diff --git a/lib/features/common/packages/bluetooth/blueberry_ring/domain/blueberry_ring_use_case.dart b/lib/features/common/packages/bluetooth/blueberry_ring/domain/blueberry_ring_use_case.dart
index 250f933c..49cb2571 100644
--- a/lib/features/common/packages/bluetooth/blueberry_ring/domain/blueberry_ring_use_case.dart
+++ b/lib/features/common/packages/bluetooth/blueberry_ring/domain/blueberry_ring_use_case.dart
@@ -166,7 +166,7 @@ class BlueberryRingUseCase extends ReactiveUseCase {
         final command = BlueberryCommands.readLevel();
         collectLog('readLevel:command $command');
         blueberryRingCharacteristic.value?.write(command);
-        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.first;
+        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.firstWhere((element) => element.isNotEmpty);
         collectLog('readLevel:value $value');
         collectLog('readLevel:lastValue ${blueberryRingNotificationsCharacteristic.value!.lastValue}');
         return BlueberryResolves.readLevel(Uint8List.fromList(value!));
@@ -180,7 +180,7 @@ class BlueberryRingUseCase extends ReactiveUseCase {
         final command = BlueberryCommands.readVersion();
         collectLog('readVersion:command $command');
         blueberryRingCharacteristic.value?.write(command);
-        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.first;
+        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.firstWhere((element) => element.isNotEmpty);
         collectLog('readVersion:value $value');
         collectLog('readLevel:lastValue ${blueberryRingNotificationsCharacteristic.value!.lastValue}');
         return BlueberryResolves.readVersion(Uint8List.fromList(value!));
@@ -194,7 +194,7 @@ class BlueberryRingUseCase extends ReactiveUseCase {
         final command = BlueberryCommands.readTime();
         collectLog('readTime:command $command');
         blueberryRingCharacteristic.value?.write(command);
-        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.first;
+        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.firstWhere((element) => element.isNotEmpty);
         collectLog('readTime:value $value');
         collectLog('readLevel:lastValue ${blueberryRingNotificationsCharacteristic.value!.lastValue}');
         return BlueberryResolves.readTime(Uint8List.fromList(value!));
@@ -208,7 +208,7 @@ class BlueberryRingUseCase extends ReactiveUseCase {
         final command = BlueberryCommands.readSleep();
         collectLog('readSleep:command $command');
         blueberryRingCharacteristic.value?.write(command);
-        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.first;
+        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.firstWhere((element) => element.isNotEmpty);
         collectLog('readSleep:value $value');
         collectLog('readLevel:lastValue ${blueberryRingNotificationsCharacteristic.value!.lastValue}');
         return BlueberryResolves.readSleep(Uint8List.fromList(value!));
@@ -222,7 +222,7 @@ class BlueberryRingUseCase extends ReactiveUseCase {
         final command = BlueberryCommands.readBloodOxygens();
         collectLog('readBloodOxygens:command $command');
         blueberryRingCharacteristic.value?.write(command);
-        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.first;
+        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.firstWhere((element) => element.isNotEmpty);
         collectLog('readBloodOxygens:value $value');
         collectLog('readLevel:lastValue ${blueberryRingNotificationsCharacteristic.value!.lastValue}');
         return BlueberryResolves.readBloodOxygens(Uint8List.fromList(value!));
@@ -236,7 +236,7 @@ class BlueberryRingUseCase extends ReactiveUseCase {
         final command = BlueberryCommands.readSteps();
         collectLog('readSteps:command $command');
         blueberryRingCharacteristic.value?.write(command);
-        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.first;
+        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.firstWhere((element) => element.isNotEmpty);
         collectLog('readSteps:value $value');
         collectLog('readLevel:lastValue ${blueberryRingNotificationsCharacteristic.value!.lastValue}');
         return BlueberryResolves.readSteps(Uint8List.fromList(value!));
@@ -250,7 +250,7 @@ class BlueberryRingUseCase extends ReactiveUseCase {
         final command = BlueberryCommands.readHeartRates();
         collectLog('readHeartRate:command $command');
         blueberryRingCharacteristic.value?.write(command);
-        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.first;
+        final value = await blueberryRingNotificationsCharacteristic.value?.lastValueStream.firstWhere((element) => element.isNotEmpty);
         collectLog('readHeartRate:value $value');
         collectLog('readLevel:lastValue ${blueberryRingNotificationsCharacteristic.value!.lastValue}');
         return BlueberryResolves.readHeartRates(Uint8List.fromList(value!));