Why does the scheduled cleanup fail on the Xiaomi Robot Vacuum S40C?

If the scheduled cleanup fails on the Xiaomi Robot Vacuum S40C, please refer to the following suggestions:
1. The battery is too low. The robot vacuum needs at least 15% battery to start a scheduled cleanup. If it's below that, the scheduled cleanup won't begin;
2. Do Not Disturb (DND) mode is enabled. If DND time overlaps your scheduled cleanup, the robot vacuum will not run. Make sure DND is turned off or scheduled not to conflict;
3. The robot vacuum must be online to sync its clock and receive the cleanup command. Reboot the router or re-pair the device if needed;
4. If the robot vacuum lacks a saved map, is misplaced, or the map is corrupted, it can fail to start or reroute wrongly during scheduled tasks.