What to do if the Xiaomi Robot Vacuum S40 can't be turned on?

If the Xiaomi Robot Vacuum S40 cannot be turned on, please refer to the following steps to troubleshoot:
1. Check if the power of the device is insufficient. Please charge it on the charging dock before use;
2. Examine the charging contacts on both the robot vacuum and the dock for any dirt or debris. Clean them gently with a dry cloth to ensure a good connection;
3. If the ambient temperature is too low (below 0°C) or too high (above 40°C), it will result in the issue of not powering on. Please use it in a proper environment of 0 to 40°C.
If none of the above methods resolve the issue, please contact the local after-sales service center for further assistance.