Helicopter fly away in loiter mode

@imamsugalih wrote:

My APM 2.8 installed for traditional helicopter, the swash plate servo has no auto compesate response during loiter mode.
That caused my heli flying away when i switched to loiter mode.
I already replace the APM Board with new spare but the problem still exist.
Cheap APM from ebay. Firmware 3.2.1. Flybarred helicooter. 500 class

For trouble shooting, i test my helicopter with no main blade installed.
After GPS got signal. I armed the apm in stabilize mode while holding my helicopter with my hands.
I put throtle to 50%.
Then i switch to loiter mode.
I bring my helicopter away from the initial place while watching the swash plate movement.
I saw there was no swash plate movement as response to move or to keep the helicopter at the initial place.
It is normal?
(If operated from Tx normally but no auto compesate response)

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