Hello all, I just purchased a used phantom 2 off FB market on the cheap. The guy told me one of the motors felt sticky what he didn't tell me was it refused to turn at all while powered up. He was honest in telling me he had bought it to use in his real estate business and also tell me he stopped because he crashed. Heres my question to all. Visually I can't see damage to this motor but when free hand turning it there is def restriction in this motor. Does anyone know what I can do to either test it to see if its just jammed or replace it on my own.