Compass error during flight goes on&off

[Fela]

Hi, I hope someone can assist.

When I start flying all is in order, then red alert Compass Calibration error comes on… and then after some seconds it’s off again… then after a while On again… and off…

What could be the cause?
Firmware is updated. App is updated.

thanks!

 

[boblui]

This may help : A short explanation of compass function, calibration and errors.

 

[Fela]

Thank you