RoosArt
Well-Known Member
I had my Mavic Air compass go haywire after setting it on a reinforced concrete slab for take off. I had to pick up the drone and recalibrate the compass.Oh, I totally believe you. The system and sensor aren't infallible.
The compass can be rendered inoperative (i.e. returning inconsistent, nonsensical data) either in the presence of ferromagnetic metals, or external artificial magnetic fields.
The latter can trigger a false calibration prompt that will go away if you move and restart the drone.
That's not necessarily what caused your problem, just an example of how false calibration prompts can occur.