What to do if the Xiaomi Smart Band 9 Active cannot reconnect to the Mi Fitness APP?

To troubleshoot the issue, please refer to the following steps:
1. Check whether the Mi Fitness APP is the latest version and update it to the latest version;
2. Check whether all permissions of the Mi Fitness APP have been granted, especially the Bluetooth connection permission;
3. Check if the Bluetooth on your phone is turned off and turn it back on;
4. Check whether the distance between the band and the mobile phone is too far, causing the disconnection. Make sure the Bluetooth of the mobile phone is turned on, open the Mi Fitness APP and tap to connect manually.