Did you ever find the error. I have the same issue after replacing an the ESC board and min frame. Was careful and wore static wrist band so struggling to fix.
Does anyone know if the gimbal flat ribbon on a mini 1 is compatible/same as the one on the mini 2. On pictures I cannot see any differences apart from a some differences on PF number. Even on different pictures of some advertised as for mini 1 have differences. The mini 2 ones seem to be...