Motors won’t spin

Pixhawk
1

I built a F450 frame years ago and recently bought a Hollybro 6C for it . I programmed it through Mission Planer . I resolved all warnings on the screen and can arm the copter . The motors just beep. From what I could read the signal to the esc’s is corrupted. I’ve replaced the ESC,s and tested them separately from the Pixhawk , they work fine. Can someone give me any suggestions.Thanks

2

This is PX4, as you are using mission planner and you should consult in ArduPilot forum.

3

Thanks I was confused.