Quick Info

Ok, but where do i have to flash it? (Recovery, boot, etc)

Your solution works only if the phone is rooted?

I wonder if your solution would fix network switching issue I have? I cannot get data to work when I go underground by subway. The phone does not switch from band 38 (above ground) to band 1 (under ground) unless I toggle Airplane mode for 2 seconds at least. After this everything is fine.
Having my bootloade unlocked it would be an easy fix for my issue. I already tried flashing Oreo chinese modem but issue is still present...

Sorry but I do not agree with this method. Phone is a few months old and this issue ocurrs after Pie update.

I wonder if your solution would fix network switching issue I have? I cannot get data to work when I go underground by subway. The phone does not switch from band 38 (above ground) to band 1 (under ground) unless I toggle Airplane mode for 2 seconds at least. After this everything is fine.
Having my bootloade unlocked it would be an easy fix for my issue. I already tried flashing Oreo chinese modem but issue is still present...

after flashing Android 10 if anyone want to go back in pie.
WiFi and hotspot no connection could be face. don't panic
go to recovery put persist.img in storage go to flash img flash persist.img in persist it will fix it... you can also flash it via cmd in fastboot... I know I'm maybe not the first person to notice it but just wanna make sure no one going to think they brick their device or something... thanks

you'll know it instantly when there's no way out repairing corrupt persist partition that cause no wifi/sensor/camera focus/bt etc. persist can't be flashed without authorized account to flush at EDL mood thus spending money or without opening the device.

beware of flashing any other then the persist.img from the stock fastboot rom .and mount the persist partition before flashing the img file at recovery.

and one thing fastboot method or fastboot from cmd can't flash persist partition as its protected by xioami tobring hell upon us at country like BD
If your at ARB 3 you still can mi flash to flash in EDL mood but at ARB4 your done for as you may already know that

---------- Post added at 11:17 PM ---------- Previous post was at 11:12 PM ----------



This is not a problem with persist rather its modem Issue.. after unlocking bootloader try different farmware/rom and the issue will be gone .

---------- Post added at 11:18 PM ---------- Previous post was at 11:17 PM ----------



vaia cmd fastboot will not work only flashing .img from recovery after mounting the partition is real .