If the mop pad of the Xiaomi Robot Vacuum X20 Max falls off, please follow these steps to address the issue:
1. Check both the mop pad and the holder for any signs of damage or wear. Ensure that the mop pad is clean and free of debris that prevents it from attaching properly;
2. Detach and reattach the water tank and mop pad, ensuring all parts are securely in place;
3. If the mop pad cannot be attached well or is uneven after multiple uses, please replace it with a new mop pad or mop pad holder in time.