Compass motor calibration does not work,

When you click on the start button, nothing happens.
On all the videos I’ve watched, a graph is shown when clicked

This is what happens when the button is pressed

Are you connected to a vehicle? USB or telemetry?
Is the vehicle powered by a battery?
Are you using ArduPlane 4.4.3 or newer?
Is that a recent MissionPlanner version?
Have you configured the initial mandatory parameters?

USB connection
Power is connected
Firmware Version 4.4.2
Mission Planner version 1.3.80
What are the necessary parameters you are talking about?

Don’t bother with that method. Use Magfit for compass calibration and motor compensation. Easier, safer and better results.

Sorry for the maybe stupid question, but how to do it

Do you mean this
https://ardupilot.org/copter/docs/common-magfit.html

Yes. You can use MAVExplorer or the Webtool
Magfit Webtool

thank you very much
:grinning: