No peripheral connection after disconnect with Android App Nordic Uart Service until mac-address of smartphone changes

[qwertynoon]

No connection after disconnect with Android App Nordic Uart Service until mac-address of smartphone changes

Multilink multirole software developed in SES studio.

Other smartphone can connect without reset of NRF52 or I should wait until first phone changes its mac-address.

No feedback (from any handle) from NRF52... just no connection

LOG from Android studio

2021-12-16 20:54:23.372 11320-11353/com.sicameiot.PingPong D/Surface: Surface::connect(this=0x72766ee000,api=1)
2021-12-16 20:54:23.373 11320-11353/com.sicameiot.PingPong D/Surface: Surface::setBufferCount(this=0x72766ee000,bufferCount=3)
2021-12-16 20:54:24.429 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: stopLeScan()
2021-12-16 20:54:24.432 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: scan not started yet
2021-12-16 20:54:25.306 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: stopLeScan()
2021-12-16 20:54:25.309 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: isLeEnabled(): ON
2021-12-16 20:54:25.325 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: stopLeScan()
2021-12-16 20:54:25.327 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: scan not started yet
2021-12-16 20:54:25.348 11320-11320/com.sicameiot.PingPong D/DM-30: ... onActivityResultdevice.address==E3:F6:F8:7B:76:E1mserviceValuecom.sicameiot.PingPong.UartService@7c66d8e
2021-12-16 20:54:25.350 11320-11320/com.sicameiot.PingPong D/BluetoothGatt: connect() - device: E3:F6:F8:7B:76:E1, auto: false
2021-12-16 20:54:25.350 11320-11320/com.sicameiot.PingPong D/BluetoothGatt: registerApp()
2021-12-16 20:54:25.350 11320-11320/com.sicameiot.PingPong D/BluetoothGatt: registerApp() - UUID=1f7942b9-e69c-4196-ba66-a35a71c70388
2021-12-16 20:54:25.353 11320-11320/com.sicameiot.PingPong D/UartService: Trying to create a new connection.
2021-12-16 20:54:25.354 11320-11320/com.sicameiot.PingPong D/DM-30: onResume
2021-12-16 20:54:25.354 11320-11338/com.sicameiot.PingPong D/BluetoothGatt: onClientRegistered() - status=0 clientIf=7
2021-12-16 20:54:25.356 11320-11320/com.sicameiot.PingPong V/PhoneWindow: DecorView setVisiblity: visibility = 0, Parent = android.view.ViewRootImpl@b17118d, this = DecorView@399f42[MainActivity]
2021-12-16 20:54:25.380 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: stopLeScan()
2021-12-16 20:54:25.382 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: scan not started yet
2021-12-16 20:54:25.384 11320-11320/com.sicameiot.PingPong V/PhoneWindow: DecorView setVisiblity: visibility = 4, Parent = android.view.ViewRootImpl@29581d1, this = DecorView@6a5bb6a[DeviceListActivity_master]
2021-12-16 20:54:25.385 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: stopLeScan()
2021-12-16 20:54:25.386 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: scan not started yet
2021-12-16 20:54:25.390 11320-11353/com.sicameiot.PingPong D/Surface: Surface::disconnect(this=0x72766ee000,api=1)
2021-12-16 20:54:25.392 11320-11320/com.sicameiot.PingPong D/View: [Warning] assignParent to null: this = DecorView@6a5bb6a[DeviceListActivity_master]
2021-12-16 20:54:25.393 11320-11320/com.sicameiot.PingPong I/InputTransport: Destroy ARC handle: 0x728380a840
2021-12-16 20:54:25.883 11320-11338/com.sicameiot.PingPong D/BluetoothGatt: onClientConnectionState() - status=133 clientIf=7 device=E3:F6:F8:7B:76:E1
2021-12-16 20:54:25.884 11320-11338/com.sicameiot.PingPong I/UartService: Disconnected from GATT server.
2021-12-16 20:54:25.886 11320-11320/com.sicameiot.PingPong D/DM-30: UART_DISCONNECT_MSG
2021-12-16 20:54:25.886 11320-11320/com.sicameiot.PingPong W/UartService: mBluetoothGatt closed
2021-12-16 20:54:25.886 11320-11320/com.sicameiot.PingPong D/BluetoothGatt: close()
2021-12-16 20:54:25.886 11320-11320/com.sicameiot.PingPong D/BluetoothGatt: unregisterApp() - mClientIf=7
2021-12-16 20:54:33.119 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: stopLeScan()
2021-12-16 20:54:33.122 11320-11320/com.sicameiot.PingPong D/BluetoothAdapter: scan not started yet

[Simonr]

Hi

Please note that you can upload images and files to DevZone as well, so you don't have to upload it on a separate link.

I don't see any retries during connection here, which is what generally fixes the 0x85 error you're seeing. Just for reference, is your nRF application running on a Development Kit or a custom board?

Please also try uploading a sniffer trace of the on-air activity if you can.

Best regards,

Simon

[qwertynoon]

6320.wireshark.pcapng

[Simonr]

Hi

By "retries during the connection" I mean that you need to implement some retries on the nRF application side so that it automatically tries to connect again if it fails. The latest BLE sniffer trace you have uploaded does not seem to be correct, as there are no advertisements, or connection requests/responses and disconnects here.

Best regards,

Simon

[qwertynoon]

Hi Dear!

Thanks for reply

as there are no advertisements

1800    49.442909    dc:9d:05:72:99:ce    Broadcast    LE LL    55    ADV_IND

is this not advertisements?

The latest BLE sniffer trace you have uploaded does not seem to be correct, as there are no advertisements, or connection requests/responses and disconnects here.

That is the problem!!! I cant reconnect (((((

BTW I found that if while this problem I turn on "fty mode" on smartphone and then turn off it I can connect - but as I told above it happen because mac-address of smartphone changes. And this I done with different smartphones - the same situation.

I cant understand what is this