If the Xiaomi Body Composition Scale S400 crashes, you can refer to the following troubleshooting steps:
1. Remove the battery and power it on again to check if it returns to normal;
2. If the issue still exists, it is recommended to rebind after reset;
3. If the issue has not been resolved, please contact customer service for assistance and submit the feedback by opening the [Xiaomi Home/Mi Home] APP >> [Profile] >> [Help & Feedback].