Why can't the compass be calibrated?

[GPSanchor (Boat fpv play)]

pls help,

[GPSanchor (Boat fpv play)]

when i click start! no thing hapen

[amilcarlucas]

Relax the calibration. You are calibrating with “very strict”

[GPSanchor (Boat fpv play)]

figure out ，it need to dis armed