Guys, MI 9 with STABLE (10.2.16.0) here.
Why I can't update by OTA?
In my case, OTA didn't find any update. I updated from my previuos xiaomi.eu miui 10 stable, with TWRP as usual.
Here my steps.
- updated twrp from fastboot with latest 3.3.1-42 Mauronofrio
- rebooted to miui, then copied miui 11 mi9 stable to memory phone, from my pc by usb as usual
- booted to twrp. Decoded/unencrypted data partition using my pin
- from twrp, wiped Dalvik/Art Cache and Cache
- from twrp installed miui 11
- rebooted... waited about 10 minutes. Yes has took a lot of time to reboot, probably it had to rebuild cache.
- Miui 11 now on the go . I waited some minutes to leave all apps to resync their data (contacts and so on wasn't immediately available, some issues on ringer.) then update all apps from Play Store, then rebooted again.
- Miui 11 is now working. All my apps and data are availables, ringers and contacs works as usual... I hope they will continue to works even for the future.