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How To Guide [TMO] OOS/COS DATA FIX

TO CLARIFY THIS IS A ROOT ONLY FIX​After gaining root install given module.
Data is now retained. Even after reboot(s).
No empty slot or waiting.
Issue is TMO variant is showing muli sim.
So props were added to make it like a conversion to single sim....
Yes module works for both models.
Install & enjoy
Extract and pull it apart if interested .
Please give amazing thanks
to @twinnfamous for building module & bringing this data/sim nightmare to an end ​

Can confirm this worked and solved my stupid "no sim" error after upgrading from 11.10.10 global to c44.

Worked perfectly on TMobile converted to global. With the issue of having no signal after 12 update.
Thank you @twinnfamous for making the module and thank you @Libra420T for sharing !! You both saved my A$$!

Is this the only way to get data working? I have a NA global variant that doesn't support dual SIM and seems to have the same issue. Honestly really liking ColorOS besides this... I usually don't root but if I don't have a choice, I guess that's what I'll do.

Thanks much. This worked perfectly after I figured out how to root C.62!

Libra420T said:
TO CLARIFY THIS IS A ROOT ONLY FIX​After gaining root install given module.
Data is now retained. Even after reboot(s).
No empty slot or waiting.
Issue is TMO variant is showing muli sim.
So props were added to make it like a conversion to single sim....
Yes module works for both models.
Install & enjoy
Extract and pull it apart if interested .
Please give amazing thanks
to @twinnfamous for building module & bringing this data/sim nightmare to an end ​
Click to expand...
Click to collapse
thanks so much! I reflashed with msm multiple times and then kept upgrading to 12 since I thought I was doing something wrong, this fixed the SIM issue. now working great!

Hey dear my device OnePlus 9 T-Mobile
After rollback to stock T-Mobile
By unbrick msm tools
Stock T-Mobile not like first time
Sim card always disconnected and reconnected . Any solution?

This is support a Indian firmware?

badlucky said:
Hey dear my device OnePlus 9 T-Mobile
After rollback to stock T-Mobile
By unbrick msm tools
Stock T-Mobile not like first time
Sim card always disconnected and reconnected . Any solution?
Click to expand...
Click to collapse
You need to make sure that the msm tool manager is for your version that shipped with your phone, as well as the right android version number. Only then will you be able to generate a modem from your service provider.
If that doesn't work, I would try to msm to different versions of your T-Mobile vairent (LE2117). You should have rolled back to like 11.2.2 unless you have the Indian version. Idk what the first version was. my guess is that you used an msm tool that didn't include the Indian T-Mobile vairents.

Dear . I'm use msm to flash global firmware then im rollback to T-Mobile
This file sim card fix only on global firmware? Or for both (glo & India ) .
? Any new T-Mobile msm tools ?

Libra420T said:
TO CLARIFY THIS IS A ROOT ONLY FIX​After gaining root install given module.
Data is now retained. Even after reboot(s).
No empty slot or waiting.
Issue is TMO variant is showing muli sim.
So props were added to make it like a conversion to single sim....
Yes module works for both models.
Install & enjoy
Extract and pull it apart if interested .
Please give amazing thanks
to @twinnfamous for building module & bringing this data/sim nightmare to an end ​
Click to expand...
Click to collapse
Hey dear . Update to a12 last version c63 with ota update or local update?

Phoenix47 said:
Will it work on coloros 13 open beta ?
Click to expand...
Click to collapse
Yes it does. Beware that you may lose VoLTE, 5G, and WiFi calling though.

Phoenix47 said:
I don't even use any of them.
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Click to collapse
What carrier do you have? I had to go back to OOS because no US carrier works right without VoLTE now. Couldn’t make or receive calls unless my phone was on 3G (T-Mobile). Went back to OOS and then switched to my 12 Pro Max. Waiting for the Pixel 7 Pro announcement to decide if I’m going to that or getting a 14 Pro Max and saying goodbye to Android (again - my OnePlus 9 is the first Android I had since 2017 when I switched). All I know is I’m over this device.

dual sim will work?
sim issues solved from Android 13?

Closed

...

did you founded solution or not?

umairkhalid415 said:
Help me guys. I was trying to modify model no. Of phone so I flashed a param of different model (eu model) on my OnePlus 8 tmobile in 2017 variant but the issue is that I mistakenly restored my OnePlus to tmobile oos using msm of tmobile .. so now bootloader is locked and can't unlock it using unlock token.bin bcz of changed param it failed to verify .
Now I am stuck on Android 10 oos bcz system updates option is grayed out too and can't unlock bootloader , and can't restore my original param.bin file ..
Is there a way to flash param on locked bootloader?
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Click to collapse
having the same exact issue. tried couple things and none of them have worked

Snekxs said:
having the same exact issue. tried couple things and none of them have worked
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Click to collapse
which model do you have.?
and yes restored yesterday. using these tools but its was very time consuming to find the right command for flashing process to work.

umairkhalid415 said:
which model do you have.?
and yes restored yesterday. using these tools but its was very time consuming to find the right command for flashing process to work.
Click to expand...
Click to collapse
oneplus 8 5g in2017

Snekxs said:
oneplus 8 5g in2017
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Click to collapse
do you have back up of your original param?

Fix my signal loss question

how can fix when me flashing other rom，my sim card don't work, I'm tride unlock bootload , flash fastboot ROM(global),and found Europe style maybe can fix my question,to flash Europe OOS,my sim card always don't work,and my flash hydrogen os (china mobile sim card), it always didn't work,my phone is Verizon model IN 2019, I THINK it's fastboot ROM modem.img file have bugs or don't include my sim, I change it, always don't work, please help me
The sim card can be recognized but cannot be used

What SIM do you have? Do you use T - Mobile, etc. or do you use Verizon?
I can always give you your modem. img if you require it.

Xryphon said:
你有什么 SIM 卡？您使用 T - Mobile 等还是使用 Verizon？
Click to expand...
Click to collapse
China Mobile Sim card，phone is Verizon

I don't believe it was a good choice to buy a Verizon model OnePlus 8 in a region where Verizon cannot be used at all. China Mobile SIM cards can likely not be used in the United States and are likely not compatible with U. S. devices at all; hence the reason to buy a different SIM card when travelling to a different region. do you know if your device is unlocked?

Xryphon said:
我认为在根本无法使用 Verizon 的地区购买 Verizon 型号 OnePlus 8 不是一个好选择。中国移动 SIM 卡可能无法在美国使用，并且可能与美国设备完全不兼容；因此，在前往不同地区时购买不同 SIM 卡的原因。您知道您的设备是否已解锁吗？
Click to expand...
Click to collapse
I'm in China，when i use Verizon oxygen os my sim card have signal，just me flashing other rom my phone signal don't work，The sim card can be recognized but can't connected and use

It's possible that custom ROMs somehow don't support China Mobile; does it say anything when you enter the Mobile Data settings?

Xryphon said:
It's possible that custom ROMs somehow don't support China Mobile; does it say anything when you enter the Mobile Data settings?
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Click to collapse
I think it,so I changed modem.img file,always no work

clisays said:
我想是的，所以我改变了modem.img文件，总是没有工作
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Click to collapse
I catch my untrack msmdownloadtool zip ops file,get modem.img. ,use adb tool flash it, it can't be worked

Have you tried flashing the file in fastbootd?

Xryphon said:
您是否尝试过在 fastbootd 中刷新文件？
Click to expand...
Click to collapse
试过了

Xryphon said:
Have you tried flashing the file in fastbootd?
Click to expand...
Click to collapse
tride

Question How do i convert a global LE2117 BACK to the Tmobile firmware?

the only reason why I converted to global is for faster updates, then OnePlus released oxygenos 12 and all my reasoning was gone. How do i go back?

Do the same but with this MSM tool
I recently have problem switching to global version and had to return to tmobile and used this.
Thread 'OnePlus 9 11.2.22.2 (T-Mobile) MSM Download Tool' https://forum.xda-developers.com/t/oneplus-9-11-2-22-2-t-mobile-msm-download-tool.4276119/

Use the T-Mo MSM tool then apply any updates that T-Mo pushes down.

I tried this MSM tool to see if it would help me finally get my updates to A12, but it seems like something's borked and I wind up getting the same 506MB update that claims to be c.16 but winds up being 11.2.8.8. Just a heads up, you may not get back up to date!
Gabiru05 said:
Do the same but with this MSM tool
I recently have problem switching to global version and had to return to tmobile and used this.
Thread 'OnePlus 9 11.2.22.2 (T-Mobile) MSM Download Tool' https://forum.xda-developers.com/t/oneplus-9-11-2-22-2-t-mobile-msm-download-tool.4276119/
Click to expand...
Click to collapse

RockfordRocksAHD said:
I tried this MSM tool to see if it would help me finally get my updates to A12, but it seems like something's borked and I wind up getting the same 506MB update that claims to be c.16 but winds up being 11.2.8.8. Just a heads up, you may not get back up to date!
Click to expand...
Click to collapse
Yes after updated this patch you will get another update notification Wich is complete of 4.8 gb.

Gabiru05 said:
Yes after updated this patch you will get another update notification Wich is complete of 4.8 gb.
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Click to collapse
It's been like 3 days now lol. Is it just really that slow to get the next patch? My phone still says up to date.

RockfordRocksAHD said:
It's been like 3 days now lol. Is it just really that slow to get the next patch? My phone still says up to date.
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Click to collapse
Humm something strange because in my case when I bought my op9 tmobile it updated to android 12 also oxygen. then I wanted to switch to the global version and bricked my phone by this reason I went back to install using that msm that I told you to the tmobile version again and got all update from android 11 to latest android 12 and all normal.

You really shouldn't convert back. T-Mobile gets the slowest updates by far and there is no downside to running global or EU firmware on it.

EtherealRemnant said:
You really shouldn't convert back. T-Mobile gets the slowest updates by far and there is no downside to running global or EU firmware on it.
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Click to collapse
Hello Ethereal I am agree with you but probably the only reason to return to the tmobile version would be to unlock the SIM in case it has not been done or it presents a problem in the global version marking dual sim which is my case currently.

I'm also gonna trade in my phone through T-Mobile, I assume they'll still let me do it with global firmware?

EtherealRemnant said:
You really shouldn't convert back. T-Mobile gets the slowest updates by far and there is no downside to running global or EU firmware on it.
Click to expand...
Click to collapse
Do you know how can I solve problem Wich show me dual sim after switch to global room but my phone show le1125 Wich is na version. I am confuse

Gabiru05 said:
Do you know how can I solve problem Wich show me dual sim after switch to global room but my phone show le1125 Wich is na version. I am confuse
Click to expand...
Click to collapse
You can install the Magisk fix to fix that.
[TMO] OOS/COS DATA FIX
TO CLARIFY THIS IS A ROOT ONLY FIX After gaining root install given module. Data is now retained. Even after reboot(s). No empty slot or waiting. Issue is TMO variant is showing multi sim. So props were added to make it like a conversion to...
forum.xda-developers.com
I use this on my global 9 to fix the issue in India and China firmwares.

Gabiru05 said:
Humm something strange because in my case when I bought my op9 tmobile it updated to android 12 also oxygen. then I wanted to switch to the global version and bricked my phone by this reason I went back to install using that msm that I told you to the tmobile version again and got all update from android 11 to latest android 12 and all normal.
Click to expand...
Click to collapse
I actually contacted T-Mobile about it and they seem baffled, so much so they tried talking to OnePlus about it and OnePlus told them my device is supposed to have 11, which I know it's not. Something feels ****y here

EtherealRemnant said:
You can install the Magisk fix to fix that.
[TMO] OOS/COS DATA FIX
TO CLARIFY THIS IS A ROOT ONLY FIX After gaining root install given module. Data is now retained. Even after reboot(s). No empty slot or waiting. Issue is TMO variant is showing multi sim. So props were added to make it like a conversion to...
forum.xda-developers.com
I use this on my global 9 to fix the issue in India and China firmwares.
Click to expand...
Click to collapse
If I was to switch to Global FW, is there a non-root way to fix the SIM issue? I use banking apps and a few Niantic games on my phone and they don't like root

RockfordRocksAHD said:
If I was to switch to Global FW, is there a non-root way to fix the SIM issue? I use banking apps and a few Niantic games on my phone and they don't like root
Click to expand...
Click to collapse
No, there's not, but I have been successful at hiding root from every app that I have tried to hide it from so it's a moot point for me.
It seems strange that the global NA ROM is having that issue though because the global ROM isn't a dual SIM ROM. EU, IN, and CN are dual SIM but global/NA is not. I guess maybe it's because the T-Mobile variant is technically dual SIM with it just disabled?

RockfordRocksAHD said:
I actually contacted T-Mobile about it and they seem baffled, so much so they tried talking to OnePlus about it and OnePlus told them my device is supposed to have 11, which I know it's not. Something feels ****y here
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Click to collapse
Really strange.

RockfordRocksAHD said:
I actually contacted T-Mobile about it and they seem baffled, so much so they tried talking to OnePlus about it and OnePlus told them my device is supposed to have 11, which I know it's not. Something feels ****y here
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Click to collapse
I'm having the same exact issue
Did you ever get it resolved?

AaronRamlochan said:
I'm having the same exact issue
Did you ever get it resolved?
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Click to collapse
No, unfortunately. I used a guide on here to bypass the greyed out OEM Unlocking switch in Developer settings and requested my unlock code from OnePlus so I could root on global A12 and use the Dual Sim fix. It's really a complicated mess for a rather nice phone.

Oem unlocking token code missing,how to collect token code or without code how to unlock oem unlock ? OnePlus 9 5g le2117

Question Global/Custom ROM back to T-Mobile Issue

Hello.
So basically, I have a T-Mobile OnePlus 9 (LE2117). I went through that whole ordeal of having that global conversion script brick then phone and then bring it back to life using the India 9 Pro MSM. I tried a bunch of stuff, eventually gave up and contacted OnePlus support to get to a working T-Mobile MSM tool.
When the T-Mobile MSM they used did its thing, it went back to the T-Mobile software, however there are two issues with it:
1. The pink T-Mobile splash screen doesn't show up on boot but instead a black one that just says "android" shows up (see attached image)
2. The software updates button is grayed out and cannot be hit
The original T-Mobile MSM you can find online also works now, but it still results in this same issue.
I ended up using the global conversion MSM on OOS 11 and a custom rom for a few months each, both of which worked perfectly, but this is still an issue that is here after using the T-Mobile MSM again.
Is there any good way of fixing this issue? I do have quite a few of the important partitions backed up if those are necessary.
Thanks!

BGW#10 said:
Hello.
So basically, I have a T-Mobile OnePlus 9 (LE2117). I went through that whole ordeal of having that global conversion script brick then phone and then bring it back to life using the India 9 Pro MSM. I tried a bunch of stuff, eventually gave up and contacted OnePlus support to get to a working T-Mobile MSM tool.
When the T-Mobile MSM they used did its thing, it went back to the T-Mobile software, however there are two issues with it:
1. The pink T-Mobile splash screen doesn't show up on boot but instead a black one that just says "android" shows up (see attached image)
2. The software updates button is grayed out and cannot be hit
The original T-Mobile MSM you can find online also works now, but it still results in this same issue.
I ended up using the global conversion MSM on OOS 11 and a custom rom for a few months each, both of which worked perfectly, but this is still an issue that is here after using the T-Mobile MSM again.
Is there any good way of fixing this issue? I do have quite a few of the important partitions backed up if those are necessary.
Thanks!
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Click to collapse
Can u use op9 to global conversion msm with any problem

rizzmughal said:
Can u use op9 to global conversion msm with any problem
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Click to collapse
If you are talking about the T-Mobile to Global conversion MSM, yes.

BGW#10 said:
If you are talking about the T-Mobile to Global conversion MSM, yes.
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Click to collapse
Did u update to oos12 were there anyproblems u face in that

rizzmughal said:
Did u update to oos12 were there anyproblems u face in that
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The dual sim/no service bug. I am aware of the root fix, but I was looking to get the T-Mobile software working normally again.

BGW#10 said:
The dual sim/no service bug. I am aware of the root fix, but I was looking to get the T-Mobile software working normally again.
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Click to collapse
What is the target id for ur device is it india or tmo

rizzmughal said:
What is the target id for ur device is it india or tmo
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Click to collapse
I would say that it is tmo because the T-Mobile msm tools works no problem.