Bluetooth not connecting on 4.4.2

Question

I\'ve got a Bluetooth device that has connected on all versions of Android that I have tried prior to 4.4.2. Now, it\'s not connecting on the Galaxy Tab 4 or the S3. The Tab

Answer 1

I have also used connection steps using the same code but that could work only for Smart Android device.

you can get the BluetoothDevice object of the particular device you want to connect. after that you can use BluetoothHeadset's connect and disconnect method via reflection to connect to the perticular BluetoothDevice.

Class BTHeadset = Class.forName("android.bluetooth.BluetoothHeadset");
        Method conn = BTHeadset.getMethod("connect", new Class[] {BluetoothDevice.class});
               conn.invoke(BTHeadset, new Object[] {btDev});

same code you can use for disconneting a device using disconnect method via reflection.