I need advices of yours.
I trying hexa-rotor with apm 2.5.2 and arducopter 3.1.
when I use hexa firmware then only 5 esc running.
When I use quad firmware then only 3 esc running.
I reset the board using terminal mode. but same problem occured
I don't know what's the problem. :_(
I'm sorry that my bad english.