I've met a crazy and dangerous issue again, my copter flied to the sky and out of control.
Firmware: RC3.3 ArduCopter
Copter: octa, Agricultural Copter with 10kg water.
first time,:when I finished my mission and began to land, I reduced throttle, then copter was out of control and flied to about 300 meters.
second time: when I just took off and loiter, I reduced throttle and let alt down, then copter was out of control and flied to about 200 meters.
I don't know why this happened and hope someone can help, hope others not to meet this issue.
It's a code issue or my hardware issue?
Thanks for your help!
Eric my email: firstname.lastname@example.org