How To Guide Tmo-eu (global) the way I did it.

[LLStarks]

MSM is useless as well, got one from OP support, stil didn't work. Just be careful.

You have the T-Mobile MSM?

 

[Jhoopes517]

MSM is useless as well, got one from OP support, stil didn't work. Just be careful.

Worked fine for me on TMO.

 

[razercortex]

I meant it might not work if you poke with BL.

 

[Jhoopes517]

I meant it might not work if you poke with BL.

How so? My phone was completely jacked and I couldn't do anything with it. Got remote support and they remoted on and did their thing.

I flashed a system.img over super and it got rekt good.

 

[razercortex]

Well yeah, let's just say I thought it was a good idea to flash the entire EU firmware, and...

 

[Jhoopes517]

Well yeah, let's just say I thought it was a good idea to flash the entire EU firmware, and...

I did that. I followed this guide to an extent. I created my own .bat and had no issues.

 

[razercortex]

No, no, no, it's not the official EU firmware, it's like everything including bootloader stuff, not the OTA update. It's like a full dump of the partition table and stuff.

 

[djensen777]

Hey XDA'ers
It's time to get humble and beg. I sim unlocked and bootloader unlocked my OP9P T-Money LE2127 device, and thought I backed up stock T-Money modem images correctly, but alas to no avail, I screwed it up somehow. I used the Partitions Backup app to backup modem, but they will not restore on my device flashed to LE15AA Global Rom. The phone is flashed, but I have no Data.
So I'm begging pretty please, somebody PM me or post a link on this thread for T-money stock modem images.
There taking all the fun out of this hobby, I've enjoyed for a pretty long time. I'll never buy a T-Money phone again.
It would be Greatly Appreciated Thanks' in advance.

 

[craznazn]

Hey XDA'ers
It's time to get humble and beg. I sim unlocked and bootloader unlocked my OP9P T-Money LE2127 device, and thought I backed up stock T-Money modem images correctly, but alas to no avail, I screwed it up somehow. I used the Partitions Backup app to backup modem, but they will not restore my device flashed to LE15AA Global Rom. The phone is flashed, but I have no Data.
So I'm begging pretty please, somebody PM me or post a link on this thread for T-money stock modem images.
There taking all the fun out of this hobby, I've enjoyed for a pretty long time. I'll never buy a T-Money phone again.
It would be Greatly Appreciated Thanks' in advance.

So you can boot, get to OS, and have local upgrade? If so, I highly recommend taking the same full OTA (11.2.2.2 in your case, for global), then flash the modem.

modem-tmobile-11.2.3.3.zip | by craznazn for OnePlus 9 Pro

Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.

www.androidfilehost.com

Doesn't appear to be any difference between the 11.2.2.2 and 11.2.3.3 modem for tmo, other than compile date.

 

[craznazn]

No sir. A bunch of stuff flashed and the rest failed.

what version of fastboot are you running?

fastboot --version

what happens if you run:

fastboot reboot fastboot

 

[LLStarks]

I meant it might not work if you poke with BL.

If you have an MSM that hasn't been posted here. Please share. You may be missing the point in whether or not it works. People with working bootloaders will need it.

 

[craznazn]

Version of fastbootd? I'm on 11.2.3.3!
Maybe that could be the problem! Fastbootd reboot fastbootd leaves me with a bunch of comments in terminal. No avail .

On your computer, run that command. What version of fastboot is running on your computer?

 

[TheKnux]

So I take it you have now successfully flashed over

Yes. On latest 11.2.4.4. EU with t-mobile modems and no issue other than slot_b being heckled but an OTA will fix that (hopefully).

 

[djensen777]

So you can boot, get to OS, and have local upgrade? If so, I highly recommend taking the same full OTA (11.2.2.2 in your case, for global), then flash the modem.

modem-tmobile-11.2.3.3.zip | by craznazn for OnePlus 9 Pro

Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.

www.androidfilehost.com

Doesn't appear to be any difference between the 11.2.2.2 and 11.2.3.3 modem for tmo, other than compile date.

Thank you

 

[MStrawder]

Can someone explain how they got into fastbootd because the commands have 0 effect. My phone is still working properly NOW,but, need someone to hold my hand on this cause I'm out of options at this point

Make absolutely sure you have the latest Fastboot/adb files. At this moment, it's r31.0.2. My device wouldn't respond to any of the Fastboot commands until I had updated it. Then any of the below commands should get you into FastbootD

1) adb reboot fastboot (straight to FastbootD)
or
2) adb reboot bootloader
THEN
2a) fastboot reboot fastboot
or
3) fasboot reboot-bootloader
THEN
3a) fastboot reboot fastboot

I just ran through the sequences about a half a dozen times each to verify it's working. The key for this device, for me at least, was making sure I had the newest Fastboot/ADB files. Honestly, I hadn't updated them in ages because the old ones worked fine with my OP7 Pro. This device seems to only work with the most recent ones.

 

[iSkyJIE]

Follow the guide, TMO 11.2.2.2 flash global 11.2.2.2 AA, updated to 11.2.3.3 EU. However, the visual voice mail does not work, Unable to activate.

 

[MStrawder]

I have no recovery just a black screen. Please help

Any error messages during flashing? I ran all the commands manually after I noticed the typos in the batch file and some stuff just wouldn't flash.

 

[logiasin]

Before following this guide, I used the T-Mobile MSM tool to flash my phone to stock 11.2.3.3. From there, I re-unlocked my bootloader and booted the rooted boot image before proceeding to follow the guide step by step to back up partitions, dump the OTA payload, merge the OTA with my dumped modems, etc etc etc.

Using the 11.2.2.2 Global/NA OTA, with or without root, with or without the T-Mobile modems, I was never able to get past the international boot animation, even after leaving it running for upwards of 30 minutes.

Using the 11.2.4.4 EU OTA, with or without root, with or without the T-Mobile modems (no data as expected without the T-Mobile modems), I was able to boot and proceed with setting up and further debloating and I haven't yet experienced instability.

I'm not sure why flashing system_ext_a is in the batch file twice, but flashing system_ext_b results in an error about resizing the partition.
I don't have a abl_b.img to flash
I don't have a multiigoem.img to flash, but I do have a multiimgoem.img
I ran fastboot --set-active=a afterwards to set the slot, not sure if this was strictly necessary.

TL;DR:
T-Mo 11.2.3.3 -> 11.2.2.2 NA failed
T-Mo 11.2.3.3 -> 11.2.4.4 EU succeeded.
The downgrade from 11.2.3.3 to 11.2.2.2 NA may have been a contributing factor in not being able to finish booting. I'd like to try again with a 11.2.3.3 or higher Global/NA build.

So the guide works, results seem to possibly vary depending on MSM/ROM/OTA versions in play.

Many thanks to @amaroney55, @craznazn, and @Jhoopes517 for the tutorials, writeups, and file uploads.

 

[Logix]

what is the actual command to get into fastbootd because fastboot reboot fastboot aint happening

It reboots you to recovery

 

[Logix]

Before following this guide, I used the T-Mobile MSM tool to flash my phone to stock 11.2.3.3. From there, I re-unlocked my bootloader and booted the rooted boot image before proceeding to follow the guide step by step to back up partitions, dump the OTA payload, merge the OTA with my dumped modems, etc etc etc.

Using the 11.2.2.2 Global/NA OTA, with or without root, with or without the T-Mobile modems, I was never able to get past the international boot animation, even after leaving it running for upwards of 30 minutes.

Using the 11.2.4.4 EU OTA, with or without root, with or without the T-Mobile modems (no data as expected without the T-Mobile modems), I was able to boot and proceed with setting up and further debloating and I haven't yet experienced instability.

I'm not sure why flashing system_ext_a is in the batch file twice, but flashing system_ext_b results in an error about resizing the partition.
I don't have a abl_b.img to flash
I don't have a multiigoem.img to flash, but I do have a multiimgoem.img
I ran fastboot --set-active=a afterwards to set the slot, not sure if this was strictly necessary.

TL;DR:
T-Mo 11.2.3.3 -> 11.2.2.2 NA failed
T-Mo 11.2.3.3 -> 11.2.4.4 EU succeeded.
The downgrade from 11.2.3.3 to 11.2.2.2 NA may have been a contributing factor in not being able to finish booting. I'd like to try again with a 11.2.3.3 or higher Global/NA build.

So the guide works, results seem to possibly vary depending on MSM/ROM/OTA versions in play.

Many thanks to @amaroney55, @craznazn, and @Jhoopes517 for the tutorials, writeups, and file uploads.

It worked for me when I fixed flashall