I have just uploaded the 3.1 on my APM 2.5 but I have a problem with the motors they will not spin.
So I have calibrated everything new. Compas, ACC, RC... . When I connect the battery the motors makes the typical beep. Then I armed the FC and I get the massage that the copter is armed and that´s it! No motor will spin.
I have fly the copter bevor without any problem. Any Idea?
Replies
I made a reset and erase of the FC installed the new firmware and it works again.
hey,
did you do the ESC Calibration: http://copter.ardupilot.com/wiki/initial-setup/esc-motor/
Hello Tommy
Thank you for your replay.
Yes engine calibration are done. I flew the helicopter with firmware 2.9. I think it is a wrong attitude that I have done and can not remember, and was not a problem under ArduPilot 2.9 but now have with the 3.1 means that the motors do not rotate.