How to upgrade the system firmware of Redmi Watch 2 Lite?
The watch will be updated with subsequent update packages pushed through Mi Fitness App.
In Mi Fitness App - Profile - More Settings - Check for updates
1. If you find a new version that can be updated, click to download the upgrade package.
2. After the upgrade package is downloaded, it will be automatically pushed to the watch, and the watch will be automatically upgraded and restarted after the upgrade package is received.
Notes:
1. the power of the watch needs to exceed 30% when upgrading.
2. Keep the watch connected to the phone during the upgrade process, and try to keep the watch near the phone.
https://www.mi.com/global/support/faq/details/KA-07273/