How To Guide [STOCK][FULL-ROM] OxygenOS_11.3_A.20 EU DN2103 | Unbrick guide

[Raygen]

I might try that, but its a bit of a hassle, as i can only flash 1 ".Img", after that the mtkclient gives me an error, see the attached picture (it doesn't search for devices) . My solution was to completely reboot the PC with the Ubuntu usb, for every of the 4 image files all over from scratch. I have no ifea how to solve that error. (i also tried closing the mtkclient and restart it, or logg off and log back on in the user account.)

Did you tried to also turn off the phone and reboot it again in BROM mode for every image?

 

[Elaba]

Did you tried to also turn off the phone and reboot it again in BROM mode for every image?

Yes, tried many things . I started manually flashing each .img file from the firmware, 1 by 1. and between every file i had to reboot my pc completely to get the mtkclient working for 1 file at the time. I started with the biggest files and worked my way down to like 6 or 7 files. Everytime i rebooted the PC, i also tried booting the phone. But unfortunatly stayed in bootloop.
As this is very timeconsuming i started searching more info about the error i have on the mtkclient window . And found some code wich makes it possible to flash more .img files at the same time. So then i flashed all the firmware files at once, there were a few files wich failed to flash, i noted them down:

my_engineering.img
my_company.img
my_carrier.img
my_manifest.img
product.img
my_product.img
my_region.img
vendor.img

Currently the phone boots again, but there are issus with the security pasword, wich isn't saved

I own the Pac-Man edition and unfortunatly i can't find the Pac-man edition firmware , perhaps you have a link where i can find the android 11 European pac-man edition update.

FYI: I placed all .img files i extracted from the firmware .zip , into the mtklient folder and entered the next command in the mtkclient window: python mtk wl out.

Now i'm going to try to root again

Edit:
Rooting worked better this time, but during setting up my phone, i noticed i can't save a security pasword in the phone settings, to enable facial recognition and fingerprint..., now searching for the Official Pac-Man edition Full Rom to flash over everything DN2103

 

[Elaba]

Yes, tried many things . I started manually flashing each .img file from the firmware, 1 by 1. and between every file i had to reboot my pc completely to get the mtkclient working for 1 file at the time. I started with the biggest files and worked my way down to like 6 or 7 files. Everytime i rebooted the PC, i also tried booting the phone. But unfortunatly stayed in bootloop.
As this is very timeconsuming i started searching more info about the error i have on the mtkclient window . And found some code wich makes it possible to flash more .img files at the same time. So then i flashed all the firmware files at once, there were a few files wich failed to flash, i noted them down:

my_engineering.img
my_company.img
my_carrier.img
my_manifest.img
product.img
my_product.img
my_region.img
vendor.img

Currently the phone boots again, but there are issus with the security pasword, wich isn't saved

I own the Pac-Man edition and unfortunatly i can't find the Pac-man edition firmware , perhaps you have a link where i can find the android 11 European pac-man edition update.

FYI: I placed all .img files i extracted from the firmware .zip , into the mtklient folder and entered the next command in the mtkclient window: python mtk wl out.

Now i'm going to try to root again

Edit:
Rooting worked better this time, but during setting up my phone, i noticed i can't save a security pasword in the phone settings, to enable facial recognition and fingerprint..., now searching for the Official Pac-Man edition Full Rom to flash over everything DN2103

Another day of research went by, so far i haven't managed to fix the issue with the security phrase, to get fingerprint and facial unlock. I've tried to restore to one of the first TWRP backups i made a month ago, and even later ones, but all gave me bootloops. Been searching trough various treads on this forum and your name " Raygen " pops up here and there. I have quite alot of backup files from a month ago when i did the first root attempt, i have a backup from partitionsbackupper v1.3 and a twrp backup from my original rom. Not sure if i can use files from those backups to rebuild back to stock. I can't remember what my stock rom number was, but the box says its produced mid october and i remember i had 1 update when i bought it, and there was another one 2 weeks ago wich i avoided. Looks like this phone doesn't like to be rooted. Also i can't find any of the Pac-Man Rom's, and neighter the stock Nord 2 Incremental updates.

 

[Raygen]

Yes, tried many things . I started manually flashing each .img file from the firmware, 1 by 1. and between every file i had to reboot my pc completely to get the mtkclient working for 1 file at the time. I started with the biggest files and worked my way down to like 6 or 7 files. Everytime i rebooted the PC, i also tried booting the phone. But unfortunatly stayed in bootloop.
As this is very timeconsuming i started searching more info about the error i have on the mtkclient window . And found some code wich makes it possible to flash more .img files at the same time. So then i flashed all the firmware files at once, there were a few files wich failed to flash, i noted them down:

my_engineering.img
my_company.img
my_carrier.img
my_manifest.img
product.img
my_product.img
my_region.img
vendor.img

Currently the phone boots again, but there are issus with the security pasword, wich isn't saved

I own the Pac-Man edition and unfortunatly i can't find the Pac-man edition firmware , perhaps you have a link where i can find the android 11 European pac-man edition update.

FYI: I placed all .img files i extracted from the firmware .zip , into the mtklient folder and entered the next command in the mtkclient window: python mtk wl out.

Now i'm going to try to root again

Edit:
Rooting worked better this time, but during setting up my phone, i noticed i can't save a security pasword in the phone settings, to enable facial recognition and fingerprint..., now searching for the Official Pac-Man edition Full Rom to flash over everything DN2103

Another day of research went by, so far i haven't managed to fix the issue with the security phrase, to get fingerprint and facial unlock. I've tried to restore to one of the first TWRP backups i made a month ago, and even later ones, but all gave me bootloops. Been searching trough various treads on this forum and your name " Raygen " pops up here and there. I have quite alot of backup files from a month ago when i did the first root attempt, i have a backup from partitionsbackupper v1.3 and a twrp backup from my original rom. Not sure if i can use files from those backups to rebuild back to stock. I can't remember what my stock rom number was, but the box says its produced mid october and i remember i had 1 update when i bought it, and there was another one 2 weeks ago wich i avoided. Looks like this phone doesn't like to be rooted. Also i can't find any of the Pac-Man Rom's, and neighter the stock Nord 2 Incremental updates.

Nice job on reviving the phone and finding that handy command too! I've noted it in the instructions.

About the security settings not working, since the phone lives again now, have you tried restoring it again to stock with the "unlocked bootloader" procedure this time? Maybe that handful of partitions that didn't flashed with mtkclient can be the cause.
Also, since you have some old backups on hand, try to manually flash back the seccfg, nvcfg, nvdata, nvram, persist, proinfo, protect1, and protect2 partitions. These are usually the ones who cause camera, IMEI, and security issues like yours, if get corrupted.

About the Pac-man edition files, cannot help sorry. They're unavailable even on OxygenUpdater. I can only suggest you to ask around and find someone with your same model, from whom extract the update files and partitions needed.

 

[scarythib]

i've made a backup of my pac-man edition EU version on A16 with your tool.

 

[Elaba]

Nice job on reviving the phone and finding that handy command too! I've noted it in the instructions.

About the security settings not working, since the phone lives again now, have you tried restoring it again to stock with the "unlocked bootloader" procedure this time? Maybe that handful of partitions that didn't flashed with mtkclient can be the cause.
Also, since you have some old backups on hand, try to manually flash back the seccfg, nvcfg, nvdata, nvram, persist, proinfo, protect1, and protect2 partitions. These are usually the ones who cause camera, IMEI, and security issues like yours, if get corrupted.

About the Pac-man edition files, cannot help sorry. They're unavailable even on OxygenUpdater. I can only suggest you to ask around and find someone with your same model, from whom extract the update files and partitions needed.

Yes, i did a restore to the first TWRP backup i made when it got freshly rooted in november. Actually the failed root session, cause after that 1st backup it was in a bootloop. Also tried all the other ones wich all bootlooped. Yesterday when i got it working again, i also made a backup, wich i then restored to after trying the other restore points. That last backup with the regular nord 2 rom, also didn't restore perfectly, many visual bugs. So there's alot of wrong with these backups and such.
The files you mension are not .img files, so how do i flash those? In twrp i saw a restore page where i can manually select different partition directories, but not sure wich file goes where, and what to do if they are not .img files.

So currently my phone is in a bootloop state, but is unlocked and has twrp.

 

[scarythib]

Yes, i did a restore to the first TWRP backup i made when it got freshly rooted in november. Actually the failed root session, cause after that 1st backup it was in a bootloop. Also tried all the other ones wich all bootlooped. Yesterday when i got it working again, i also made a backup, wich i then restored to after trying the other restore points. That last backup with the regular nord 2 rom, also didn't restore perfectly, many visual bugs. So there's alot of wrong with these backups and such.
The files you mension are not .img files, so how do i flash those? In twrp i saw a restore page where i can manually select different partition directories, but not sure wich file goes where, and what to do if they are not .img files.

So currently my phone is in a bootloop state, but is unlocked and has twrp.

You should better go to stock. Flash stock recovery in fastboot. Boot to recovery. Format data.

Then you can update your phone. If you have issue with camera or fingerprint and you have a nandroid backup check this post from pankspoo : https://xdaforums.com/t/how-to-solve-boot-img-corrupt-and-camera-finger-print-fc.4366975/

 

[scarythib]

Here is my backup made with Raygen's partitionsbackupper tool :
A.16 EU Stock OnePlus Nord 2 5G Pac-Man Edition
You can surely restore with Raygen tool.
Then send your twrp backup file to your phone >flash recovery twrp > Boot to recovery > restore > and only check persist and persist image from your nandroid backup if you have issue with camera and fingerprint

 

[Raygen]

Yes, i did a restore to the first TWRP backup i made when it got freshly rooted in november. Actually the failed root session, cause after that 1st backup it was in a bootloop. Also tried all the other ones wich all bootlooped. Yesterday when i got it working again, i also made a backup, wich i then restored to after trying the other restore points. That last backup with the regular nord 2 rom, also didn't restore perfectly, many visual bugs. So there's alot of wrong with these backups and such.
The files you mension are not .img files, so how do i flash those? In twrp i saw a restore page where i can manually select different partition directories, but not sure wich file goes where, and what to do if they are not .img files.

So currently my phone is in a bootloop state, but is unlocked and has twrp.

To restore a TWRP backup you need to copy the backup back on the phone memory, in the TWRP folder, and then choose that backup from the Restore option in TWRP

 

[Elaba]

To restore a TWRP backup you need to copy the backup back on the phone memory, in the TWRP folder, and then choose that backup from the Restore option in TWRP

Yes i know that, But i was looking at the files inside that backup folder. To pick a few out if needed and flash those files seperatly. I will have another try next week. Thanks for the help so far.

 

[Elaba]

Here is my backup made with Raygen's partitionsbackupper tool :
A.16 EU Stock OnePlus Nord 2 5G Pac-Man Edition
You can surely restore with Raygen tool.
Then send your twrp backup file to your phone >flash recovery twrp > Boot to recovery > restore > and only check persist and persist image from your nandroid backup if you have issue with camera and fingerprint

Is this a fresh backup? (no personal settings) thx

 

[scarythib]

Is this a fresh backup? (no personal settings) thx

Raygen said that his tool doesn't keep personal data. Be sure you have your nandroid backup on your computer and keep it in a safe place cause persist and persist image are linked to your phone.

 

[DeMiane]

Hello! Came to you from the Russian forum. Faced a problem. After rooting and unlocking the bootloader, everything was fine. TWRP is worth it. I installed LukeyPatcher, rebooted, the phone hangs in the bootlop, what should I do in order not to aggravate the situation? It enters the recovery. The latest firmware was updated on the drain before all actions. Thank you!
p.s. sorry for the english.

 

[Raygen]

Is this a fresh backup? (no personal settings) thx

Raygen said that his tool doesn't keep personal data. Be sure you have your nandroid backup on your computer and keep it in a safe place cause persist and persist image are linked to your phone.

Yup, my tool doesn't backup the data partition, but DOES backup every other partition. Including seccfg, nvcfg, nvdata, nvram, persist, proinfo, protect1, and protect2. @Elaba be sure to delete these partition from @scarythib's backup before flashing. Should be good then

Hello! Came to you from the Russian forum. Faced a problem. After rooting and unlocking the bootloader, everything was fine. TWRP is worth it. I installed LukeyPatcher, rebooted, the phone hangs in the bootlop, what should I do in order not to aggravate the situation? It enters the recovery. The latest firmware was updated on the drain before all actions. Thank you!
p.s. sorry for the english.

That usually happens with Magisk stable (atm I'm on Magisk canary), or by not formatting data with the stock recovery after flashing the stock firmware.
If you still got everything backed up, try formatting data and then go with magisk canary. See if that works better

 

[DeMiane]

That usually happens with Magisk stable (atm I'm on Magisk canary), or by not formatting data with the stock recovery after flashing the stock firmware.
If you still got everything backed up, try formatting data and then go with magisk canary. See if that works better

There is no backup. while there is an idea to remove magisk and reflash the boot .. can tell me where the boot is?

 

[Raygen]

There is no backup. while there is an idea to remove magisk and reflash the boot .. can tell me where the boot is?

I don't understand the question sorry, do you mean the patched boot image with Magisk canary?

 

[AdamBarath]

Thank you very much, great work out there!

 

[DeMiane]

I don't understand the question sorry, do you mean the patched boot image with Magisk canary?

The bootloader is unlocked, the root is received, after installing LukeyPatcher received a bootlap ... TWRP is worth

 

[DeMiane]

....

 

[Elaba]

seccfg, nvcfg, nvdata, nvram, persist, proinfo, protect1, and protect2

So i've tried the instructions said previously, Wipe data beforehand, Used that Partisionsbakupper file form scarythib , and added boot, recovery , seccfg and vbmeta from my backup, but the files i quoted seem to be missing in my old Partisionsbackupper file (made with your tool v1.3) , Currently still in Bootloop (and again locked bootloader) , Also when i flashed scarythib his backup, i got an error for System and ODM partistions wich are missing, and it skipped those files.