Android Gamepad T3, how can I get the R2 button to work?

[AC Question]

Android gamepad T3

Bought an Bluetooth gamepad for my LG G2, but the R2 button not works, tried on LG L70 and works perfectly, what problem could be? Is there any solutions to fix it?

 

[anon(632115)]

Re: Android gamepad T3

Neither device appears to be supported, according to the ad on Amazon. There's probably not a lot you can do other than contact the seller for support.