Connect Ps4 controller to my LG android phone

[Android Central Question]

I'm trying to reconnect my PS4 controller to my LG X Charge phone. Via Bluetooth. Now I had it working once for a little bit with a emulator on my phone. Worked good too. But don't know what happen. It connects to the phone pairs with it but does not register as any kind of Imput on anything I try to use the PS4 controller with. Any Help is Appreciated.