The Accelerometer is not calibrated.

If the accelerometer isn't calibrated, disconnect and reconnect RubiQ.

If you don’t hear the single beep at the end of the calibration process or the green check mark does not appear:

There’s no need to reset to default settings. Disconnect RubiQ and start the accelerometer calibration again.

If you hear a long screaming beep rather than three short beeps after the first step:

The drone was probably not held in the correct orientation. Physically disconnect from the RubiQ Configurator or INAV, check that the drone is flat on the table, right side up, and start the accelerometer calibration again.