I got an hexacopter ready to fly with an APM2.5. I tried and tried to run it but finally I was unable to do anything with. I went online and saw that I need to arm the APM and then try to do it but nothing happens.
I just calibrated my ESCs and test them one by one and they work. Now I have a problem with getting my motors working together through the APM. I am even unable to power my receiver (AR 800