BLE Device Bonding Remove Automatically in Android

Question

We are doing below process to do pair with BLE Device.

Connect() + discoverServices() + Pairing(Bonding) .

Sometimes Android OS unpaired our BT device in a wei

Answer 1

We had the same issue and we've figured out that "connectGatt" has new "transport" argument (which defines transport protocol of connection), starting from SDK v 23. So if you want to pair your devices you should use "TRANSPORT_BREDR", if you want to only connect to peripheral without bonding - use "TRANSPORT_LE" Documentation: https://developer.android.com/reference/android/bluetooth/BluetoothDevice.html#connectGatt(android.content.Context, boolean, android.bluetooth.BluetoothGattCallback, int)