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What to do if the Xiaomi Robot Vacuum X20 Max does not clean some rooms?

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What to do if the Xiaomi Robot Vacuum X20 Max does not clean some rooms?

If this happens, please upgrade the robot vacuum to the latest version and then check the following details:
1. Check whether the partition is wrong, and you can adjust the room partition on the Mi Home/Xiaomi Home APP in time;
2. Check whether the room door is closed and cannot be entered;
3. Check whether there is a threshold in the room, and whether the robot vacuum can go through the obstacles. It is recommended to add an auxiliary pad to make it climb the obstacles;
4. Check whether there is a dark black door stone in the room, and the robot vacuum will misidentify it as a cliff. It is recommended to wipe the cliff sensor or change the ground color.