public async void StartServicesOnDevice(DeviceInformationItem chosenBLEDevice) { var linkLossServiceOnDevice = chosenBLEDevice.Device.GetGattService(GattServiceUuids.LinkLoss); var batteryServiceOnDevice = chosenBLEDevice.Device.GetGattService(GattServiceUuids.Battery); var ImmediateAlertServiceOnDevice = chosenBLEDevice.Device.GetGattService(GattServiceUuids.ImmediateAlert); await BatteryService.Start(batteryServiceOnDevice); await LinkLossService.Start(linkLossServiceOnDevice); LinkLossService.WriteAlertLevelCharacteristicAsync(AlertLevelEnum.HighAlert); await ImmediateAlertService.Start(ImmediateAlertServiceOnDevice); BatteryService.ValueChangeCompleted += BatteryService_ValueChangeCompleted; }