Database Develop

Help me with antirollback issue with CC9 (pyxis)

My CC9 is currently on Stock MIUI 12.0.2.0 stable (QFCCNXM)
Android version: 10
I checked ARB via fastboot commant and got "anti:1"
My question is .... "is there any way to flash Android 10 based EU custom rom running MIUI 11.0.3.0 ?"
That means I want to downgrade from stock miui 12 (Android 10) to custom miui 11 (based on Android 10) or custom miui 11 (based on Android 9)
via TWRP.
Is this will cause hard brick?
Please, someone clear this confusion...

Hi.
Read this article: https://www.xda-developers.com/xiaomi-anti-rollback-protection-brick-phone/
You can safely downgrade the firmware version on this device.

brigudav said:
Hi.
Read this article: https://www.xda-developers.com/xiaomi-anti-rollback-protection-brick-phone/
You can safely downgrade the firmware version on this device.
Click to expand...
Click to collapse
Thanks for the response. I know how ARB works in switching official miui.
We can check the antiroll back index from fastboot rom image (from bat file) but since I want to move from an official miui12 to a custom xiaomi.eu miui11 so how can I check that xiaomi.eu rom's ARB index? because custom roms are recovery rom to to be flashed from within twrp. Is there a way to check ARB index of an recovery rom?
This is where I got confused that switching from official miui to a custom miui will still get affected by ARB or not...

Rom switch from MIUI 12 to MIUI 12.5

I was wonder how I should move from MIUI 12 Indian version to MIUI 12.5 Global/eu version. should I do clean flash or dirty flash will work as well?

To change regions you need to flash a fastboot ROM.
See the answer I've just written on another thread for details of flashing fastboot ROMs.
Need help to change rom from global to eu ( for nfc purposes ) ( I'm a newbie )
Hi guys ! I have my k20 pro from 2019 and I never had access to any apps like netflix or mcdonals cause of some insecure software idrk to be honest. Anyways I want to use nfc and I actually can't . Did some research and just found out about eu...
forum.xda-developers.com

Need help flashing Global ROM on my Chiniese Mi CC9

Hey guys, so I have a Xiaomi CC9 currently running Chinese MIUI12 based on Android 11. (MIUI -V12.5.5.0.RFCCNXM)
Now I want to flash Global ROM on this phone. So, I found 2 kind of ROMs - fastboot Rom and Recovery Rom. Which one do I need to download and what do I basically need to do from this point on?
(ps: I've successfully unlocked the bootloader yesterday)

Question Mi 11 ultra downgrade

Hello.
Good day to everyone.
I got the mi 11 ultra Chinese version and I flashed the MIUI 13. Before it had global stable 12.5. (i bought it with that rom preinstalled and unlocked).
I installed the MIUI 13 china because I use Google pay and I wanted a locked rom but i Iive in Europe so Its very frustrating to set up the Chinese version. I want a phone for everyday use but i didn't know that It was china version and I couldn't use Google pay when I bought it.
The phone is Chinese MIUI 13 locked totally as stock.
I want to unlock and go back to MIUI 12 either on global or eea rom. Which one u suggest. I read about Xiaomi eu rom but I don't want to mess up with my phone Everytime I have to update it except if Xiaomi eu rom update itself like global or eea rom.
What u think?
And how to do it?

unlock bootloader then flash xiaomi.eu stable version (miui 13) , you can search and follow instructions on xiaomi.eu
Very stable for me

hoangtu2410 said:
unlock bootloader then flash xiaomi.eu stable version (miui 13) , you can search and follow instructions on xiaomi.eu
Very stable for me
Click to expand...
Click to collapse
Ist a downgrade from MIUI 13 Android 12( xiaomi.eu ) to MIUI 12.x Android 11 (Global) possible If the bootloader ist unlocked?

Mi ultras said:
Hello.
Good day to everyone.
I got the mi 11 ultra Chinese version and I flashed the MIUI 13. Before it had global stable 12.5. (i bought it with that rom preinstalled and unlocked).
I installed the MIUI 13 china because I use Google pay and I wanted a locked rom but i Iive in Europe so Its very frustrating to set up the Chinese version. I want a phone for everyday use but i didn't know that It was china version and I couldn't use Google pay when I bought it.
The phone is Chinese MIUI 13 locked totally as stock.
I want to unlock and go back to MIUI 12 either on global or eea rom. Which one u suggest. I read about Xiaomi eu rom but I don't want to mess up with my phone Everytime I have to update it except if Xiaomi eu rom update itself like global or eea rom.
What u think?
And how to do it?
Click to expand...
Click to collapse
Im still on the Miui12 12.5.20 eu stable and it works like a charm, i dont update to miui13 untill i see its more stable.
I see many people complain out there
Strange name miui13" beta stable", a stable beta hmmm

hoangtu2410 said:
unlock bootloader then flash xiaomi.eu stable version (miui 13) , you can search and follow instructions on xiaomi.eu
Very stable for me
Click to expand...
Click to collapse
Xiaomi eu miui 13 rom comes with saferypass preinstalled or i need to install it on my own? I use Googlepsy a lot.
Do u know something?

Yes, it's pre- installed.

Question Back from miui 13 to miui 12.5

Hello, i have couple days on my Mi 11 miui 13 EEA version and its not really good experience so far. Can i go safely back to miui 12.5? I mean can i use standard method (unlock bootloader, flash fastboot rom via mi flash, lock bootloader) i did it many times, but just wanna avoid any problem because different version of android on each version of miui.
Thanks for advice

There should not be any issue )

Your phone's QC maybe broken, that's a bug ( from miui 13 back to any version before miui 13)

This is first version of miui for my device. I can go back only to miui 12.5 with A11.