[Android Software/Hacking General [Developers Only]] Ammar128:
I kept searching a lot and I found a way.

You can transform your device into the RU version and then rollback to the A.15 version.

This worked with a realme 11 4g with the KZ firmware with and now I have unlocked bootloader

This worked for me. I'm not responsible if you brick your device

Go to About device -> Version -> Build number

- If your device is newer than A.15 or android 14 you need to rollback to android 13.

- If your device is A.15 you don't need to rollback

- If your device is lower than A.15 update to the A.15 version.

You need to download the firmware of your device the ( MEA version in this case ) and the firmware of the RU version.

name both of them ota.zip for convenience put the RU ota.zip in the Documents folder and the MEA version in the root directory of your internal storage (or anywhere other than Documents).

then to activate the abitlity of local update on your phone. activate developer options, disable wifi and mobile data, look for Software update and Download manager and clear their data and cache. Now if you go to software updates in About device you will find the local install option available.

View attachment 6117312

- Now since the local updater checks for the region of the firmware you need to do this.

1- open a file manager in a floating window

2- click local install select the firmware of your region but don't click extract.

3- in the file manager move the ota.zip of your region ( that you chose ) to any where and replace it with the ota.zip of the RU version.

4- now you can press extract.

Congrats now your device is Russian.

Now download the rollback of the A.15 from here https://download.c.realme.com/flash...RMX3636_11_A_OTA_0150_all_c66142_00110111.zip and simply install it using local install and then extract.

Your phone data will be erased and you will go back to android 13.

Now to install the firmware of realme 10 4G you need to install an updater I tried the Local install in settings and didn't work.

Now download the firmware of realme 10 4G. download this version RMX3630_11_C.20. you download it from here https://gauss-componentotacostmanua...24/01/12/6ef8c8d1b38040afbe0f0bd03e20098e.zip

on your computer using 7-zip open the zip file of RMX3630_11_C.20 and in payload_properties.txt modify this line

oplus_update_engine_verify_disable=0

modify it from 0 to 1

install this updater OPLocalUpdate.apk on the A.15 version you rolled back to I attached it bellow.

name both the A.15 and the realme 10 C.20 firmware to ota.zip and move them to your phone. put the A.15 zip in the root of internal storage and C.20 somewhere else.

open file manager in floating window.

click on the ota.zip in OPLocalUpdate but don't proceed.

replace the A.15 zip with the C.20 zip in the file manager

now proceed with OPLocalUpdate.

- Your device is now realme 10 4G.

Now install deeptest.apk and start deeptesting.

then after being approved tap on "start deep test"

your device will reboot in bootloader mode

simply do

fastboot flashing unlock

and press volume up

then

fastboot reboot

Congrats your device bootloader is unlocked.

You can go back to the A.15 version of your realme 11 with same OPLocalUpdate method.

Just make sure to modify the oplus_update_engine_verify_disable line and make it 1 in the A.15 zip.

I got the way of changing region from this post

https://xdaforums.com/t/change-region-via-full-ota.4535659/

And the idea of transforming into realme 10 from this forum on 4dpa

Realme 11 4G - Официальные прошивки - 4PDA

Realme 11 4G - Официальные прошивки

4pda.to

If you have any further question ask me.