How To Guide Safely convert regions (includes T-Mobile) as well as restore the ability to use OOS12 after using Indian MSM to recover from a brick (Windows only)

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Nov 5, 2022
9
0
There are xda threads already started on that. Just search....
So i what i want to do is after getting my phone back to work with oneplus 9pro indian msm i can't use any t mobile oneplus 9 orignal msm. i just want to convert my phone to globel but fastboot enhance give the error that i attached as image up. my sim is locked and can't be unlocked as i am out of us and not eligible to do. also don't want to pay anymore. just any solution to change it to global or get back to the stage ware i can use any tmo msm insted of op9p indian moded msm. hope there is a sloution. and also i can't find xda thraed can you please link that would be thankful.
 

rizzmughal

Senior Member
Nov 10, 2014
175
31
So i what i want to do is after getting my phone back to work with oneplus 9pro indian msm i can't use any t mobile oneplus 9 orignal msm. i just want to convert my phone to globel but fastboot enhance give the error that i attached as image up. my sim is locked and can't be unlocked as i am out of us and not eligible to do. also don't want to pay anymore. just any solution to change it to global or get back to the stage ware i can use any tmo msm insted of op9p indian moded msm. hope there is a sloution. and also i can't find xda thraed can you please link that would be thankful.
Use this tmo india msm to get back to stock tmo then the safely convert method
 

Astur_Torque

Senior Member
Aug 21, 2014
298
41
Gijón
Hi I bought a USA vession and I live in Spain..

Is it possible to fully change to Europe version? With all the EU bands, OTA and so on?
 

Fors4kenArg

Senior Member
Oct 3, 2016
114
13
hi friend, i have a question, if i turn my device (TMO) to global, how can i reset the temporary lock from T-Mobile (i bought the phone without being permanently unlocked, so each 28th from every month I had to reset it). And previously i had turn my phone to global and had to turn back to TMO just so i can send the temporary request unlock of sim. Pls help me to find a way were i can turn to global and, teporary unlock the sim each month. Thanks @EtherealRemnant
 

damefrikis

Member
May 24, 2012
16
1
Hi! I have bought a new LE2115 global wich is updated to OOS13 and I find that it has a battery drain because the ROM doesn't enters correctly into deep sleep. I live in Europe so I'd like to change de mobile to EU ROM in order to have a try (Will it enable dual SIM?)

As I'm in Android 13 I'm not sure how to go back to OOS11. Is it possible to rool back using Oxygen Updater APK tool to rollback?

Once I'm there I don't understand very well the procedure to flash another version, as mi case is not listed in the three casuistics (T-mobile with indian rom, not indian or Gobal with flashed infian firmware)

Where I can find more information in order to get the EU ROM?

Thank you very much and best regards.
 

rizzmughal

Senior Member
Nov 10, 2014
175
31
Hi! I have bought a new LE2115 global wich is updated to OOS13 and I find that it has a battery drain because the ROM doesn't enters correctly into deep sleep. I live in Europe so I'd like to change de mobile to EU ROM in order to have a try (Will it enable dual SIM?)

As I'm in Android 13 I'm not sure how to go back to OOS11. Is it possible to rool back using Oxygen Updater APK tool to rollback?

Once I'm there I don't understand very well the procedure to flash another version, as mi case is not listed in the three casuistics (T-mobile with indian rom, not indian or Gobal with flashed infian firmware)

Where I can find more information in order to get the EU ROM?

Thank you very much and best regards.
U can easily change to eu with dastboot enhance or thru local update just down oos13 eu version n upgrade
 

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    It seems lots of us have had to use the India 9 Pro MSM to recover our devices and in the process, we lose the ability to go back to OOS12 or ROMs based on that firmware because the touchscreen stops working and also trying to convert T-Mobile variants, the fastboot scripts are just bricking them. Well I found a fix for these issues. Those who just want to convert can skip the MSM Tool process and get right to the conversion process as long as they're already running OOS11.

    First thing is first, you need to be on OOS11. If you have a T-Mobile variant and you have flashed it with India firmware, you have to use a modded T-Mobile MSM: https://forum.xda-developers.com/t/...ariant-flashing-as-well.4454357/post-87050821

    If you have a T-Mobile variant that hasn't used the Indian 9 Pro MSM Tool, is on OOS12, and you're just wanting to convert, you need this tool: https://forum.xda-developers.com/t/oneplus-9-11-2-22-2-t-mobile-msm-download-tool.4276119/

    If you have a global variant or a global variant that has been flashed with Indian firmware, you can use this MSM (choose O2 for global or India for India in the Target dropdown, check Sha256, uncheck use lite firehose, it's a multi-target MSM Tool): https://mega.nz/file/ZWtGxTSb#UZ6aSOR2UTYrCao2fQNJ1IN5LSxPNBOxzel1kihnnJs

    If you don't know how to use the MSM Tool, there are other guides around here, that's outside of the scope of this post.

    Once you are back on OOS11, unlock the bootloader. We also need USB debugging enabled.

    Now we need a tool called Fastboot Enhance. This wonderful tool allows you to directly flash OTAs from fastbootd and it doesn't have the same brick risk that flashing with fastboot scripts does.

    Download it and unzip it somewhere.

    Next we need the OOS11 global downgrade package (or whatever region you are wanting to switch to, global is recommended for T-Mobile variants) from here: https://forum.xda-developers.com/t/oneplus-9-rom-ota-oxygen-os-repo-of-oxygen-os-builds.4254579/

    Fire up command prompt in the folder you have your platform tools and run:

    adb reboot fastboot (if you do adb reboot bootloader you will then need to type fastboot reboot fastboot to get to fastbootd)

    This will take you into fastbootd. It will have a screen that has three different languages to choose from on it. Go ahead and fire up Fastboot Enhance now.

    It may take a few seconds for the app to recognize the device but when you see it in the list, double-click it to get to the main screen.

    Screenshot 2022-06-23 192151.png

    Check that it says that the device is in fastbootd. Now we just need to click Flash Payload.bin and choose the OTA we downloaded earlier (we don't even need to extract the zip, the app does that for us). If it pops up with an unrecognized partitions error, you're either not in fastbootd, you didn't MSM back to stock (you cannot do this with a custom recovery), or you grabbed an OOS12 OTA. Do not continue and check that everything is correct otherwise you will brick and have to start all over with the MSM Tool. Likewise, if it pops up an alert about cow partitions, don't continue. Go to the partitions screen and search for cow and delete them all.

    Once it's done, boot the device, factory reset it in the settings (this is mandatory as Fastboot Enhance does not erase the device like a normal downgrade would do and this can cause problems), set it back up, and then do the OTA process to get back to where you want to go.
    1
    THANK YOU SIR, true gentleman. Your post I guess was the only one convincing enough that it was finally brushed through the beta testing phase enough that it would be worth trying. No real risk here considering its just using that awesome tool you mentioned in the post, which i've never heard of. will be using for now on. Dunno about any testing with this method so i thought i would owe the community my post. i saw the sahara error post not too long ago talking about a fix with no testing yet xD that made me laugh honestly. But yeah my phone is now converted global through payload.bin flash in fastbootd. Tmo Variant had me & my girls phone networked unlocked through the one guy that was doing it for free on here a while back.. then applied for unlock code and did it officially, never tried to convert due to brick concerns, so i had the easy route through the methods involved in this post, considering i was still on oos 11 with bootloader unlocked when reading this. anyways, i think its safe to say its fixed pretty hyped to flash roms now and not get bootlooped and excited to see where this variant is gonna go! thanks again mate.
    1
    It's not the MSM Tool that's borked, it's the ROM itself.
    So I went ahead and figured out my device was still reading as the OP9 Indian variant and was stuck on Tmobile variant. I used the OP9 Pro Indian variant again to get it off of the fiasco I created, used the Tmobile MSM targeted at the Indian variant. But the device still read as the OP9P Indian. That's when it all clicked for me and I made a MSM Tool to read the device as OP9P Indian but flash me the regular OP9 Indian variant. Indian on Indian and back on the correct model. This Fixed my bootloader unlock issue and I can now use FBE to do whatever deed I may need to do :) Thought i would share my process. I could upload my MSM I made if anyone could use it or needs it.
    1
    So I went ahead and figured out my device was still reading as the OP9 Indian variant and was stuck on Tmobile variant. I used the OP9 Pro Indian variant again to get it off of the fiasco I created, used the Tmobile MSM targeted at the Indian variant. But the device still read as the OP9P Indian. That's when it all clicked for me and I made a MSM Tool to read the device as OP9P Indian but flash me the regular OP9 Indian variant. Indian on Indian and back on the correct model. This Fixed my bootloader unlock issue and I can now use FBE to do whatever deed I may need to do :) Thought i would share my process. I could upload my MSM I made if anyone could use it or needs it.
    It's so damn stupid that we have to juggle 500 MSM Tools to fix all this crap. OnePlus really needs to get it together. Glad that you figured it out though.
    1
    Ah, forgot. Guess I'm just behind. So far I've rooted and debloated c.61. I'll look into some modules possibly. I mainly just want to strip the phone down to what I need, try to black out everything, wish swift themes had a12 support. Harden up the permissions, maybe sandbox all social apps. I'm just playing around. What can FBE do for me other than flash?
    FBE can extract images from a payload.bin but it's mostly just useful for flashing OTAs directly in fastbootd (less likely to have something fail than using fastboot in my experience as long as you don't ignore any errors that crop up).