"ddid you assign what fc your using?"

"yes my friendyou can manual assign do_trigger or let mp do it, its much easier, go to ardupilot and check out mission planner, creating mission, read through it, mp creates a survey grid and assign wp for triggering the camera, makes our job easier,…"

"yes you have to assign it so that pixhawk knows what rc channel pin to trigger, try putting it in rc10 pinout, then go to flight page, right click then camera trigger, but base on yout gopro layout you soldered the
wire to power button, afaik there…"

"idk about the kill switch how it works, base on your layout its correct, it should trigger the relay if ever 5v is send by the kill switch, did you go to mission planner>initial setup>optional hardware>camera, on the lower part assign which channel…"

"get a turnigy relay switch"

"problem solve, sandpaper the terminal on the batt conector, isolate gps/compass from any power supply wire

it flies smooooooootly"

"i have solve the problem, reseting all parameters and re installing fw 3.2.1 was the solution"

"hi pat, tnx for the reply, i havent tried auto tune, it flies smoothly on stab mode, ive tried , checking what possible can cause the pulsating on the motor once i switch alt hold

tried yesterday

tune via ch 6 alt_p, ins_mpu filter set to 20,…"