Question T-Mobile device converted to Indian, can't take full updates

[razercortex]

Hi all,

I have an issue with my device and ended up using SMT Download with a modified MSM I made to restore T-Mobile firmware back. I did lose my Widevine and data but was quickly able to fix it by flashing back param and modemst1/2 and relocking my bootloader.

I'm currently having an issue where I can't take full updates, i.e. from Android 11 to Android 12, but I can take minor ones, i.e. 11.2.4.4 to 11.2.10.10. Does anyone with a bricked T-Mobile OnePlus 9 Pro have a similar issue? Also, if anyone knows how to convert the Indian target back to T-Mobile, please share! I know it's been posted somewhere that it's impossible, but if the Indian MSM can write to the target in the first place, there definitely is a way.

To my fellow T-Mobile OnePlus 9 Pro users who ended up having to use the Indian MSM to unbrick and the rest of XDA, I would appreciate your thoughts on this.

Thank you

 

[gillim74]

Hi all,

I have an issue with my device and ended up using SMT Download with a modified MSM I made to restore T-Mobile firmware back. I did lose my Widevine and data but was quickly able to fix it by flashing back param and modemst1/2 and relocking my bootloader.

I'm currently having an issue where I can't take full updates, i.e. from Android 11 to Android 12, but I can take minor ones, i.e. 11.2.4.4 to 11.2.10.10. Does anyone with a bricked T-Mobile OnePlus 9 Pro have a similar issue? Also, if anyone knows how to convert the Indian target back to T-Mobile, please share! I know it's been posted somewhere that it's impossible, but if the Indian MSM can write to the target in the first place, there definitely is a way.

To my fellow T-Mobile OnePlus 9 Pro users who ended up having to use the Indian MSM to unbrick and the rest of XDA, I would appreciate your thoughts on this.

Thank you

I believe you have to have 11.2.10.10 to update to a12

 

[razercortex]

I believe you have to have 11.2.10.10 to update to a12

I do have 11.2.9.9 which is basically the T-Mobile version of that update, but there's something still preventing me from going to A12.

 

[gillim74]

I do have 11.2.9.9 which is basically the T-Mobile version of that update, but there's something still preventing me from going to A12.

Not too familiar with tmobile but do they offer a way to do a local upgrade?

 

[EtherealRemnant]

I made this guide the 9 but it's the same idea with the 9 Pro. Since you're already on OOS11, skip the part about the MSM and just download the global 9 Pro OOS11 downgrade package and follow the instructions for flashing with Fastboot Enhance.

Safely convert between regions and repair the ability to use OOS12 after using India 9 Pro MSM Tool to recover from a brick (Windows only)

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...

forum.xda-developers.com

 

[razercortex]

Awesome!

One more thing, I tried to restore my persist.img from my backup, but I can't enroll my fingerprints anymore, it shows a fingerprint calibration error, any ideas on how to fix?

 

[razercortex]

Not too familiar with tmobile but do they offer a way to do a local upgrade?

They do not unfortunately. The only way to upgrade is directly from the server.

 

[EtherealRemnant]

Awesome!

One more thing, I tried to restore my persist.img from my backup, but I can't enroll my fingerprints anymore, it shows a fingerprint calibration error, any ideas on how to fix?

That's not something that I have ever had to deal with, hopefully someone will come along who knows.

 

[gillim74]

They do not unfortunately. The only way to upgrade is directly from the server.

I would try to msm again then boot to system then msm one more time.it fixed a issue i was having with my phone when i did it that way.it cant hurt to try

 

[razercortex]

I forgot to share that this problem only occurs with locked bootloader, unlocked bootloader is fine.