What to do if the Xiaomi Body Composition Scale S400 fails to upgrade?

For this issue, you can refer to the following methods:
1. When upgrading, ensure the scale has sufficient power;
2. Please do not measure or press the scale during the upgrade process;
3. Please ensure that the Mi Home/Xiaomi Home APP is running at the foreground and the mobile phone screen is always on;
4. If the APP is cleared by the background of the mobile phone, please open the Mi Home/Xiaomi Home APP, reconnect with the scale, and upgrade again;
5. During the upgrade process, the scale needs to be connected to the mobile phone.