If the firmware upgrade of the Redmi Watch 5 Lite fails, please refer to the following details:
1. The network is disconnected during the download of the upgrade package by the APP, which causes the download of the upgrade package to fail;
2. When the APP pushes the upgrade package to the watch, the distance between the watch and the mobile phone is too far, which causes the transmission to be interrupted;
3. The power of the watch is too low and the watch automatically shuts down during the upgrade process. After the watch fails to upgrade, it will automatically restart. After it is turned on, the watch can still be used, however, the version before the upgrade is maintained. You can try the upgrade again after ensuring that the watch has sufficient power and the download of the upgrade package is completed.