I own a 2nd RC which i had with a crashed P3s, i was able to use it many times without any sort of problem, i just linked it and flied without problems, just as the other RC. Yesterday i did the pairing procedure, it wents fine (green lights, DJI GO connected, home point recorded message, camera signal visible on the smartphone) but as i crossed down the sticks nothing happened, engines didn't start. Tried both internal and external sticks down but nothing. I tried to take off using the option on the app and the birds this time started and went in hovering as usual, but as i tried to command the behaviour gets crazy! I tried to go left and the bird went right and stuff like this. I suddendly took the drone with my hands and turned everything off. Tried to pair again many times, the procedure always succeded but nothing, the engines didn' start with the sticks down-center. Pairing the other RC everything works fine... What should be happened? Is there a way to update/change firmware to the RC? I was thinking to mount high gain antennas on this one keeping the other original... Thanks in advance!