If the firmware upgrade for your Xiaomi Robot Vacuum X20+ fails, please refer to the following conditions:
1. Ensure the robot vacuum is docked on the all-in-one station during the upgrade process;
2. Battery level must be above 15% to proceed with the firmware update. If the battery is too low, allow the robot vacuum to charge before attempting the upgrade again;
3. Check your home Wi-Fi network to ensure it is stable and connected. A weak or unstable network can interrupt the update process;
4. Do not operate or move the robot vacuum while it is updating. Any interruption during the upgrade can cause failure or delays;
5. If the update continues to fail, try restarting your router and the robot vacuum, then attempt the upgrade again;
6. For persistent issues, submit feedback through the Xiaomi Home App for further assistance.
Friendly tips:
During the upgrade, all the robot vacuum's buttons will flash white as an indicator. This is normal.