Possibly a dead motor?

[That guy]

My m4 stopped working yesterday. I assumed it was the battery but after fully charging it, it still doesn't work.

I did a load test on the battery, That indicated that the motor wasn't engaging, so i went to take the motor out only to find that one of the motor mount screw has been rounded.

The fuse had been removed so i think something went wrong and there was no protection (probably a short circuit from the bad wiring).

Any other ideas on what could have happened?

Any ideas on how to get out a rounded allen headed screw?

[n1ckh]

Use a pair of pliers to grip the head & turn

 

Check all wiring for any breaks

Check solder joints on trigger contacts & battery connector (if deans is fitted)

Check motor out of the pistol grip but hold onto it