Question How to convert the T mobile 9 pro to the Global or NA OOS12?

[run93]

Hello all!

I am an user of OnePlus 9 pro (T-mobile). I don't want the pink startup screen, and I found a lot of resources here can help me on it.

I have backup all my personal data. I have unlocked the sim and bootloader (using the official unlock_token.bin). What is the next step?

I am lost here since there are some different posts (and some posted last year, I am not sure if this still work or not).

Thank you all!

 

[FizzyAps]

Flash a rom or custom oos

 

[TheGhost1951]

First off do not update to A12, make sure USB debug is enabled, auto updates disabled....do that and I hope you are on A11...if so, I have exactly what you need

 

[run93]

Flash a rom or custom oos

Any link for the rom?

 

[run93]

First off do not update to A12, make sure USB debug is enabled, auto updates disabled....do that and I hope you are on A11...if so, I have exactly what you need

I just unlocked the bootloader. It is now Android 11 with 05/01/2021 safety update. (11.2.4.4.LE5ACB). Could you please give the next step instruction?

 

[TheGhost1951]

I just unlocked the bootloader. It is now Android 11 with 05/01/2021 safety update. (11.2.4.4.LE5ACB). Could you please give the next step instruction?

Turned off auto updates? Yes? You can update to 11.2.9.9 then stop there, but make sure auto updates are turned off!!!!! Next step will to get root!

 

[TheGhost1951]

Turned off auto updates? Yes? You can update to 11.2.9.9 then stop there, but make sure auto updates are turned off!!!!! Next step will to get root!

I would stay away from custom roms, I have seen too many people having problems. Secondly as of right now, A12 is buggy so that is why I stay with stock A11 from T-Mobile. With the setup I can give you, you can have any custom bootanimation and custom systemwide font you want.....

 

[TheGhost1951]

First off, download and install Magisk v25.2 app from GitHub website and install it to your phone. Next download the attached file to the folder with your platform files.....

 

[TheGhost1951]

Download Magisk from this link to your phone and install it.

https://github.com/topjohnwu/Magisk/releases/download/v25.2/Magisk-v25.2.apk

 

[TheGhost1951]

Then download this link to your platform tools folder on PC...

Download twrp-3.6.2_11-0-lemonadep.img

Download page for twrp-3.6.2_11-0-lemonadep.img

dl.twrp.me

 

[TheGhost1951]

Then download this link to your phone storage...

17.63 MB file on MEGA

mega.nz

 

[TheGhost1951]

Let me know when you are down with these three steps!!!!! And are you updated to 11.2.9.9

 

[run93]

Let me know when you are down with these three steps!!!!! And are you updated to 11.2.9.9

Yes. I have successfuly updated 11.2.9.9 now.

I have a question that would this work? https://xdaforums.com/t/le2127-oneplus-9-pro-custom-rom-t-mobile.4490195/
I am interested in Android 12 or even 13 if possible.

 

[TheGhost1951]

Yes. I have successfuly updated 11.2.9.9 now.

I have a question that would this work? https://xdaforums.com/t/le2127-oneplus-9-pro-custom-rom-t-mobile.4490195/
I am interested in Android 12 or even 13 if possible.

If you are focused on upgrading to A12 or A12 then what I have will not work. As for the custom ROM, possible it may work, but you need to follow the steps to the letter. Any OP9P custom ROM will work from the XDA forums, the question is, will there be issues? Very possible. Good luck on your journey.....

 

[TheKnux]

I would stay away from custom roms, I have seen too many people having problems. Secondly as of right now, A12 is buggy so that is why I stay with stock A11 from T-Mobile. With the setup I can give you, you can have any custom bootanimation and custom systemwide font you want.....

Been running nameless for over a month and a half now and haven't had a single out-of-the-ordinary problem that can't be fixed with a simple reboot. I have the T-Mobile variant here. Data works fine.

 

[run93]

If you are focused on upgrading to A12 or A12 then what I have will not work. As for the custom ROM, possible it may work, but you need to follow the steps to the letter. Any OP9P custom ROM will work from the XDA forums, the question is, will there be issues? Very possible. Good luck on your journey.....

I understand about the concerns about custom ROM. I am confused that is there any official Global or EU ROM available ?

 

[TheGhost1951]

I understand about the concerns about custom ROM. I am confused that is there any official Global or EU ROM available ?

Stock.....but you need to be rooted, TWRP installed and then install the stock ROM zip in twrp.

 

[run93]

Stock.....but you need to be rooted, TWRP installed and then install the stock ROM zip in twrp.

Thank you for all the help today! I think I did something wrong. I successfully get TWRP (directly boot, not recovery since it is failed), and then get my phone bricked flashing the rom lineageos... Now I am trying to unbrick it...

 

[NameIsOptional]

Thank you for all the help today! I think I did something wrong. I successfully get TWRP (directly boot, not recovery since it is failed), and then get my phone bricked flashing the rom lineageos... Now I am trying to unbrick it...

Bricked as in black screen? Or does it boot to fastboot? What version of lineage are you trying to run? And what OOS were you on? You need to be on OOS 12 to run lineage 19. And twrp is not the recovery to use for that.

 

[TheGhost1951]

Look before you leap.....read read read and make sure to follow ALL steps 1step at a time.....