BLE works perfectly fine on almost all device where clientIf value is upto 8. But when it is greater than that it fails.
On some devices when I restart the device it works perfectly but as soon I turn my device's Bluetooth On/OFF it stops working again. I tried other apps available on playstore but observed same behaviour on those apps as wel.
Device facing issues: Asus Zenfone MaxPro, Samsung s10e
Any idea how it could be solved ?
Log: ONE PLUS 6T : BLE Working :
2020-03-13 12:51:05.664 6496-6496/ble D/BluetoothAdapter: isLeEnabled(): ON
2020-03-13 12:51:05.666 6496-6496/ble D/MainActivity: *** TIME OUT ****
2020-03-13 12:51:05.692 6496-6496/ble D/MainActivity: scan finish
2020-03-13 12:51:05.779 6496-6496/ble V/ViewRootImpl: The specified message queue synchronization barrier token has not been posted or has already been removed
2020-03-13 12:51:06.422 6496-6496/ble V/ViewRootImpl: The specified message queue synchronization barrier token has not been posted or has already been removed
2020-03-13 12:51:06.427 6496-6496/ble D/MainActivity: connectToDevice() HANDLERRRR called with: message = [Connecting...]BleDevice{connected=false, connecting=false, address='00:1E:C0:46:8D:E6', name='unknown', device=00:1E:C0:46:8D:E6}
2020-03-13 12:51:06.434 6496-6496/ble D/MainActivity: setHandlerForTimeout: handler is set....!!
2020-03-13 12:51:06.440 6496-6496/ble D/BluetoothGatt: connect() - device: 00:1E:C0:46:8D:E6, auto: true
2020-03-13 12:51:06.440 6496-6496/ble D/BluetoothGatt: registerApp()
2020-03-13 12:51:06.441 6496-6496/ble D/BluetoothGatt: registerApp() - UUID=de971a16-3e50-4e23-94cf-fa77cc7e135f
2020-03-13 12:51:06.442 6496-6496/ble D/BluetoothGatt: configureMTU() - device: 00:1E:C0:46:8D:E6 mtu: 512
2020-03-13 12:51:06.442 6496-6496/ble D/BluetoothGatt: refresh() - device: 00:1E:C0:46:8D:E6
2020-03-13 12:51:06.442 6496-6496/ble D/BluetoothGatt: requestConnectionPriority() - params: 2
2020-03-13 12:51:06.445 6496-6513/ble D/BluetoothGatt: onClientRegistered() - status=0 clientIf=5
2020-03-13 12:51:06.498 6496-6514/ble D/DecorView: onWindowFocusChangedFromViewRoot hasFocus: true, DecorView@21386b6[MainActivity]
2020-03-13 12:51:06.606 6496-6496/ble D/OnePlusJankManager: Chor uploadMDM JANK_TYPE_ONCE mViewTitle = ble/ble.MainActivity--- jank level = 2
2020-03-13 12:51:06.608 6496-6496/ble D/MainActivity: start connecting = true info: Start connection...
2020-03-13 12:51:06.622 6496-6513/ble D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=5 device=00:1E:C0:46:8D:E6
2020-03-13 12:51:06.623 6496-6513/ble D/BleGattImpl: onConnectionStateChange() called with: gatt = [android.bluetooth.BluetoothGatt@d3aeea8], status = [0], newState = [2]
2020-03-13 12:51:06.627 6496-6513/ble D/BluetoothGatt: discoverServices() - device: 00:1E:C0:46:8D:E6
2020-03-13 12:51:06.628 6496-6513/ble D/BleGattImpl: onConnectionStateChange: connected and discoversies status: true
2020-03-13 12:51:07.098 6496-6513/ble D/BluetoothGatt: onConnectionUpdated() - Device=00:1E:C0:46:8D:E6 interval=6 latency=0 timeout=500 status=0
2020-03-13 12:51:07.258 6496-6513/ble D/BluetoothGatt: onSearchComplete() = Device=00:1E:C0:46:8D:E6 Status=0
2020-03-13 12:51:07.259 6496-6513/ble D/BleGattImpl: onServicesDiscovered() called with: gatt = [android.bluetooth.BluetoothGatt@d3aeea8], status = [0]
2020-03-13 12:51:07.275 6496-6496/ble D/MainActivity: onConnected() called with: device = [BleDevice{connected=true, connecting=false, address='00:1E:C0:46:8D:E6', name='unknown', device=00:1E:C0:46:8D:E6}]
2020-03-13 12:51:07.316 6496-6513/ble D/DecorView: onWindowFocusChangedFromViewRoot hasFocus: true, DecorView@b94b93b[MainActivity]
2020-03-13 12:51:07.333 6496-6513/ble D/BluetoothGatt: onConnectionUpdated() - Device=00:1E:C0:46:8D:E6 interval=38 latency=0 timeout=500 status=0
2020-03-13 12:51:07.718 6496-6496/ble V/ViewRootImpl: The specified message queue synchronization barrier token has not been posted or has already been removed
2020-03-13 12:51:07.749 6496-6496/ble W/Choreographer: Already have a pending vsync event. There should only be one at a time.
BLE Log - Samsung S10e - NOT WORKING:
2020-03-13 12:52:13.481 2426-7119/com.pravin.ble W/ratestblesampl: Something went wrong with handling the ddm chunk.
2020-03-13 12:52:14.747 2426-2426/com.pravin.ble D/ViewRootImpl@deec49d[MainActivity]: ViewPostIme pointer 0
2020-03-13 12:52:14.812 2426-2426/com.pravin.ble D/ViewRootImpl@deec49d[MainActivity]: ViewPostIme pointer 1
2020-03-13 12:52:14.817 2426-2426/com.pravin.ble I/MultiWindowDecorSupport: updateCaptionType >> DecorView@d3168a7[MainActivity], isFloating: true, isApplication: true, hasWindowDecorCaption: false, hasWindowControllerCallback: false
2020-03-13 12:52:14.818 2426-2426/com.pravin.ble D/MultiWindowDecorSupport: setCaptionType = 0, DecorView = DecorView@d3168a7[MainActivity]
2020-03-13 12:52:14.857 2426-2426/com.pravin.ble D/ViewRootImpl@cdaec46[MainActivity]: setView = DecorView@d3168a7[MainActivity] TM=true MM=false
2020-03-13 12:52:14.858 2426-2426/com.pravin.ble D/MainActivity: connectToDevice() HANDLERRRR called with: message = [Connecting...]BleDevice{connected=false, connecting=false, address='00:1E:C0:46:8D:E6', name='unknown', device=00:1E:C0:46:8D:E6}
2020-03-13 12:52:14.866 2426-2426/com.pravin.ble D/MainActivity: setHandlerForTimeout: handler is set....!!
2020-03-13 12:52:14.874 2426-2426/com.pravin.ble D/BluetoothAdapter: STATE_ON
2020-03-13 12:52:14.876 2426-2426/com.pravin.ble D/BluetoothGatt: connect() - device: 00:1E:C0:46:8D:E6, auto: true
2020-03-13 12:52:14.876 2426-2426/com.pravin.ble D/BluetoothAdapter: isSecureModeEnabled
2020-03-13 12:52:14.877 2426-2426/com.pravin.ble D/BluetoothGatt: registerApp()
2020-03-13 12:52:14.878 2426-2426/com.pravin.ble D/BluetoothGatt: registerApp() - UUID=20db861e-0afa-4d3e-ad28-8fd9116db8b4
2020-03-13 12:52:14.880 2426-2426/com.pravin.ble D/BluetoothGatt: configureMTU() - device: 00:1E:C0:46:8D:E6 mtu: 512
2020-03-13 12:52:14.880 2426-2426/com.pravin.ble D/BluetoothGatt: requestConnectionPriority() - params: 2
2020-03-13 12:52:14.881 2426-2448/com.pravin.ble D/BluetoothGatt: onClientRegistered() - status=0 clientIf=9
2020-03-13 12:52:14.933 2426-2426/com.pravin.ble D/ViewRootImpl@cdaec46[MainActivity]: Relayout returned: old=[0,117][1080,2235] new=[27,1002][1053,1350] req=(1026,348)0 dur=8 res=0x7 s={true 479479746560} ch=true
2020-03-13 12:52:14.934 2426-2460/com.pravin.ble D/OpenGLRenderer: createReliableSurface : 0x6f35547dc0, 0x6fa3385000
2020-03-13 12:52:14.934 2426-2460/com.pravin.ble I/mali_winsys: new_window_surface() [1218x540] return: 0x3000
2020-03-13 12:52:14.945 2426-2426/com.pravin.ble E/DecorView: mWindow.mActivityCurrentConfig is null
2020-03-13 12:52:14.947 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:14.962 2426-2448/com.pravin.ble D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=9 device=00:1E:C0:46:8D:E6
2020-03-13 12:52:14.972 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x6f50f30200
2020-03-13 12:52:14.974 2426-2448/com.pravin.ble D/BleGattImpl: onConnectionStateChange() called with: gatt = [android.bluetooth.BluetoothGatt@a4e93a3], status = [0], newState = [2]
2020-03-13 12:52:14.975 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:14.984 2426-2448/com.pravin.ble D/BluetoothGatt: discoverServices() - device: 00:1E:C0:46:8D:E6
2020-03-13 12:52:14.985 2426-2448/com.pravin.ble D/BleGattImpl: onConnectionStateChange: connected and discoversies status: true
2020-03-13 12:52:14.989 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x6f50f30200
2020-03-13 12:52:14.990 2426-2426/com.pravin.ble D/ViewRootImpl@cdaec46[MainActivity]: MSG_WINDOW_FOCUS_CHANGED 1 1
2020-03-13 12:52:14.992 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:14.997 2426-2426/com.pravin.ble D/MainActivity: start connecting = true info: Start connection...
2020-03-13 12:52:15.010 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x6f50f30200
2020-03-13 12:52:15.013 2426-2426/com.pravin.ble D/ViewRootImpl@deec49d[MainActivity]: MSG_WINDOW_FOCUS_CHANGED 0 1
2020-03-13 12:52:15.013 2426-2426/com.pravin.ble D/InputMethodManager: prepareNavigationBarInfo() DecorView@ff25fd9[MainActivity]
2020-03-13 12:52:15.014 2426-2426/com.pravin.ble D/InputMethodManager: getNavigationBarColor() -855310
2020-03-13 12:52:15.025 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:15.026 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x6f50f30200
2020-03-13 12:52:15.029 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:15.030 2426-2426/com.pravin.ble D/ViewRootImpl@cdaec46[MainActivity]: MSG_RESIZED: frame=[27,1002][1053,1350] ci=[0,0][0,0] vi=[0,0][0,0] or=1
2020-03-13 12:52:15.661 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:15.672 2426-2455/com.pravin.ble D/BluetoothGatt: onConnectionUpdated() - Device=00:1E:C0:46:8D:E6 interval=6 latency=0 timeout=500 status=0
2020-03-13 12:52:15.675 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x6f50f30200
2020-03-13 12:52:15.677 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:15.692 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x6f50f30200
2020-03-13 12:52:15.695 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:15.796 2426-2455/com.pravin.ble D/BluetoothGatt: onSearchComplete() = Device=00:1E:C0:46:8D:E6 Status=0
2020-03-13 12:52:15.797 2426-2455/com.pravin.ble D/BleGattImpl: onServicesDiscovered() called with: gatt = [android.bluetooth.BluetoothGatt@a4e93a3], status = [0]
2020-03-13 12:52:15.815 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x6f50f30200
2020-03-13 12:52:15.819 2426-2426/com.pravin.ble D/MainActivity: onConnected() called with: device = [BleDevice{connected=true, connecting=false, address='00:1E:C0:46:8D:E6', name='unknown', device=00:1E:C0:46:8D:E6}]
2020-03-13 12:52:15.827 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3387a00
2020-03-13 12:52:15.863 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3387a00 -> 0x0
2020-03-13 12:52:15.863 2426-2460/com.pravin.ble I/mali_egl: eglDestroySurface() in
2020-03-13 12:52:15.865 2426-2460/com.pravin.ble I/mali_winsys: delete_surface() [1218x540] return
2020-03-13 12:52:15.865 2426-2460/com.pravin.ble I/mali_egl: eglDestroySurface() out
2020-03-13 12:52:15.865 2426-2460/com.pravin.ble W/libEGL: EGLNativeWindowType 0x6f35547dd0 disconnect failed
2020-03-13 12:52:15.865 2426-2426/com.pravin.ble D/ViewRootImpl@cdaec46[MainActivity]: dispatchDetachedFromWindow
2020-03-13 12:52:15.870 2426-2426/com.pravin.ble D/InputTransport: Input channel destroyed: '597634e', fd=93
2020-03-13 12:52:15.881 2426-2448/com.pravin.ble D/BluetoothGatt: onConnectionUpdated() - Device=00:1E:C0:46:8D:E6 interval=39 latency=0 timeout=500 status=0
2020-03-13 12:52:15.918 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x0 -> 0x6f50f30200
2020-03-13 12:52:15.937 2426-2426/com.pravin.ble D/ViewRootImpl@e5cf2f6[Toast]: setView = android.widget.LinearLayout{fde96f7 V.E...... ......I. 0,0-0,0} TM=true MM=false
2020-03-13 12:52:15.937 2426-2426/com.pravin.ble V/Toast: Text: Donn in android.widget.Toast$TN@dcfb964
2020-03-13 12:52:15.937 2426-2426/com.pravin.ble D/ViewRootImpl@deec49d[MainActivity]: MSG_WINDOW_FOCUS_CHANGED 1 1
2020-03-13 12:52:15.938 2426-2426/com.pravin.ble D/InputMethodManager: prepareNavigationBarInfo() DecorView@ff25fd9[MainActivity]
2020-03-13 12:52:15.938 2426-2426/com.pravin.ble D/InputMethodManager: getNavigationBarColor() -855310
2020-03-13 12:52:15.945 2426-2426/com.pravin.ble E/ViewRootImpl: sendUserActionEvent() mView returned.
2020-03-13 12:52:15.961 2426-2426/com.pravin.ble D/ViewRootImpl@e5cf2f6[Toast]: Relayout returned: old=[0,117][1080,2235] new=[241,1911][839,2043] req=(598,132)0 dur=8 res=0x7 s={true 478099464192} ch=true
2020-03-13 12:52:15.963 2426-2460/com.pravin.ble D/OpenGLRenderer: createReliableSurface : 0x6f35547dc0, 0x6f50f2e000
2020-03-13 12:52:15.963 2426-2460/com.pravin.ble I/mali_winsys: new_window_surface() [598x132] return: 0x3000
2020-03-13 12:52:15.967 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3396900
2020-03-13 12:52:15.972 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3396900 -> 0x6f50f30200
2020-03-13 12:52:15.973 2426-2426/com.pravin.ble D/ViewRootImpl@e5cf2f6[Toast]: MSG_RESIZED_REPORT: frame=[241,1911][839,2043] ci=[0,0][0,0] vi=[0,0][598,132] or=1
2020-03-13 12:52:15.993 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6f50f30200 -> 0x6fa3396900
2020-03-13 12:52:16.262 2426-2460/com.pravin.ble D/OpenGLRenderer: SurfaceChanged : 0x6fa3396900 -> 0x6f50f30200