What to do if the drive wheel of the Xiaomi Robot Vacuum S40C is not working properly?

If the drive wheel of the Xiaomi Robot Vacuum S40C is not working properly, please refer to the following steps to troubleshooting:
1. Check whether there is any debris or tangled hair in or around the drive wheel and its components;
2. If the drive wheel is too dirty, it can affect traction. Use a brush to clean the drive wheel thoroughly;
3. Restart the device and test it again;
4. Check the robot vacuum for any visible signs of physical damage that affects its functionality.
If the above steps cannot resolve the issue, please contact the local after-sales service center for further assistance.