nice to hear if you got your control to work.

@@modernfix1 Still haven't tried, but this was the only video I've found talking about possible solder cracks.

@@natanteam Well if you think about how these are used. Usually they are used pretty hard. thrown around the room when you lose. This will cause a crack solder joint.

you will need hot air because under the ship is a grounding pad also that needs to be reflowed.

Thank you for response. I will borrow hot air and try to fix

I did not make any diagnostic on the chip since I took a lucky guess that it may have crack solder joint. Since these get very heavy use and get dropped a lot. This chip is the one that controls the motion. If you have another controller you swap that chip from a working one to make sure that the ship is the faulty one. Usually take a look at the markings on the chip and search from e.g. aliexpress or ebay. These are the places where I usually buy my spare parts.

I do not known the size of the fuse. Usually voltage and amps are very low with these. If you have fixed your short you can use a thin wire to replace the fuse.