With Android < 13, my app was able to connect to my Bluetooth device an everything worked. Now I had to upgrade to 13, an see following behaviour: the device connects but shortly after is gets into a loop of disconnects and connects.
I found that the problem starts with a call to writeDescriptor directly after the service discovery, where I want to enable notifications.

in BLE unable to read the receiving response from the device .while i send request to ble device the command sends but the response is not logging in my app but if i connect the same device to the bluetooth trminal app and send request in my app the response is received by the bluetooth terminal app`

When scanning with a android.bluetooth.le.BluetoothLeScanner, after disconnecting a device, that device’s BluetoothDevice object sometimes has a null name.