I see that only the MOGA controllers work (well my pocket version doesn't work [got it free but just shipping it was a deal]). Recently I got a Phonejoy gamepad (won it in a contest) but that doesn't seem to work either. The only Bluetooth devices that work for me on my HTC M8 are Bluetooth keyboards. I know with my MOGA pocket it keeps disconnecting. I tried all the tricks but it never works for me. My Phonejoy gamepad actually stays connected but it still doesn't work. Any insight would be helpful. Thanks!