[GUIDE] How to restore IMEI, Baseband, MAC, fix NVRAM WARNING and fix NVDATA CORRUPTED on MERLIN ? (Redmi Note 9 / Redmi 10X 4G)

[Kaustubh Mishra]

Shas Dream 3.61 only for android 11

Stormbreaker 1.0
only for android 10

or you can make your own kernel

does stormbreaker 1.5 work ??

 

[Jssdje]

sir in what partition is the rsa key stored?

 

[Rlucifer.01]

Warnings:

- This guide requires the backup be done when the IMEI was present!
- 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.

What this guide does ?
- Restores IMEI.
- Restores Baseband/RADIO/Modem.
- Restores Wi-Fi MAC.
- Restores Bluetooth MAC.
- Fixes "NVRAM WARNING: ERR 0x10" error.
- Fixes NV Data corrupted error.
- Fixes unknown baseband.
- Fixes null IMEI.

How to backup ?
You can backup the listed partitions using TWRP, PBRP, DD, SP Flash Tool or anyway you want.
I suggest you to use your favorite tool.

How to restore ?
You can restore the listed partitions using TWRP, PBRP, DD, SP Flash Tool or anyway you want.
I suggest you to use same tool of backup.

Partition: nvcfg​

Description: This partition stores variable configs of NVDATA and NVRAM.​

Size: 32.768 KiB (32 MiB)​

Block: /dev/block/mmcblk0p11​

Start address: 0xa4a2000​

Length: 0x2000000​

Partition: nvdata​

Description: This partition stores variable data of secure and identifying infos for your device. Like IMEI, WiFi MAC, Bluetooth MAC, calibration data and others.​

Size: 65.536 KiB (64 MiB)​

Block: /dev/block/mmcblk0p12​

Start address: 0xc4a2000​

Length: 0x4000000​

Partition: nvram​

Description: This partition stores persistent data of secure and identifying infos for your device. Like IMEI, WiFi MAC, Bluetooth MAC, calibration data and others.​

Size: 65.536 KiB (64 MiB)​

Block: /dev/block/mmcblk0p21​

Start address: 0x19f00000​

Length: 0x4000000​

Partition: persist​

Description: This partition stores persistent data for factory reset protection. Like google account and miaccount/micloud.​

Size: 49.152 KiB (48 MiB)​

Block: /dev/block/mmcblk0p13​

Start address: 0x104a2000​

Length: 0x3000000​

Partition: proinfo​

Description: This partitions stores persistent data of default structure for NVRAM/RADIO/MODEM/BASEBAND.​

Size: 3.072 KiB (3 MiB)​

Block: /dev/block/mmcblk0p19​

Start address: 0x18200000​

Length: 0x300000​

Partition: protect1 (or protect_f)​

Description: This partition stores variable data of SIM/RADIO/MODEM/BASEBAND settings and infos.​

Size: 8.192 KiB (8 MiB)​

Block: /dev/block/mmcblk0p15​

Start address: 0x164a2000​

Length: 0x800000​

Partition: protect2 (or protect_s)​

Description: This partition stores variable data of SIM/RADIO/MODEM/BASEBAND settings and infos.​

Size: 11.640 KiB (11,36 MiB)​

Block: /dev/block/mmcblk0p16​

Start address: 0x16ca2000​

Length: 0xb5e000​

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

do you have the latest eng rom?

 

[VD171]

do you have the latest eng rom?

Doesn't matter the version of the engineering rom.
They all have the same utilities and purposes.

 

[Rlucifer.01]

Doesn't matter the version of the engineering rom.
They all have the same utilities and purposes.

I have tried all eng Rom that you give, they have same baseband, it did connect to signal but signal is so weak, maybe eng Rom with newest basband, even if i update to latest stock Rom and the baseband is updated it still doesnt help for better signal, i have tried to use md1img from another stock firmware but it doesnt have meta mode

 

[VD171]

I have tried all eng Rom that you give, they have same baseband, it did connect to signal but signal is so weak, maybe eng Rom with newest basband, even if i update to latest stock Rom and the baseband is updated it still doesnt help for better signal, i have tried to use md1img from another stock firmware but it doesnt have meta mode

https://xdaforums.com/t/baseband-im...for-merlin-redmi-note-9-redmi-10x-4g.4258919/

 

[Rlucifer.01]

https://xdaforums.com/t/baseband-im...for-merlin-redmi-note-9-redmi-10x-4g.4258919/

I have those file, but i tried it on eng it still doesnt boot into meta mode, except md1img from eng rom

 

[VD171]

I have those file, but i tried it on eng it still doesnt boot into meta mode, except md1img from eng rom

Exactly.

 

[Rlucifer.01]

I have those file, but i tried it on eng it still doesnt boot into meta mode

Exactly.

If that so, do you have any idea to calibrate the 4g RF on nvram?

 

[Nicolasjfb]

Hello guys, can anyone help me i need some guidance. My redmi 9 got hard bricked but i was able to repair him with SP flash tool. Sadly in the process i lost my IMEI. Also was able to repair him with Maui meta. Everything works fine, but now in WiFi list, i have this WiFi error called nvram warning 0x10. Im trying to fix ir but its seems Impossible. Already rooted the phone, trying to use some WiFi fix files but when i use the apk es file explorer, i follow tutorial but on data folder i dont find any nvram folder. I think its was deleted on the hard brick repair process. So i created a new nvram file with scatter file that was inside fastboot rom folder. Made some changes that were asked from a internet tutorial, and save the new nvram.img in the fastboot rom folder, I changed too some informations about scatter file. Some words that were written like none changed for nvram.img and false for true. Then I saved.
After that i flashed

with SP flash, ONLY the nvram file and everything went fine as you can see in the pictures. Once more i installed twrp, root, but when I go to the folder data, i still can't find nvram folder. I don't know what I'm doing wrong. As anybody have a solution for this?

 

[Rlucifer.01]

Hello guys, can anyone help me i need some guidance. My redmi 9 got hard bricked but i was able to repair him with SP flash tool. Sadly in the process i lost my IMEI. Also was able to repair him with Maui meta. Everything works fine, but now in WiFi list, i have this WiFi error called nvram warning 0x10. Im trying to fix ir but its seems Impossible. Already rooted the phone, trying to use some WiFi fix files but when i use the apk es file explorer, i follow tutorial but on data folder i dont find any nvram folder. I think its was deleted on the hard brick repair process. So i created a new nvram file with scatter file that was inside fastboot rom folder. Made some changes that were asked from a internet tutorial, and save the new nvram.img in the fastboot rom folder, I changed too some informations about scatter file. Some words that were written like none changed for nvram.img and false for true. Then I saved.
After that i flashed View attachment 5596451View attachment 5596453View attachment 5596455View attachment 5596457 with SP flash, ONLY the nvram file and everything went fine as you can see in the pictures. Once more i installed twrp, root, but when I go to the folder data, i still can't find nvram folder. I don't know what I'm doing wrong. As anybody have a solution for this?

You need to activate Dev mode then on phone app click *#*#3646633#*#* go to connectivity tab and cds information and update Wifi Mac address from there if you can't find cds information on stock Rom try to flash eng Rom

 

[Nicolasjfb]

You need to activate Dev mode then on phone app click *#*#3646633#*#* go to connectivity tab and cds information and update Wifi Mac address from there if you can't find cds information on stock Rom try to flash eng Rom

Will try that. Thanks for the fast response, i wasn't expecting that. Just a question what the hell is dev mode? Some program like meta mode? I wrote the number that you gave it and it went to this page. I'm such a loser. Don't understand anything.



Edit: Dev mode = Development options? Is that? Already activated. I'm in the connectivity tab, now what? Don't see that cds information

 

[Rlucifer.01]

Will try that. Thanks for the fast response, i wasn't expecting that. Just a question what the hell is dev mode? Some program like meta mode? I wrote the number that you gave it and it went to this page. I'm such a loser. Don't understand anything.



Edit: Dev mode = Development options? Is that? Already activated. I'm in the connectivity tab, now what? Don't see that cds information

Well if you are on stock Rom, theres is not cds information, to update your Wifi Mac address you gonna need eng Rom

 

[Nicolasjfb]

Well if you are on stock Rom, theres is not cds information, to update your Wifi Mac address you gonna need eng Rom

Ok. No problem with that. I already have here eng rom. Used to recover my IMEI back. But after flashing with sp flash, what comes next? What am i supposed to inside meta mode? As i said o used to put IMEI back with maui meta and doesn't have lot of options to do.

 

[Rlucifer.01]

Goog luck , use *#*#3646633#*#* for update Wifi Mac address and Maui meta to write your IMEI then backup nvcfg, nvram, nvdata, protect1 and protect2 with any tool you have

 

[Nicolasjfb]

Goog luck , use *#*#3646633#*#* for update Wifi Mac address and Maui meta to write your IMEI then backup nvcfg, nvram, nvdata, protect1 and protect2 with any tool you have

Thank you very much. Let me see if i understood. I have to use that number in eng rom mode? Then go to connectivity mode and find cds and write my wifi mac address? Just st fixing the wifi mac address will give nvram folder back? Then i just put the Andress, use Maui meta for IMEI and then flash the normal rom with sp flash and after install twrp and make the backup?

 

[Rlucifer.01]

After updating your wifi mac address, there is should be no more nvram warning 0x10 on your wifi

 

[Nicolasjfb]

After updating your wifi mac address, there is should be no more nvram warning 0x10 on your wifi

Alright! But in that case i still will not be getting nvram folder back? I mean, because i have this nvram warning but my internet is working fine.

 

[Rlucifer.01]

As far as i know, Nvram Isn't folder it was a partition that contain data about your imei, mac wifi, mac bluetooth, i think you shouldn't worry about Nvram as long as your wifi and imei is normal then nvram should be fine

 

[Nicolasjfb]

As far as i know, Nvram Isn't folder it was a partition that contain data about your imei, mac wifi, mac bluetooth, i think you shouldn't worry about Nvram as long as your wifi and imei is normal then nvram should be fine

You're right. But i was thinking if i do what you say, write WiFi mac address, then IMEI recover with maui, then i could install TWRP make recovery still with eng rom instaled? And after that install normal Rom with sp flash, after that install TWRP again and install the backup made inside the normal rom? Or will backup made in eng mode be deleted after running the official rom? I could also backup the files inside an sd card.