How To Guide OnePlus 9 Pro TMO Le2127 Converted to Global Le2125 OOS 13

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TheGhost1951

TheGhost1951

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Feb 11, 2009
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OnePlus 9 Pro
Just go into settings/about phone/ and tap build or software build about 7 times to get to developer options. Then back up and tap on system settings and tap on developer options. Enable OEM unlock, enable USB debugging and finally USB Configuration to file transfer. Then go to home screen, then in your platform tools folder open a command prompt and type adb reboot bootloader, when it boots up, type fastboot oem unlock and follow prompts.
 
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SkOrPn

SkOrPn

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www.planetamd64.com
TheGhost1951 said:
Just go into settings/about phone/ and tap build or software build about 7 times to get to developer options. Then back up and tap on system settings and tap on developer options. Enable OEM unlock, enable USB debugging and finally USB Configuration to file transfer. Then go to home screen, then in your platform tools folder open a command prompt and type adb reboot bootloader, when it boots up, type fastboot oem unlock and follow prompts.
Click to expand...
Click to collapse
OK the device is bootloader unlocked now. Going to update now??? Do I keep skipping setup and just go straight to updating the OS via ota?
 
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TheGhost1951

TheGhost1951

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Feb 11, 2009
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OnePlus 9 Pro
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TheGhost1951

TheGhost1951

Senior Member
Feb 11, 2009
2,061
535
Garfield
OnePlus 9 Pro
Extract attached file to platform tools folder then open a cmd prompt, then reboot phone to boot loader and type fastboot flash modem_a modem _a_backup.img then fastboot flash modem_b modem_b_backup.img then reboot to system...
 

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    Bulauski2005
    Bulauski2005
    First convert to EU using the TMO to EU MSM Tool then install global firmware from the OnePlus website. Update it all the way to C.65 then install the OOS 13 F.17 firmware, go into settings and factory reset and your done VOILA ! Everything works including 5G mm wave with no root or data retention.
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    Appreciative
    fragonib said:
    Ey folks, I'm trying to follow the process with some misunderstanding:
    1- I converted to EU using https://forum.xda-developers.com/t/...7-to-eu-via-msm-no-unlock-bin-needed.4272837/ until step 2 (inclusive)
    2- I downloaded OP ROM OSS 11.2.10.10.LE15AA and installed manually

    Phone still indicates model LE2127 and suggest me to update to LE2115.11.F17_2170_202211231111

    Should I proceed with it instead of F16?
    What about "Update it all the way to C.65" where can I download them?
    Click to expand...
    Click to collapse

    You can find several versions of upgrade boot and apk files here:

    [GUIDE] [Magisk] [Unlock / ROOT / Keep Root] OOS 13.1.0.590

    Different variants of Magisk that are...
    forum.xda-developers.com forum.xda-developers.com

    Edit: The first post has an apk and instructions along with boot images. The second post has firmware zips for various versions
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    C
    craznazn
    mbj731 said:
    I did all of this and am now on F.16 but unable to unlock bootloader. Were you able to unlock bootloader? I was able to before going to A13
    Click to expand...
    Click to collapse
    You have to unlock the bootloader while on A11. After running my conversion MSM, first thing you should do is unlock the bootloader before updating to A12/A13. If you don't, you will not be able to unlock it later without the unlock_code.bin
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    M
    MENINBLK
    fragonib said:
    Ey folks, I'm trying to follow the process with some misunderstanding:
    1- I converted to EU using https://forum.xda-developers.com/t/...7-to-eu-via-msm-no-unlock-bin-needed.4272837/ until step 2 (inclusive)
    2- I downloaded OP ROM OSS 11.2.10.10.LE15AA and installed manually

    Phone still indicates model LE2127 and suggest me to update to LE2125.11.F17_2170_202211231111

    Should I proceed with it instead of F16?
    What about "Update it all the way to C.65" where can I download them?
    Click to expand...
    Click to collapse
    The only way the model will change is if you follow the conversion directions and use the MSM Tool in the links provided in the conversion directions.
    Otherwise it will stay as an LE2127.
    The conversion process gets rid of the TMO ROM and overwrites the device with OnePlus OOS ROM and Firmware via the MSM Tool.
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    A
    Appreciative
    linparda said:
    Hello everyone,

    I am new here - I bought the LE 2127 by mistake as I was going to try and de-Google the OnePlus 9 Pro by flashing Lineage OS. So I have a few questions that I hope someone will answer as I am not a developer but learning every day. I have already downloaded and used adb & fastboot on to my Pop OS laptop and taken out quite a few google apps including the Play store and replaced it with MicroG and my banking app works just fine. I get the occasional error with Signal, but it still works. My concern with the OnePlus is a Chinese backdoor? Anyone know about that and if there is one on this model?

    Here are my questions:

    1. Are you guys in the US? I am in the southeast.
    2. Changing the LE2127 to LE2125, will that work with Mint?
    3. Once I follow the directions and change to the LE2125 - I should be able to switch to another Custom OS? Like Lineage, right? The LE2125 is the last model they support.
    4. Would I be de-Googled with OOS or do I have to re-de-google the phone again...

    Mostly, what are the benefits of switching to LE2125 if you keep Oxygen; just getting rid of the T-Mobile apps? As I said, I am a total beginner, so any advice would be amazing.

    L
    Click to expand...
    Click to collapse
    #2) yes, it should continue to work fine, you'll flash your current modem back in anyway (if android 11 or 12, some say 13 works) Be sure to backup modemst1/2 to be safe. Multiple users report success with Tmo mvno working just fine all across.
    #3) yes, you should be able to.
    #4) you will have to re-de-google because you'll be going from Tmo to EU using the MSM tool, it's a clean slate and like-new state.

    The first benefit is flashing Tmo->EU allows you to unlock the bootloader without the OnePlus Token site. You can unlock it the traditional way. Neither way requires the sim to be unlocked but it's certainly more convenient than waiting a week.

    I would recommend submitting to OnePlus Token site just to have the backup option/unlock token bin that matches your device. I submitted mine and immediately flashed to EU and unlocked. Then when I flashed back to Tmo, I verified the unlock worked either way.

    And the cruise over to global/other roms.

    The other benefit is not having any of tmobile's bloatware, animations, and preventing automatic updates. I don't know 100% for the 9P but the Tmo 7TP5GME, they force the update, you can't prevent it by postponement. Having root and unlocked bootloader also didn't prevent the update from happening. I've since read that the Tmo variants can push the update and restart (so you lose root because you can't go flash magisk boot OTA back to inactive slot). Others who weren't yet to the maximum postponement amount would block the download servers in Hosts with root and avoid it that way
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