My Problems after switching to MIUI10:
1. manual mail retrieval is no longer working - with each setting they come automatically!
new mail accounts can no longer be created as POP3 - old POP3 working! new accounts with the same settings will not be connected to the mail server!!!
2. no changes to the homescreen possible - unlock does not remain
these problems are since the dirty flash on _8.7.19_v10-7.0 disappeared. For this I can not change the tones anymore, but still the sound set in Whatsapp sounds! At the moment I stay with MIUI10.
On the home screen, the providers are no longer displayed, only the signal strengths.
There is an interest calculation in the calculator, which calculates incorrectly by 10,000! either it does not use this feature or all are too stupid to notice the mistake - ingbrzy thinks it's only a factor of 10, which should go back to school!
The return to MIUI9 is only possible with format DATA - otherwise one hangs on boot (waited over 1 hour) - Warning in TWRP is format DATA including internal memory! (not test with 8.7.19, but many users already report similar problems when installing MIUI10 )
The MiUI 3-Way Reboot Menu has been taken over by ********, but otherwise there is no reason to change!