Main Causes:
Uneven terrain such as slopes, pits, or steps.
Ground conditions causing instability.
Machine flipped more than 35°, triggering the safety shutdown.
Outdated firmware not handling error correctly.
Solution:
If your mower reports an upside-down error, please try the following:
Update the firmware if it´s not the latest version.
Move the mower to a flat surface.
Restart it by pressing Start + OK.
Check the area for slopes, pits, or steps that might cause the mower to flip over.