First Install :
Please download the fastboot firmware (MIUI 10/Pie) for the Mi 9 Lite and flash it before using LineageOS 16.0 (here)
This LineageOS 16.0 is based on android 9 (pie) firmware not android 10 !
- Download the latest build from the link below , with the custom Google apps for LineageOS 16.0 (I'm sure you will do this)
- Reboot to TWRP recovery
-
Wipe Data (then, go /data delete everything except /media folder
)
- Flash the build, then reboot again to TWRP (some stuff of mount/unmount needs to be reinitialized).
- Flash the custom GApps + GCam if you want (for sure you will download it)
(addon-su and busybox already included)
- Reboot
- Download Google Playstore.apk and Google Play Services.apk (apkmirror) from your device or your PC. Install them !
- Give all permissions for Play Services from your app manager (be sure that options are enabled too for location)
- Enter your account and download all google apps you need
(for me, it doesn't make sense flashing opengapps everyday if all apps can be automatically updated from Playstore!)