Ble Scanning Pause When Device Screen Off in vivo and poco device

**I'm working on project where i need to start ble scanning for sos message coming from Beacon device.
This scanning must remain active after app killed for listening sos message.

For this i am using foreground service with connectedType where i called below method.**

<service android:name=".ui.service.BeaconForegroundService" android:foregroundServiceType="connectedDevice" android:exported="false"/>

I am using pending intent approach.

fun startScanBluetoothDevice(pendingIntent: PendingIntent) { MyLogger.w(msg = "Scanning started !") val builder = ScanSettings.Builder().setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY) scanner = bluetoothAdapter?.bluetoothLeScanner scanner?.let { it.startScan(getScanFilter(), builder.build(), pendingIntent) } }

And pending intent below way

val intent = Intent(context, BleScanReceiver::class.java) val pendingIntent = PendingIntent.getBroadcast( context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_MUTABLE )

And listening result in broadcast receiver.

@AndroidEntryPoint class BleScanReceiver : BroadcastReceiver() { @Inject lateinit var bleManager: BleManager override fun onReceive(context: Context, intent: Intent) { MyLogger.d(msg = intent.toString()) } }

Note:
- All batery optimizaiton disable in device i check.
- I have all neccessary permission and bluetooth on.
- I follow android docs.

** I check with motorlola device where it work but it not work in poco or vivo device**

Means scanning feel pause.

In log message it feel it pause and resume when screen on.

When screen off :

D Result Come : ScanResult{device=XX:XX:XX:XX:C8:98, scanRecord=ScanRecord [mAdvertiseFlags=6, mServiceUuids=[0000fff1-0000-1000-8000-00805f9b34fb], mServiceSolicitationUuids=[], mManufacturerSpecificData={}, mServiceData={00000000-0000-1000-8000-00805f9b34fb=[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -59, 97]}, mTxPowerLevel=-2147483648, mDeviceName=null, mTDSData=null, mTransportDiscoveryData=null], rssi=-47, timestampNanos=154178666809128, eventType=27, primaryPhy=1, secondaryPhy=0, advertisingSid=255, txPower=127, periodicAdvertisingInterval=0} 2026-04-22 12:00:50.682 14072-14072 VRI[MainActivity] com.uffizio.androidbledemo D visibilityChanged oldVisibility=true newVisibility=false 2026-04-22 12:00:50.772 14072-14072 ViewRootImpl com.uffizio.androidbledemo D AppSizeAfterRelayout, size: Point(720, 1612), rotation: ROTATION_0 2026-04-22 12:00:50.775 14072-14072 BLASTBufferQueue com.uffizio.androidbledemo D [VRI[MainActivity]#3](f:0,a:4) destructor() 2026-04-22 12:00:50.775 14072-14072 BufferQueueConsumer com.uffizio.androidbledemo D [VRI[MainActivity]#3(BLAST Consumer)3](id:36f800000003,api:0,p:-1,c:14072) disconnect

no scanning result come.

When screen on:

D Intent { flg=0x10 cmp=com.uffizio.androidbledemo/.ble_new.broadcast.BleScanReceiver (has extras) } 2026-04-22 12:02:19.097 14072-14072 AppFlow com.uffizio.androidbledemo D Bundle[mParcelledData.dataSize=440] Intent { flg=0x10 cmp=com.uffizio.androidbledemo/.ble_new.broadcast.BleScanReceiver (has extras) } 2026-04-22 12:02:19.097 14072-14072 AppFlow com.uffizio.androidbledemo D type : 1 2026-04-22 12:02:19.097 14072-14072 AppFlow com.uffizio.androidbledemo D [ScanResult{device=XX:XX:XX:XX:C8:98, scanRecord=ScanRecord [mAdvertiseFlags=6, mServiceUuids=[0000ffe1-0000-1000-8000-00805f9b34fb], mServiceSolicitationUuids=[], mManufacturerSpecificData={}, mServiceData={0000ffe1-0000-1000-8000-00805f9b34fb=[-95, 8, 97, -20, 65, -40, 105, -56, -104, 80, 76, 85, 83]}, mTxPowerLevel=-2147483648, mDeviceName=null, mTDSData=null, mTransportDiscoveryData=null], rssi=-43, timestampNanos=154272727111903, eventType=27, primaryPhy=1, secondaryPhy=0, advertisingSid=255, txPower=127, periodicAdvertisingInterval=0}]