Hello, Can you try to start only your fc30 pro and after, power your recalbox... normaly your fc30 pro is paired. You can try after to start your nes30 pro and swith it on paired mode (not in recalbox, only on your pad). I have fc30 pro and zero of 8bitod and i have no problems ;). Only problem i see is it's impossible to pair 2 same 8bido (2 x fc30 pro, 2 x zero)...