#1 is the ribbon cable still good? Does the pitch move at all? If so, listen for a motor buzzing noise. The motor shaft might be bent and that will put alot of strain on the motor and the motor circuit board. If the pitch motor gets hot, then you should replace the bent/broken parts before you fry a different component. It also will make the cam harder to move because the axis has changed by the bend. It might also be binding. Does the gap between the motor and housing look uniform? If not, the motor is gonna be a problem.
Take some more picture of the 3 remaining sides and back of the motor and arm and post em up here. Turn the drone on and leave it on for a few minutes, pitch the bird up and down and see of the pitch motor responds. Listen for a buzz and then feel the pitch motor for temp. If it gets too hot to touch, it might need to be replaced. I have gotten serious burns touching overloaded motors so be careful. Lick your finger before you touch it and if your spit sizzles, the motor is too hot to touch.