What to do if the Xiaomi Robot Vacuum S40 Pro moves backward while cleaning?

If the Xiaomi Robot Vacuum S40 Pro moves backward while cleaning, please refer to the following steps to troubleshoot:
  1. Check whether the drive wheels are tangled with foreign objects.
  2. Ensure the LDS (laser distance sensor) is rotating properly. Gently press on the LDS cover to check whether it rebounds properly.
  3. Inspect the LDS for any debris or hair that can be obstructing its movement. Remove them if found.
  4. Check the bumper and the surface of the robot vacuum for irregular stickers or large objects that can interfere.
  5. Tap the bumper to ensure it can bounce back properly.
  6. Try restarting the robot vacuum and testing again.
  7. If the problem persists, please contact after-sales service for assistance.

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