Xiaomi 12 after update to miui 14 lags


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Members
Jan 22, 2023
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13
Welcome,
Patient Xiaomi 12 cupid EU
As in the topic after the update, the touch is stuck for a few seconds during quick operations. As if he didn't cover the frame.
I had miui 13 and something tempted me to update. He's getting mad with this problem.
I tried to upload the old soft on which the phone worked beautifully. The soft is loaded, the phone picks up but does not see the sim cards as if the newer modem did not allow to save the older one.

How to roll back the soft to miui 13 when there was no problem with the phone



Witajcie,
Pacjent Xiaomi 12 cupid EU
Jak w temacie po aktualizacji zacina się dotyk na kilka sekund podczas szybkich operacji. Jakby ram nie ogarniał.
Miałem miui 13 i coś mnie podkusiło na update. Dostaje już szału z tym problemem.
Próbowałem wgrywać stary soft na którym telefon pięknie chodził. Soft się wgrywa, telefon podnosi ale nie widzi kart sim jakby nowszy modem nie pozwalał zapisać starszego.

Jak cofnąć soft do miui 13 kiedy to nie było żadnego problemu z telefonem
 
I've got the same lag the first day. But after finishing I stalling all my apps and power off and on my phone, it started behaving normally without lag.
 
How to roll back the soft to miui 13 with working sim card?

Wysłane z mojego 2201123G przy użyciu Tapatalka
 
Unfortunately the downgrade procedure involve formatting data partition.
To be honest on my devices, when I wanted to downgrade the Miui version from a major to another major version, I always flashed the downgraded stock major version of official Global stock firmware, using official Mi flash tool without locking the bootloader and a fastboot image downloaded from: https://xiaomifirmwareupdater.com/archive/miui/cupid/
Then I proceed with initial steps for flashing the xiaomi.eu ROM from scratch: https://xiaomi.eu/community/threads/miui-13-stable-release.64441/