Hi everyone, I had a problem with one motor, the left one, and after various tests, even inverting the motors between them, I understood that the problem was with the ESC, I found a motherboard on ebay sold as new even if it doesn't seem like it to me, post the photo in particular there is a solder that does not convince me, however I replaced the motherboard and everything seems to work as before. I have some questions for the experts, I cleaned up the soldering on the track by removing the excess tin but I don't know if I did it right and maybe I weakened the track due to the current involved which seems to be a lot. Second, is it possible to repair or have my original motherboard repaired?