General [TMO] 9 PRO MODEM RETENTION/DATA FIX

[TheSayaMan]

i can't even to that. I have the file tmobile MSM file (210409_1024). but everytime i try to go back to tmobile stock using MSM it says unsupported target.

How did you do it?

You can't use that anymore. It's impossible to change target back. You need to use the EU/IN to TMobile tool to go back. Try this.

File on MEGA

mega.nz

 

[MudaTrucka]

I accidentally flashed the tmobile modem on a12 and won't boot. I am able to get into fastboot, is there any way I can revert back?

 

[TheSayaMan]

I accidentally flashed the tmobile modem on a12 and won't boot. I am able to get into fastboot, is there any way I can revert back?

Yes, two options, flash the T-Mobile a12 modems, you probably flashed the a11 one, or you can msm which wipes data.

 

[MudaTrucka]

Yes, two options, flash the T-Mobile a12 modems, you probably flashed the a11 one, or you can msm which wipes data.

thank you!

 

[MudaTrucka]

Yes, two options, flash the T-Mobile a12 modems, you probably flashed the a11 one, or you can msm which wipes data.

I am still not getting any service though, I thought that would fix it?

 

[TheSayaMan]

I am still not getting any service though, I thought that would fix it?

What exactly did you do? If you converted your T-Mobile variant to Global or Europe than no that won't fix it. In that case, you would have to root and use the magisk data module to get service. That's the only way.

 

[MudaTrucka]

What exactly did you do? If you converted your T-Mobile variant to Global or Europe than no that won't fix it. In that case, you would have to root and use the magisk data module to get service. That's the only way.

so I rooted and installed the data module from this thread. I see it's for c44 but I'm on c62. Is there another one that will work or must I downgrade?

 

[TheSayaMan]

so I rooted and installed the data module from this thread. I see it's for c44 but I'm on c62. Is there another one that will work or must I downgrade?

It works for c62 also because I was on c62 and it was working. I decided to go back to T-Mobile stock and not deal with it. If you decide to sell the phone eventually, most buyers are not going to want to go through all this. To get it working properly, you need to start with EU A11 and take all full local upgrades to Global A12. Then apply the module and you won't have any problems. If you take the updates through the built in system updater than you will have problems.

 

[MudaTrucka]

It works for c62 also because I was on c62 and it was working. I decided to go back to T-Mobile stock and not deal with it. If you decide to sell the phone eventually, most buyers are not going to want to go through all this. To get it working properly, you need to start with EU A11 and take all full local upgrades to Global A12. Then apply the module and you won't have any problems. If you take the updates through the built in system updater than you will have problems.

What did you use to go back to stock. I'm thinking that's what I want to do.

 

[TheSayaMan]

What did you use to go back to stock. I'm thinking that's what I want to do.

I'm not sure if your target is EU or IN. Try this one. It has EU as target to get you back. If not, I'll send you the IN one next.

File on MEGA

mega.nz

 

[MudaTrucka]

I'm not sure if your target is EU or IN. Try this one. It has EU as target to get you back. If not, I'll send you the IN one next.

File on MEGA

mega.nz

Thank you, I appreciate all the help. Will update when I download and try to downgrade.

 

[TheSayaMan]

Thank you, I appreciate all the help. Will update when I download and try to downgrade.

Also, if you are unaware, this will lock the bootloader and you will be required to have a unlock code from T-Mobile to unlock it again.

 

[MudaTrucka]

Also, if you are unaware, this will lock the bootloader and you will be required to have a unlock code from T-Mobile to unlock it again.

I am getting sahara communication error. But yes I still have my unlock code

 

[TheSayaMan]

I am getting sahara communication error. But yes I still have my unlock code

Only checkmark auto reboot and lite firehose

 

[MudaTrucka]

Only checkmark auto reboot and lite firehose

That worked! Thanks again!

 

[TheSayaMan]

That worked! Thanks again!

Awesome, your welcome

 

[samdaman91]

I'm not sure if your target is EU or IN. Try this one. It has EU as target to get you back. If not, I'll send you the IN one next.

File on MEGA

mega.nz

Do you have the IN to Tmobile one? or will the EU to tmobile work on the IN rom?

 

[TheSayaMan]

Do you have the IN to Tmobile one? or will the EU to tmobile work on the IN rom?

The one I posted won't work because it's for EU target only. Try this one with IN target.

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[zefyx]

Install of bothering with these broken data fixes, just install C.62 EU firmware on T-Mobile OOS12. Keep it simple!

 

[TheSayaMan]

Install of bothering with these broken data fixes, just install C.62 EU firmware on T-Mobile OOS12. Keep it simple!

Really? No!!! You can't do a local upgrade from T-Mobile to IN, EU or Global. You can cross between India, Europe and Global from India, Europe and Global but that's it.