I have just calibrated the mag for the pixhawk4 compass and the window saying “please reboot the autopilot” appeared but I am unsure how to actually reboot the autopilot. When I hit okay on the window and switch to flight data it deletes the calibration. I have tried powering the pixhawk off, disconnecting the telemetry connection, and resetting mission planner all with no success. Any help would be appreciated.
Good day, did you try qgroundcontrol?
Just try calibrate connecting the fc with usb cable
Rebooting is just power down the pixhawk and power it back on. Or use the reboot action in Mission Planner.