Hi everyone, I'm a newbie here :)

I'm having an issue with my custom built quad and APM, i have followed the guides to set up apm step by step, all seems ok. After everything set i try to test it but i have this issue:

I turn radio on, plug lipo,  after a few seconds 3 motors start spinning almost at full throttle.

I have a DX6i and AR6200, fail-safe was blinking, so i tried to plug lipo before turn radio on, same thing, after i turn radio on the motors start spinning.

If i move the throttle stick forward the 4th motor that didn't start sniping starts spinning and speeds as i move the stick, the other 3 are always almost at full throttle.

Because my channel order is not the same as in the APM guide i connected it to corresponding name:

CH1 - Throttle --> PIN3

CH2 - Aileron --> PIN1

CH3 - Elevator --> PIN2

CH4 - Rudder --> PIN4

CH5 - Gear --> PIN5

In Mission Planner Radio calibration all reacted fine to corresponding stick

I had the 4 ESCs connected to APM board but while searching for a solution for this issue i saw its not the way to do it, so now i have only one ESC powering APM, and other 3 only the signal wire. I will be powering it with a UBEC in the future.

my ESCs are HobbyWing 25amp, same as Turnigy Plush 25amp.

 

I'm losing it here :( tried everything, searched everywhere and cant find a solution, can anyone help me please.

 

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