My Q5004k crashed about 1ft up and hit the top right motor (Nr 4). Since then it’s not starting up and shows initialization failure, also ST10 shows Motor Error – 5 Motor Failure – Land. Lastly on my GUI it shows ESC 4 is red and wont re assign. I have already done as follows: 1) Re installed the Q500 Firmware 2) Opened up the motor and It shows no sign of burn out, checked further with multi meter and it does not show any irregularities. 3) Pressing Calibrate on ST10 or GUI does not seem to work as it just doesn’t do anything 4) When I try to reassign ESC motors, Nr 3 responds if I turn motor 4 > don’t know why! Need help, thank you.