Why does the Xiaomi Robot Vacuum X20 Max fail to avoid some obstacles like low chairs with wheels?

Question

Accepted Answer

If the Xiaomi Robot Vacuum X20 Max fails to avoid some obstacles like low chairs with wheels, please refer to the following aspects:
1. The robot’s laser and obstacle sensors are designed to detect objects above a certain height. Some dark-colored, highly reflective surfaces, transparent objects (such as glass walls), small table and chair legs, and some low obstacles, or obstacles located in the sensor's blind spots, may not be detected, potentially leading to collisions.
2. Furniture with wheels may shift when lightly touched. This movement can interfere with real-time obstacle recognition and avoidance.
3. When ambient light is weak, the ability to recognize these types of objects—such as fabrics, power cords, shoes, bases, and weighing scales—decreases. These are normal phenomena and do not indicate a product defect.
4. Chair legs and wheels are often slim or irregularly shaped, which can reduce detection accuracy compared to larger, solid obstacles.
5. If the avoidance still fails after ruling out the above reasons, it is recommended to visit your local after-sales service center for further inspection.