[DISCUSSION] How to write and recover the IMEI for SLOT 1 and SLOT 2 in MERLIN ? (Redmi Note 9 / Redmi 10X 4G)

[VD171]

WARNINGS:​

- Possible risk of data loss ! Backup your files and contents !
- NO dongle and NO box is required.
- NEVER try to flash in "format all" mode ! Otherwise, you will LOSE all secure and identifying infos for your device. Like IMEI.
- Keep your backup files safe and secure ! If you can, encrypt them.
- Never try to share your backups or your security and privacy will be compromised.
- USE AT YOUR OWN RISK. I AM NOT RESPONSIBLE FOR YOUR ACTIONS.​

As we all know, we can not restore the IMEI for SLOT1.
But as we are already tired of seeing, every day are several people with this same problem.
So we are opening this thread to discuss possibilities for how to recover the IMEI for SLOT1 too.
If you have any idea or discovered something, share with us so we can discover new possibilities, methods and solutions.

Possible Method # 1:​

This method was released by HALABTECH. This method was tested by @jasmin811
The idea is simple. Flash the ENGINEERING ROM, write the IMEI in META MODE and then flash the CUSTOM ROM: PixelPlusUI or PixelExperience.
Steps:
#1. Flash the ENGINEERING ROM:

[V1][ENGINEERING][ROM] OFFICIAL Engineering Firmware for MERLIN (Redmi Note 9 / Redmi 10X 4G)

Version 1 Works with: - Xiaomi Redmi Note 9 - Xiaomi Redmi 10X 4G Build Date: 2020/05/13 Android Version: QP1A.190711.020 Display ID: AL2522-Merlin-V039-Q-0513 Build Fingerprint...

forum.xda-developers.com

#2. Enter in META MODE and write the IMEI for both slots (SLOT1 and SLOT2):

How to use Modem Meta Tool to Flash or Write IMEI on Mediatek Device

Step-by-Step guidelines to Flash, Write or Fix IMEI on devices running on Mediatek Chipset using the Modem Meta Tool.

androidmtk.com

#3. Backup the partition NVDATA:

[GUIDE] What should I backup before trying to customize my MERLIN device ? (Redmi Note 9 / Redmi 10X 4G)

WARNINGS: NEVER try to flash in "format all" mode ! Otherwise, you will LOSE all secure and identifying infos for your device. Like IMEI. Keep your backup files safe and secure ! If you can, encrypt them. Never try to share your backups or your...

forum.xda-developers.com

#4. Flash the CUSTOM ROM:
PixelPlusUI: https://forum.xda-developers.com/t/...ui-for-redmi-note-9-merlin-merlinnfc.4254885/
PixelExperience: https://forum.xda-developers.com/t/...-redmi-note-9-redmi-10x-4g-aosp-beta.4236913/
#5. Restore the partition NVDATA.
#6. Flash the version AL2522-Merlin-V039-Q-0513 of the partition MD1IMG:

[BASEBAND][IMG][STOCK][MD1IMG] MODEM Image Partition for MERLIN (Redmi Note 9 / Redmi 10X 4G)

Original Stock MD1IMG.IMG for MERLIN Works with: - Xiaomi Redmi Note 9 - Xiaomi Redmi 10X 4G What is it? This image partition contains the MODEM/BASEBAND/RADIO. How to flash it? fastboot flash md1img md1img.img (Engineering)...

forum.xda-developers.com

#7. Boot to the system and then reboot.
Done.



Do you need help with your MERLIN device ?
Read this FAQ: https://forum.xda-developers.com/t/...for-merlin-redmi-note-9-redmi-10x-4g.4225163/

 

[VD171]

Reserved.

 

[jasmin811]

Hi guys,
This method works pretty well with custom rom pixel experience for note9 merlin.
I'm still looking a way to get it work with stock roms.
For this method we need one file to make it work properly,it calls 'patched md1img'.
I will make later more details about it how it is working and I will upload this file later.

 

[akbarshoxdedamirzayev]

Dual ime working only on custom rom?

 

[jasmin811]

for now yes

 

[akbarshoxdedamirzayev]

for now yes

Must be rom PixselPlusUi?
This method working on another custom roms?

 

[VD171]

Must be rom PixselPlusUi?
This method working on another custom roms?

I'm not sure.
Choose any other custom rom, try this method and let us to know too

 

[akbarshoxdedamirzayev]

I'm not sure.
Choose any other custom rom, try this method and let us to know too

Thank you i will be test on xiaomi.eu rom
I will share the result with you

 

[VD171]

Thank you i will be test on xiaomi.eu rom
I will share the result with you

Allright, thanks.
Good luck

 

[jasmin811]

no,it will not work without patched file i mentioned before,if it is ok with Vd171 that i upload it when i make new thread.

 

[VD171]

no,it will not work without patched file i mentioned before,if it is ok with Vd171 that i upload it when i make new thread.

Did you try with other md1img files?

 

[jasmin811]

Did you try with other md1img files?

yes,i tried it is not working.

 

[VD171]

yes,i tried it is not working.

Here, you can find many versions of the MD1IMG, including the AL2522-Merlin-V039-Q-0513 of the ENGINEERING ROM:

[BASEBAND][IMG][STOCK][MD1IMG] MODEM Image Partition for MERLIN (Redmi Note 9 / Redmi 10X 4G)

Original Stock MD1IMG.IMG for MERLIN Works with: - Xiaomi Redmi Note 9 - Xiaomi Redmi 10X 4G What is it? This image partition contains the MODEM/BASEBAND/RADIO. How to flash it? fastboot flash md1img md1img.img (Engineering)...

forum.xda-developers.com

 

[akbarshoxdedamirzayev]

Here, you can find many versions of the MD1IMG, including the AL2522-Merlin-V039-Q-0513 of the ENGINEERING ROM:

[BASEBAND][IMG][STOCK][MD1IMG] MODEM Image Partition for MERLIN (Redmi Note 9 / Redmi 10X 4G)

Original Stock MD1IMG.IMG for MERLIN Works with: - Xiaomi Redmi Note 9 - Xiaomi Redmi 10X 4G What is it? This image partition contains the MODEM/BASEBAND/RADIO. How to flash it? fastboot flash md1img md1img.img (Engineering)...

forum.xda-developers.com

which section(partition )is responsible for imei security(nv data corrupted)


If dual slot write on ENG rom its working
But when flashing stok rom
Give nv data corrupted on recovery
I mean if we are write which partition frol eng rom maybe its working on stok rom ?
It's possible?

But i don't know which partition responce for sim 1 slot protect

 

[jasmin811]

which section(partition )is responsible for imei security(nv data corrupted)


If dual slot write on ENG rom its working
But when flashing stok rom
Give nv data corrupted on recovery
I mean if we are write which partition frol eng rom maybe its working on stok rom ?
It's possible?

But i don't know which partition responce for sim 1 slot protect

It is not working in eng. rom imei 1 only imei 2

 

[VD171]

which section(partition )is responsible for imei security(nv data corrupted)


If dual slot write on ENG rom its working
But when flashing stok rom
Give nv data corrupted on recovery
I mean if we are write which partition frol eng rom maybe its working on stok rom ?
It's possible?

But i don't know which partition responce for sim 1 slot protect

You can write both imei using the engineering rom.
But you can't use both imei on stock rom.
If you want to use both imei, you need to read carefully and follow the guide.
Both imei will work only in the custom rom: PixelPlusUI or PixelExperience.
Good luck

 

[st3v3]

Anyone know if i can run the meta tool via VMWare windows? or if theres a osx version of it?

Ive got the rom installed via flash_all, screen goes black (assuming powered off) but it keeps coming up with a connect to windows or mac that vm does with usb connections and the meta tool cant connect

update: fixed the constant connections although the meta tool still cant see it, installed the unsigned the drivers but still nothing connecting. Any thoughts?

Seems to be able to see it in device manager

 

[jasmin811]

You can write both imei using the engineering rom.
But you can't use both imei on stock rom.
If you want to use both imei, you need to read carefully and follow the guide.
Both imei will work only in the custom rom: PixelPlusUI or PixelExperience.
Good luck

partition "proinfo" is about imei

 

[jasmin811]

Anyone know if i can run the meta tool via VMWare windows? or if theres a osx version of it?

Ive got the rom installed via flash_all, screen goes black (assuming powered off) but it keeps coming up with a connect to windows or mac that vm does with usb connections and the meta tool cant connect

update: fixed the constant connections although the meta tool still cant see it, installed the unsigned the drivers but still nothing connecting. Any thoughts?

Seems to be able to see it in device manager View attachment 5287291

you need correct drivers,this one won't work.Needs to be mediatek da vcom usb driver not mtk usb.

 

[akbarshoxdedamirzayev]

partition "proinfo" is about imei

proinfo?
i mean for imei responce partiton
nvdata
nvram