Quadcopter oscilate when in loiter mode but its fine in stablize and althold mode

ArduCopter
1

Greetings

I have experience in fixed wing setups but this is my first quadcopter build.
The quadcopter flies well with the default settings. I take off in stabilize mode or alt hold mode with no problem other than slightly drifting from the wind force.
However as soon as I switch to loiter mode the quadcopter acts crazy trying to hold it position.
I tried lowering the P gain but the quadcopter became less stable when taking off.

i spent many hours trying to fix this issue. your help is greatly appreciated

I will upload the bin files here

set up:
f450 frame
sunnyski motor 2216 800 kv motor
30A escs
pixhawk 2.4.8 flight controller
3s 3300 mah battery
weight 1100 grams

2

That Flight Controller is not supported by Ardupilot.
Unsupported

3

sorry it is pixhawk 2.4.8

4

Oh really? I think that’s bullshit.

Radiolink Crossflight
Radiolink Crossflight288×199 35.9 KB

Even if it didn’t say Crossflight right in the messages there was never a V4.3.7.6 Arducopter.

Take your questions to Radiolink.

5

I have a new pixhawk. If I swap the flight controllers would you help me ?

If yes let me know and I’ll get back to you next week