I took a flight today with my giant copter, I found 2 of the motors were not responsive.
I tried to spin the motors using simple motor spin test using CLI test in Mission Planner.
'Hear' the motors twitching, when they want to break free to rotate..but it just does not.
Motors: RC-Timer 5010-14, 360kV
Props: 17" inch
Anyone any idea on what to do? Two of them are not responding. I have rechecked the solder and connections, they are fine and its the fifth's one I am building, never had problems like this before!!