If the Xiaomi Smart Band 9 Pro fails to update, please refer to the following details:
1. During the update process of the Xiaomi Smart Band 9 Pro, if a disconnection (Bluetooth connection) occurs, the installation package transmission will fail. In this case, the band will restart and display the information that update failed, reverted to the previous version;
2. If the APP has not performed other operations and is still on the update transmission interface, once the device reconnects and completes synchronization, please move to a location with fewer Bluetooth and Wi-Fi devices and retry to reduce interference from other signals. If the APP has returned to the main function interface, please move to a location with fewer Bluetooth and Wi-Fi devices, check the available updates, and initiate the update again;
3. When the update is initiated again, the band will continue to update;
4. If the update fails again while in Bluetooth connection status, it is recommended that you reset the device (this operation will unbind the band) and rebind to the phone. After both the phone and device have restarted, re-pair the band with the APP to attempt the update again;
5. Keep the band and phone close together, and follow the update prompts. Stay at Mi Fitness APP's update interface. Please be patient and wait for the update to complete.