I will try to provide as much info as possible. I have an Eachine Falcon 180 with "supposedly" Fairy 20A Blheli ESCs and it was working fine out of the box, then at some point it didnt (was messing with cleanflight and betaflight... stupid me) and now motors 3/4 beep and jitter but dont spin. while 1/2 behave normally. I have flashed Betalight back to cleanflight etc... checked all connections... I am hoping its something simple... Outline of the problem If I attempt to do an ESC calibration in Cleanflight, as soon as the battery is plugged in motors 3/4 beep constantly whereas 1&2 do the normal beeping then i lower and raise and they spin accordingly. all the while 3&4 just go beep, beep constantly, never spinning. Same thing with using a controller. I can add videos later. Is anyone familiar with this and knows the solution. Radio is the Eachine i6 (Flysky clone) FC is a Naze32 of some sort. thanks.