Why is the floor still dirty after mopping with the Xiaomi Robot Vacuum S40C?

Under normal operating conditions, the floor should be clean and tidy after the Xiaomi Robot Vacuum S40C has mopped it. If the floor still appears dirty, it can be due to other factors.
If the floor is still dirty after mopping with the robot vacuum, please refer to the following steps:
1. You can remove the mop for cleaning or replace it with a new one. If the mop is too dirty or filled with dust, it can affect the cleaning performance;
2. Select a higher-intensity water output for mopping, such as level 2 or level 3. Some stains on the floor can be stubborn, and if the current mode is set to level 1, it can not provide sufficient cleaning power for tough stains;
3. Check whether the water tank is filled and ensure the water flow is unobstructed. If the tank is empty or the water path is blocked, the mop can not stay wet, resulting in reduced mopping performance;
4. Rebuild the map. If the map is not properly constructed, the robot vacuum will clean the same area repeatedly or miss certain areas;
5. If the above methods do not resolve the issue, please contact the local after-sales service center.