,8 +92,9 @@ class AlarmScreen extends ConsumerWidget {
                   shape: BoxShape.circle,
                 ),
                 child: IconButton(
-                  onPressed: () {
+                  onPressed: () async {
-                    if (!guardDeviceCommand(context, ref)) return;
+                    if (!await guardDeviceCommand(context, ref)) return;
+                    if (!context.mounted) return;
                     _openForm(context, vm);
                   },
                   icon: Icon(
@@ -126,8 +127,8 @@ class AlarmScreen extends ConsumerWidget {
               child: isSaving
                   ? const Center(child: CircularProgressIndicator())
                   : PrimaryButton(
-                      onPressed: () {
+                      onPressed: () async {
-                        if (!guardDeviceCommand(context, ref)) return;
+                        if (!await guardDeviceCommand(context, ref)) return;
                         vm.save();
                       },
                       text: context.translate(I18n.alarmSave),

modules/legacy/modules/settings/lib/src/features/alerts/presentation/alerts_screen.dart

@@ -81,8 +81,8 @@ class AlertsScreen extends ConsumerWidget {
         child: PrimaryButton(
           onPressed: state.isSaving
               ? null
-              : () {
+              : () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.save();
                 },
           text: state.isSaving ? '...' : context.translate(I18n.save),

modules/legacy/modules/settings/lib/src/features/battery/presentation/battery_screen.dart

@@ -99,8 +99,8 @@ class BatteryScreen extends ConsumerWidget {
                           activeTrackColor: primaryColor,
                           onChanged: state.isSaving
                               ? null
-                              : (value) {
+                              : (value) async {
-                                  if (!guardDeviceCommand(context, ref)) return;
+                                  if (!await guardDeviceCommand(context, ref)) return;
                                   vm.toggleNightMode(value);
                                 },
                         ),

modules/legacy/modules/settings/lib/src/features/block_phone/presentation/block_phone_screen.dart

@@ -84,8 +84,9 @@ class BlockPhoneScreen extends ConsumerWidget {
                 shape: BoxShape.circle,
               ),
               child: IconButton(
-                onPressed: () {
+                onPressed: () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
+                  if (!context.mounted) return;
                   showAddContactSheet(context);
                 },
                 icon: Icon(
@@ -216,13 +217,14 @@ class _ContactList extends ConsumerWidget {
     );
   }
 
-  void _confirmDelete(
+  Future<void> _confirmDelete(
     BuildContext context,
     WidgetRef ref,
     int index,
     String name,
-  ) {
+  ) async {
-    if (!guardDeviceCommand(context, ref)) return;
+    if (!await guardDeviceCommand(context, ref)) return;
+    if (!context.mounted) return;
     final theme = ref.read(themePortProvider);
     final primaryColor = theme.getColorFor(ThemeCode.legacyPrimary);
 

modules/legacy/modules/settings/lib/src/features/disable_functions/presentation/disable_functions_screen.dart

@@ -78,8 +78,8 @@ class DisableFunctionsScreen extends ConsumerWidget {
         child: PrimaryButton(
           onPressed: state.isSaving
               ? null
-              : () {
+              : () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.save();
                 },
           text: state.isSaving ? '...' : context.translate(I18n.save),

modules/legacy/modules/settings/lib/src/features/language/presentation/language_screen.dart

@@ -110,8 +110,8 @@ class _SaveSection extends ConsumerWidget {
       child: isLoading
           ? const Center(child: CircularProgressIndicator())
           : PrimaryButton(
-              onPressed: () {
+              onPressed: () async {
-                if (!guardDeviceCommand(context, ref)) return;
+                if (!await guardDeviceCommand(context, ref)) return;
                 vm.submit();
               },
               text: context.translate(I18n.save),

modules/legacy/modules/settings/lib/src/features/remote_management/presentation/remote_management_screen.dart

@@ -51,8 +51,9 @@ class _OptionsSection extends ConsumerWidget {
             title: context.translate(I18n.remoteTurnOff),
             subtitle: context.translate(I18n.remoteTurnOffMessage),
             icon: Icons.settings_power_outlined,
-            onPressed: () {
+            onPressed: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
+              if (!context.mounted) return;
               showDialog(
                 context: context,
                 builder: (context) => Dialog(
@@ -95,8 +96,9 @@ class _OptionsSection extends ConsumerWidget {
             title: context.translate(I18n.remoteRestart),
             subtitle: context.translate(I18n.remoteRestartMessage),
             icon: Icons.refresh_outlined,
-            onPressed: () {
+            onPressed: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
+              if (!context.mounted) return;
               showDialog(
                 context: context,
                 builder: (context) => Dialog(
@@ -117,8 +119,9 @@ class _OptionsSection extends ConsumerWidget {
             title: context.translate(I18n.remoteFactoryReset),
             subtitle: context.translate(I18n.remoteFactoryResetMessage),
             icon: Icons.restart_alt_outlined,
-            onPressed: () {
+            onPressed: () async {
-              if (!guardDeviceCommand(context, ref)) return;
+              if (!await guardDeviceCommand(context, ref)) return;
+              if (!context.mounted) return;
               showDialog(
                 context: context,
                 builder: (context) => Dialog(

modules/legacy/modules/settings/lib/src/features/sound/presentation/sound_screen.dart

@@ -177,8 +177,8 @@ class _SaveSection extends ConsumerWidget {
     return Padding(
       padding: EdgeInsets.symmetric(horizontal: 24, vertical: 12),
       child: PrimaryButton(
-        onPressed: () {
+        onPressed: () async {
-          if (!guardDeviceCommand(context, ref)) return;
+          if (!await guardDeviceCommand(context, ref)) return;
           vm.submit();
         },
         text: context.translate(I18n.save),

modules/legacy/modules/settings/lib/src/features/timezone/presentation/timezone_screen.dart

@@ -96,8 +96,8 @@ class TimezoneScreen extends ConsumerWidget {
         child: PrimaryButton(
           onPressed: state.isSaving
               ? null
-              : () {
+              : () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.save();
                 },
           text: state.isSaving ? '...' : context.translate(I18n.save),

modules/legacy/modules/settings/lib/src/features/wifi_settings/presentation/wifi_settings_screen.dart

@@ -94,8 +94,8 @@ class WifiSettingsScreen extends ConsumerWidget {
                 shape: BoxShape.circle,
               ),
               child: IconButton(
-                onPressed: () {
+                onPressed: () async {
-                  if (!guardDeviceCommand(context, ref)) return;
+                  if (!await guardDeviceCommand(context, ref)) return;
                   vm.scanNetworks();
                 },
                 icon: Icon(
@@ -275,8 +275,13 @@ class _Body extends ConsumerWidget {
     );
   }
 
-  void _confirmDelete(BuildContext context, WidgetRef ref, dynamic network) {
+  Future<void> _confirmDelete(
-    if (!guardDeviceCommand(context, ref)) return;
+    BuildContext context,
+    WidgetRef ref,
+    dynamic network,
+  ) async {
+    if (!await guardDeviceCommand(context, ref)) return;
+    if (!context.mounted) return;
     final theme = ref.read(themePortProvider);
     final primaryColor = theme.getColorFor(ThemeCode.legacyPrimary);
 

modules/legacy/packages/legacy_shared/lib/src/utils/device_command_guard.dart

@@ -1,12 +1,36 @@
+import 'dart:async';
+
 import 'package:design_system/design_system.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:sf_localizations/sf_localizations.dart';
 import 'package:sf_shared/sf_shared.dart';
 
-bool guardDeviceCommand(BuildContext context, WidgetRef ref) {
+const _deviceConnectionTtl = Duration(seconds: 30);
-  final device = ref.read(selectedDeviceProvider).value;
+const _snackbarDelay = Duration(milliseconds: 400);
+
+Future<bool> guardDeviceCommand(BuildContext context, WidgetRef ref) async {
+  final notifier = ref.read(legacyDevicesProvider.notifier);
+
+  if (notifier.isStale(_deviceConnectionTtl)) {
+    final fetchFuture = notifier.refreshIfStale(_deviceConnectionTtl);
+    final delayedSnackbar = Timer(_snackbarDelay, () {
+      if (!context.mounted) return;
+      showTopSnackbar(
+        context,
+        message: context.translate(I18n.checkingDeviceConnection),
+        type: MessageType.info,
+      );
+    });
+    await fetchFuture;
+    delayedSnackbar.cancel();
+  }
+
+  if (!context.mounted) return false;
+
+  final device = await ref.read(selectedDeviceProvider.future);
   if (device == null || device.isDisconnected) {
+    if (!context.mounted) return false;
     showTopSnackbar(
       context,
       message: context.translate(I18n.errorDeviceDisconnected),

packages/sf_localizations/assets/l10n/de.json

@@ -691,6 +691,7 @@
   "errorContactsMax": "Maximale Kontaktanzahl für dieses Gerät erreicht",
   "errorPositions": "Positionen konnten nicht geladen werden",
   "errorDeviceDisconnected": "Die Uhr ist getrennt und kann keine Befehle empfangen",
+  "checkingDeviceConnection": "Verbindung des Geräts wird überprüft...",
   "errorSosContactsMax": "Maximale SOS-Kontaktanzahl für dieses Gerät erreicht",
   "customBackground": "Benutzerdefiniertes Hintergrundbild",
   "backgroundImageDescription": "Legen Sie ein Foto als benutzerdefinierten Bildschirmschoner für das Gerät fest",

packages/sf_localizations/assets/l10n/en.json

@@ -859,6 +859,7 @@
   "errorContactsMax": "Maximum contacts reached for this device",
   "errorPositions": "Could not load positions",
   "errorDeviceDisconnected": "The watch is disconnected and cannot receive commands",
+  "checkingDeviceConnection": "Checking if the device is connected...",
   "errorSosContactsMax": "Maximum SOS contacts reached for this device",
   "customBackground": "Custom background image",
   "backgroundImageDescription": "Set a photo as a custom screensaver for the device",

packages/sf_localizations/assets/l10n/es.json

@@ -860,6 +860,7 @@
   "errorContactsMax": "Se ha alcanzado el máximo de contactos para este dispositivo",
   "errorPositions": "No se pudieron cargar las posiciones",
   "errorDeviceDisconnected": "El reloj está desconectado y no puede recibir comandos",
+  "checkingDeviceConnection": "Revisando si el dispositivo está conectado...",
   "errorSosContactsMax": "Se ha alcanzado el máximo de contactos SOS para este dispositivo",
   "customBackground": "Fondo de pantalla personalizado",
   "backgroundImageDescription": "Configura una foto como protector de pantalla exclusivo para el dispositivo",

packages/sf_localizations/assets/l10n/fr.json

@@ -691,6 +691,7 @@
   "errorContactsMax": "Nombre maximum de contacts atteint pour cet appareil",
   "errorPositions": "Impossible de charger les positions",
   "errorDeviceDisconnected": "La montre est déconnectée et ne peut pas recevoir de commandes",
+  "checkingDeviceConnection": "Vérification de la connexion de l'appareil...",
   "errorSosContactsMax": "Nombre maximum de contacts SOS atteint pour cet appareil",
   "customBackground": "Image de fond personnalisée",
   "backgroundImageDescription": "Définissez une photo comme écran de veille personnalisé pour l'appareil",

packages/sf_localizations/assets/l10n/it.json

@@ -691,6 +691,7 @@
   "errorContactsMax": "Numero massimo di contatti raggiunto per questo dispositivo",
   "errorPositions": "Impossibile caricare le posizioni",
   "errorDeviceDisconnected": "L'orologio è disconnesso e non può ricevere comandi",
+  "checkingDeviceConnection": "Verifica della connessione del dispositivo...",
   "errorSosContactsMax": "Numero massimo di contatti SOS raggiunto per questo dispositivo",
   "customBackground": "Immagine di sfondo personalizzata",
   "backgroundImageDescription": "Imposta una foto come screensaver personalizzato per il dispositivo",

packages/sf_localizations/assets/l10n/pt.json

@@ -691,6 +691,7 @@
   "errorContactsMax": "Número máximo de contactos atingido para este dispositivo",
   "errorPositions": "Não foi possível carregar as posições",
   "errorDeviceDisconnected": "O relógio está desconectado e não pode receber comandos",
+  "checkingDeviceConnection": "A verificar se o dispositivo está conectado...",
   "errorSosContactsMax": "Número máximo de contactos SOS atingido para este dispositivo",
   "customBackground": "Imagem de fundo personalizada",
   "backgroundImageDescription": "Defina uma foto como protetor de ecrã personalizado para o dispositivo",

packages/sf_localizations/lib/src/generated/i18n.dart

@@ -395,6 +395,7 @@ class I18n {
   static const String errorContactsMax = 'errorContactsMax';
   static const String errorPositions = 'errorPositions';
   static const String errorDeviceDisconnected = 'errorDeviceDisconnected';
+  static const String checkingDeviceConnection = 'checkingDeviceConnection';
   static const String errorSosContactsMax = 'errorSosContactsMax';
   static const String errorContactsMin = 'errorContactsMin';
   static const String errorDisableFunctions = 'errorDisableFunctions';

packages/sf_shared/lib/src/providers/legacy_devices_provider.dart

@@ -2,9 +2,13 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:sf_shared/sf_shared.dart';
 
 class LegacyDevices extends AsyncNotifier<List<DeviceEntity>> {
+  DateTime? _lastFetchedAt;
+
   @override
-  Future<List<DeviceEntity>> build() {
+  Future<List<DeviceEntity>> build() async {
-    return ref.read(sharedDevicesRepositoryProvider).getDevices();
+    final devices = await ref.read(sharedDevicesRepositoryProvider).getDevices();
+    _lastFetchedAt = DateTime.now();
+    return devices;
   }
 
   void removeDevice(String deviceId) {
@@ -30,6 +34,21 @@ class LegacyDevices extends AsyncNotifier<List<DeviceEntity>> {
     state = await AsyncValue.guard(
       () => ref.read(sharedDevicesRepositoryProvider).getDevices(),
     );
+    _lastFetchedAt = DateTime.now();
+  }
+
+  bool isStale(Duration ttl) {
+    final last = _lastFetchedAt;
+    return last == null || DateTime.now().difference(last) >= ttl;
+  }
+
+  Future<void> refreshIfStale(Duration ttl) async {
+    if (!isStale(ttl)) return;
+    final result = await AsyncValue.guard(
+      () => ref.read(sharedDevicesRepositoryProvider).getDevices(),
+    );
+    state = result;
+    _lastFetchedAt = DateTime.now();
   }
 }