I bought a Pixhawk from Banggood (link below), flashing the board via MissionPlanner works normally, also the board acts like everything is right. But if I connect a Servo or an ESC there is no respone. I then connected an oscilloscope and there is no PWM Signal. I then tried to flash older firmwares, at one point I got a correct PWM Signal, but when I rebooted it, the signal was gone again on all outputs.
Can it be that there is a firmware issue, or is it more likly that the board is funky?
Thanks for your help