"I have the same issue, connect with futaba 6203sb. In qgc, rc signal cal. Normal, everything normal, however, after push safety button and arm stick position, lights ready, the motor no reaction with the throttle. Then i flash back to apm firmware,…"
"i have the same problem with you. I m using MB1260, when i switched to alt hold, the quad raise continuously. I will going to buy 10k resistor, 1500uf 6.5v cap and shield 3pin cable to replace it. Let see did it improve!"