I update today to 8.8.23 un my Redmi Note 4 (mtk) but when the update process finished, the screen is black, and no work never. I had to return to the last update 8.8.9.
Its really a long time ago i used twrp to get the eu rom on my mi4, after that i updated everytime with select the latest xiaomi.eu_multi_HM4_.... zip file.
never had a problem, everytime i get a notification i started downloading and installed the update, except the one I installed yesterday
black screen UI is stopped
What i said it a long time ago and my old brains cant figure it out anymore .
I download adb twrp the latest Rom
After fastboot boot twrp.img, the phone reboot and after a while again black screen UI is stopped.