Hi guys !
Is it possible to convert the global version to a dual sim if you get like the dual sim tray from the chinese version and put it inside the global phone and work with both sims?
Or you need other things like a custom rom that enables the 2nd sim? I find it very curious why they opted for the single sim tray for the global version considering that i don't think they did any modification under the hood of the phone.
For me it's horrible going from a dual sim phone to a single sim considering that most of the people have one personal sim and one for work
djeyreaper said:
Hi guys !
Is it possible to convert the global version to a dual sim if you get like the dual sim tray from the chinese version and put it inside the global phone and work with both sims?
Or you need other things like a custom rom that enables the 2nd sim? I find it very curious why they opted for the single sim tray for the global version considering that i don't think they did any modification under the hood of the phone.
For me it's horrible going from a dual sim phone to a single sim considering that most of the people have one personal sim and one for work
Click to expand...
Click to collapse
It would be very interesting if someone managed to try the chinese version's sim tray because it looks like the hw is all there
I wonder if it could be this easy tho
Someone one the Mi 10 forum just tried and didn't work, at least with the global ROM. Maybe with the xiaomi.eu ROM......
check the global version from hong kong which seems to have enabled dual sim but check if the network bands are compatible in your country.
Check here -> https://forum.xda-developers.com/xiaomi-mi-10-pro/help/to-xiaomi-mi-10-pro-global-version-t4077141
It's Global version with DUAL SIM.
You're welcome
What do you mean Global Version dual sim?
With the Hong Kong Mi10 Pro, if i slot the 2nd sim in, will the phone really become dual sim?
pietroSV said:
Check here -> https://forum.xda-developers.com/xiaomi-mi-10-pro/help/to-xiaomi-mi-10-pro-global-version-t4077141
It's Global version with DUAL SIM.
You're welcome
Click to expand...
Click to collapse
if you're talking about gearbest, they are only selling single sim global version.
Why not buying Chinese version and flash xiaomi.eu rom
if buying a china phone and flash it with Europe rom, will the phone be dual sim?
Yes but you won't have all of the 4g bands needed for Europe
vodovodo said:
Why not buying Chinese version and flash xiaomi.eu rom
Click to expand...
Click to collapse
because flashing rom will disable your banking apps.
If flash it will Europe ROM, will the phone need to be rooted? i worry after flashing, i wont pass Android Safetynet Test... thus cannot use Google Pay.
itsjustbabyfat said:
If flash it will Europe ROM, will the phone need to be rooted? i worry after flashing, i wont pass Android Safetynet Test... thus cannot use Google Pay.
Click to expand...
Click to collapse
no need to root but you have to settle with unlocked bootloader
An Stupid move from Xiaomi, not just sell the Global version with higher price, but to release it with one sim slot! After 8 year with Xiaomi, I'm moving to ONEPLUS 8 Pro. I'm so upset because of that, have to sell my others Xiaomi gadgets! But i will do that because they proved so many times that don't care about customers opinion! China, the b a s t a r ds that spread a virus and earn money from it !
domon07 said:
because flashing rom will disable your banking apps.
Click to expand...
Click to collapse
I flashed xiaomi.eu to my mi note 10 and before it mi 9 pro 5g which was China exclusive
I had no problems with banking apps not Netflix for example
Did u have any experience with any mi device that broke ur banking applications?
vodovodo said:
I flashed xiaomi.eu to my mi note 10 and before it mi 9 pro 5g which was China exclusive
I had no problems with banking apps not Netflix for example
Did u have any experience with any mi device that broke ur banking applications?
Click to expand...
Click to collapse
There wont be any problems because his post was false. You keep your safetynet status and widevine L1 if you flash the eu rom. Everything is working.
Also, to finally answer the question: Someone on the german forum "android-hilfe" flashed the EU Rom on his Global mi 10 pro, and automatically got 2 IMEI numbers assigned. It looks like everyone should be able to just flash the eu rom and use the dual sim feature, even if you have the global variant.
https://www.android-hilfe.de/forum/...erhaeltlich.940088-page-12.html#post-12031674
dodongdodong said:
no need to root but you have to settle with unlocked bootloader
Click to expand...
Click to collapse
vodovodo said:
I flashed xiaomi.eu to my mi note 10 and before it mi 9 pro 5g which was China exclusive
I had no problems with banking apps not Netflix for example
Did u have any experience with any mi device that broke ur banking applications?
Click to expand...
Click to collapse
paysen said:
There wont be any problems because his post was false. You keep your safetynet status and widevine L1 if you flash the eu rom. Everything is working.
Also, to finally answer the question: Someone on the german forum "android-hilfe" flashed the EU Rom on his Global mi 10 pro, and automatically got 2 IMEI numbers assigned. It looks like everyone should be able to just flash the eu rom and use the dual sim feature, even if you have the global variant.
https://www.android-hilfe.de/forum/...erhaeltlich.940088-page-12.html#post-12031674
Click to expand...
Click to collapse
I stand corrected.. My worry is if I have an unlocked bootloader, some function will not work like safetynet, etc.. I don't really care about root anymore, I just don't wanna break anything om the phone. By the way, great to learn that CN version can be flashed with eu rom without a problem. same goes for global version to enable dual sim.
domon07 said:
I stand corrected.. My worry is if I have an unlocked bootloader, some function will not work like safetynet, etc.. I don't really care about root anymore, I just don't wanna break anything om the phone. By the way, great to learn that CN version can be flashed with eu rom without a problem. same goes for global version to enable dual sim.
Click to expand...
Click to collapse
Buuuuuuut CN version have other 5G issue as EU version, so take EU version and flash Global Xiaomi.eu Dev Rom so get EU modell with dual sim
domon07 said:
I stand corrected.. My worry is if I have an unlocked bootloader, some function will not work like safetynet, etc.. I don't really care about root anymore, I just don't wanna break anything om the phone. By the way, great to learn that CN version can be flashed with eu rom without a problem. same goes for global version to enable dual sim.
Click to expand...
Click to collapse
Everything works with unlocked bootloader, obviously I don't try you're banking app, gpay working fine on EU, so basically someone needs to buy a dual SIM tray and see if it works? I'm on Chinese version
I'm waiting for the double tray to arrive and I'll try the European rum. If it does not work, I will flash Xiaomi.eu rom. I have this setting in my Mi10 with stock rom. This is single sim version.
Related
Hi. Is there any custom roms that give dual sim support or one that contains firmware from dual sim version i can flash 5g version. As it does have two set of sim pins and also 2 modem do must me firmware issue
Any ideas
I'm pretty certain the hardware can't do dual SIM.
None of the specs available ever show dual SIM support in any of the 5G variants, so I think there IS a hardware restriction on this.
chwads2k8 said:
Hi. Is there any custom roms that give dual sim support or one that contains firmware from dual sim version i can flash 5g version. As it does have two set of sim pins and also 2 modem do must me firmware issue
Any ideas
Click to expand...
Click to collapse
You can do dual SIM but you lose 5G.
tech_head said:
You can do dual SIM but you lose 5G.
Click to expand...
Click to collapse
how can i do this? i dont mind losing 5g
Hi all,
I just ordered a Xiaomi Mi 10 Pro from an online shop in my country, Bulgaria.
It turns out it is the CN version with Dual SIM but with Global software installed on it, whatever this means.
I have thus a few questions:
- Will I have regular updated of the OS in this case?
- Will the phone be compatible with all the LTE / 5G bands in all Europe (it is important that it works everywhere because I travel a lot)?
- Will all the functions work properly?
Thank you in advance!
If they misrepresented this as the Global version, then return it and get the real thing. There is no guarantee that secure apps will work or continue to work and I believe that the 5G antenna is different on the Chinese version (but I might be wrong).
They said it's the Chinese version with the Global software. My main concern is exactly the antena and eventually the OS updates...
Safsem said:
They said it's the Chinese version with the Global software. My main concern is exactly the antena and eventually the OS updates...
Click to expand...
Click to collapse
I don't know how it has global software, if you keep it you can only unlock the bootloader if they didn't already do it and relock it. Worrying too say the least, I have Chinese version with EU ROM installed but I did that myself, I heard 5g working fine in EU I haven't been anywhere I can test with the lockdown. It's possible they have left it unlocked would be better if you can do it with your own account.
james1089 said:
I don't know how it has global software, if you keep it you can only unlock the bootloader if they didn't already do it and relock it. Worrying too say the least, I have Chinese version with EU ROM installed but I did that myself, I heard 5g working fine in EU I haven't been anywhere I can test with the lockdown. It's possible they have left it unlocked would be better if you can do it with your own account.
Click to expand...
Click to collapse
Could you send me/us the link for the tutorial you followed on installing the Global ROM on the Chinese phone? Does it work perfectly with google apps and dual sim? Are there any issues? Thanks
nobidion said:
Could you send me/us the link for the tutorial you followed on installing the Global ROM on the Chinese phone? Does it work perfectly with google apps and dual sim? Are there any issues? Thanks
Click to expand...
Click to collapse
I installed the EU ROM using twrp have to unlock bootloader first tho. I haven't tried 2 Sims but I'm sure that will work just fine. EU ROM is better than global anyway.
james1089 said:
I installed the EU ROM using twrp have to unlock bootloader first tho. I haven't tried 2 Sims but I'm sure that will work just fine. EU ROM is better than global anyway.
Click to expand...
Click to collapse
I am also tempted to buy the CN version from Giztop with Google apps installed. I'm planning to unlock it eventually and flash eu rom on it. Can I update the phone through built-in software update? or do i need to flash it everytime? what's the downside of doing it aside from getting your bootloader unlocked?
Global v CN
I have researched this in depth as some of the specs are different on different websites selling it. From what I've seen, the CN dual SIM version with app store added lacks a significant Band 20 for Europe LTE, whereas the single SIM Global Version has the band 20; Xiaomi have said the Global version will be single SIM only. I believe Google Pay will not work on the CN version: you can check the different specs out at wonda mobile a Hong Kong seller. I believe it is possible to flash the EU ROM down the line but haven't come across a method to follow.
Safsem said:
Hi all,
I just ordered a Xiaomi Mi 10 Pro from an online shop in my country, Bulgaria.
It turns out it is the CN version with Dual SIM but with Global software installed on it, whatever this means.
I have thus a few questions:
- Will I have regular updated of the OS in this case?
- Will the phone be compatible with all the LTE / 5G bands in all Europe (it is important that it works everywhere because I travel a lot)?
- Will all the functions work properly?
Thank you in advance!
Click to expand...
Click to collapse
Hi, I am also from Bulgaria. My phone is coming today or tomorrow from China as well. It's a chinese version 12/256GB. On chinese version you can easily install Google services, but languages are 5-6 total and english of course.
If they say they have loaded bulgarian language, most probably they have installed Xiaomi EU rom. If you have any other question - I will be happy to help.
domon07 said:
I am also tempted to buy the CN version from Giztop with Google apps installed. I'm planning to unlock it eventually and flash eu rom on it. Can I update the phone through built-in software update? or do i need to flash it everytime? what's the downside of doing it aside from getting your bootloader unlocked?
Click to expand...
Click to collapse
I may get the giztop Pro version(china) with the global rom flashed.
As long as someone has a Authorized Xiaomi Account. They can use the Xiaomi tool to flash.
But I can't find out if the 5G will work on the Three network in the UK
---------- Post added at 10:22 AM ---------- Previous post was at 10:17 AM ----------
drmorten said:
I have researched this in depth as some of the specs are different on different websites selling it. From what I've seen, the CN dual SIM version with app store added lacks a significant Band 20 for Europe LTE, whereas the single SIM Global Version has the band 20; Xiaomi have said the Global version will be single SIM only. I believe Google Pay will not work on the CN version: you can check the different specs out at wonda mobile a Hong Kong seller. I believe it is possible to flash the EU ROM down the line but haven't come across a method to follow.
Click to expand...
Click to collapse
https://forum.xda-developers.com/xi...lobal-version-dual-sim-version-t4075263/page6
Look at the posts from QAM
À
deuse said:
I may get the giztop Pro version(china) with the global rom flashed.
As long as someone has a Authorized Xiaomi Account. They can use the Xiaomi tool to flash.
But I can't find out if the 5G will work on the Three network in the UK
---------- Post added at 10:22 AM ---------- Previous post was at 10:17 AM ----------
https://forum.xda-developers.com/xi...lobal-version-dual-sim-version-t4075263/page6
Look at the posts from QAM
Click to expand...
Click to collapse
I'm very close on pulling the trigger on mi 10 pro CN but not flashed with global rom. only with google apps installed because I wanna unlock the bootloader by myself and flash eu rom. If you buy the CN version with global rom flashed, they will have the code for unlocking the bootloader and I doubt if you can get the code from giztop.
You have to use MI unlock tool to unlock the bootloader. You will have to wait 7 days and you will be authorized for an unlock.
5G
Hi, bands are as in image for UK. Note again for 4G Band 20 is absent on CN version. All 5G in UK is 5G NR band n78 which is present in both CN and global version of the phone.
deuse said:
I may get the giztop Pro version(china) with the global rom flashed.
As long as someone has a Authorized Xiaomi Account. They can use the Xiaomi tool to flash.
But I can't find out if the 5G will work on the Three network in the UK
Click to expand...
Click to collapse
In my part of the world, we use B3 and B28. CN version only have B3 and no B28. Does that mean I wont have 4G in some areas? Now I'm leaning towards buying the Global now.
Try flash global rom,then back to cn rom, will lose one sim and auto reboot.
Safsem said:
Hi all,
I just ordered a Xiaomi Mi 10 Pro from an online shop in my country, Bulgaria.
It turns out it is the CN version with Dual SIM but with Global software installed on it, whatever this means.
I have thus a few questions:
- Will I have regular updated of the OS in this case?
- Will the phone be compatible with all the LTE / 5G bands in all Europe (it is important that it works everywhere because I travel a lot)?
- Will all the functions work properly?
Thank you in advance!
Click to expand...
Click to collapse
I order these all the time, this the Chinese rom with Google apps sideloaded more than likely. I'm not entirely sure if there is even a global rom available yet. That being said, your software will be one of those two options. More then likely, the former. The hardware will be Chinese, so 5G will not be supported here in the USA, just 4G LTE and not all bands at that.
You will get the MIUI updates, but not the Google updates. This is solved rather easily though by installing rom from Xiaomi.eu. These ROMs are installed using TWRP and are updated weekly with MIUI, as well as, Google updates.
jim262 said:
I order these all the time, this the Chinese rom with Google apps sideloaded more than likely. I'm not entirely sure if there is even a global rom available yet. That being said, your software will be one of those two options. More then likely, the former. The hardware will be Chinese, so 5G will not be supported here in the USA, just 4G LTE and not all bands at that.
You will get the MIUI updates, but not the Google updates. This is solved rather easily though by installing rom from Xiaomi.eu. These ROMs are installed using TWRP and are updated weekly with MIUI, as well as, Google updates.
Click to expand...
Click to collapse
I think if you are buying cn version it's best to get without play store, that's what I did, all you need is play store APK, all frame work is already there
Giztop has emailed me say that they will flash the Global rom which they get from Xiaomi.
I did say I don't want the Xiaomi EU version.
I think I will take a punt. But I bet it will take weeks to get here via DHL?
deuse said:
Giztop has emailed me say that they will flash the Global rom which they get from Xiaomi.
I did say I don't want the Xiaomi EU version.
I think I will take a punt. But I bet it will take weeks to get here via DHL?
Click to expand...
Click to collapse
Don't know mine came really quick from Alibaba, like 5 day's to UK
deuse said:
Giztop has emailed me say that they will flash the Global rom which they get from Xiaomi.
I did say I don't want the Xiaomi EU version.
I think I will take a punt. But I bet it will take weeks to get here via DHL?
Click to expand...
Click to collapse
I'm very intrigued to knowing how this turns out! I want to do the same thing. I just don't know how trust worthy Giztop is as far as flashing the official Rom and what risks that has.
Hi there,
Hi there
Im looking to purchase a Find X2 Pro, however source options are limited in the UK, so I was looking to buy from Wonda, however this is Chinese version (Dual Sim)
I understand that the Global version on release will only be single sim?
Could I flash a Chinese handset with Global rom and still have dual sim? https://oppo-uk.custhelp.com/app/so...zX0thNmxjUkZVdXZhMDBHSzBkd0FOWW0yQSUyMSUyMQ==
Thanks
GT
Bit late but short answer - no, at least not yet.
Was hoping to do the same ?
Voipboy01 said:
Hi there,
Hi there
Im looking to purchase a Find X2 Pro, however source options are limited in the UK, so I was looking to buy from Wonda, however this is Chinese version (Dual Sim)
I understand that the Global version on release will only be single sim?
Could I flash a Chinese handset with Global rom and still have dual sim? https://oppo-uk.custhelp.com/app/software_update_detail/p_name/Find+X2+Pro/session/L3RpbWUvMTU4OTU0MTQwMS9nZW4vMTU4OTU0MTQwMS9zaWQvZlVJUENYUWNlRkpLeno5YWM3akUlN0VrVXZpVHp4QUlFYWw0UGtIZk81Y2hMZ2JpakMzRHZXcXh0WTBzZXNIbkdQSGZOcm8lN0VEZnBuRlVuS0lac2J1M1Z4Z09WZkQzQWEzX0thNmxjUkZVdXZhMDBHSzBkd0FOWW0yQSUyMSUyMQ==
Thanks
GT
Click to expand...
Click to collapse
Hello,
Did you find a way to do this? Even, I bought a Find X2 Pro chinese rom and I would like to switch it to Global ROM. Please let me know if you found a way to do this.
Thanks,
Sri
Voipboy01 said:
Hi there,
Hi there
Im looking to purchase a Find X2 Pro, however source options are limited in the UK, so I was looking to buy from Wonda, however this is Chinese version (Dual Sim)
I understand that the Global version on release will only be single sim?
Could I flash a Chinese handset with Global rom and still have dual sim? https://oppo-uk.custhelp.com/app/software_update_detail/p_name/Find+X2+Pro/session/L3RpbWUvMTU4OTU0MTQwMS9nZW4vMTU4OTU0MTQwMS9zaWQvZlVJUENYUWNlRkpLeno5YWM3akUlN0VrVXZpVHp4QUlFYWw0UGtIZk81Y2hMZ2JpakMzRHZXcXh0WTBzZXNIbkdQSGZOcm8lN0VEZnBuRlVuS0lac2J1M1Z4Z09WZkQzQWEzX0thNmxjUkZVdXZhMDBHSzBkd0FOWW0yQSUyMSUyMQ==
Thanks
GT
Click to expand...
Click to collapse
I have the global phone running dual SIM and latest Android 11. The SIM tray supplied is the single SIM but the 2nd slot is active, bought the dual tray from China and flashed the Singapore ex and have dual SIM.
Srikanth538 said:
Hello,
Did you find a way to do this? Even, I bought a Find X2 Pro chinese rom and I would like to switch it to Global ROM. Please let me know if you found a way to do this.
Thanks,
Sri
Click to expand...
Click to collapse
Dual SIM working fine on the single SIM UK unit.
Hello,
I'm getting my Chinese Mi 10 Pro in 3 days. It has Global ROM pre-installed but I think it's probably better to flash the EU rom.
Does anyone know if the dual sim work with EU rom?
Thanks!
galr said:
Hello,
I'm getting my Chinese Mi 10 Pro in 3 days. It has Global ROM pre-installed but I think it's probably better to flash the EU rom.
Does anyone know if the dual sim work with EU rom?
Thanks!
Click to expand...
Click to collapse
Mi 10 Pro works fine with Xiaomi.eu ROM and dual SIM works perfectly
Yes , with EU rom dual sim worked. I Have MI 10Pro from China and I tried all of roms. EU rom based on China firmware.
I just got the global version, with single SIM. It really has a single sim tray which does not allow for a second SIM.
What I'm asking myself is: when I buy a dual sim tray and install xiaomi.eu firmware after unlock, am I then able to use the phone with dual SIM?
s3axel said:
I just got the global version, with single SIM. It really has a single sim tray which does not allow for a second SIM.
What I'm asking myself is: when I buy a dual sim tray and install xiaomi.eu firmware after unlock, am I then able to use the phone with dual SIM?
Click to expand...
Click to collapse
that's what people have been saying. dual sim works on xiaomi.eu rom if you replace the sim tray with dual.
Flashed Xaomi.eu rom Miui12 20.5.24 beta
and now I can see(software vise) both sim slots and different imei.
Just waiting double sim tray to arrive
s3axel said:
I just got the global version, with single SIM. It really has a single sim tray which does not allow for a second SIM.
What I'm asking myself is: when I buy a dual sim tray and install xiaomi.eu firmware after unlock, am I then able to use the phone with dual SIM?
Click to expand...
Click to collapse
Can you please tell me where you got the Pro single SIM from?
Much appreciated.
samteeee said:
Can you please tell me where you got the Pro single SIM from?
Much appreciated.
Click to expand...
Click to collapse
Got mine from Wondamobile, good price and very fast delivery (5 days) to Germany...
s3axel said:
Got mine from Wondamobile, good price and very fast delivery (5 days) to Germany...
Click to expand...
Click to collapse
Thanks a lot.
I have an OP9 with T-mobile variant. I was curious if I change it to global and replaced it with a dual sim tray.
Does it work or does anyone succeed?
Thank you.
No way men. Not possible
Mr Hassan said:
No way men. Not possible
Click to expand...
Click to collapse
Why not can u explain
rizzmughal said:
Why not can u explain
Click to expand...
Click to collapse
Why possible can you explain it?
Mr Hassan said:
Why possible can you explain it?
Click to expand...
Click to collapse
I ask u question and in answer u ask question i said did u try it and failed let us know
Mr Hassan said:
Why possible can you explain it?
Click to expand...
Click to collapse
It has to be tested in real phone. It could be that T-mobile has disabled it so it still has dual sim support from factory, like SS
My understanding is the USA global and tmobile don't have the pins to read from sim 2
Then why is there any dual sim bug after converting
I waste months on this $hit
And i giveup you can try it maybe you can
rizzmughal said:
Then why is there any dual sim bug after converting
Click to expand...
Click to collapse
If you flash india or the EU which has dual sim. It believes you should have it software wise.
MrSteelX said:
If you flash india or the EU which has dual sim. It believes you should have it software wise.
Click to expand...
Click to collapse
With msm or conversion method
rizzmughal said:
With msm or conversion method
Click to expand...
Click to collapse
How it's done doesn't matter
I
MrSteelX said:
How it's done doesn't matter
Click to expand...
Click to collapse
I ve tried conversion meth 2nd sim appears after c.6 update and 2nd imei is null
MrSteelX said:
If you flash india or the EU which has dual sim. It believes you should have it software wise.
Click to expand...
Click to collapse
Men without testing you don't need to post becoz after this its updated to os12 and 2nd imei show but useless
Becoz 2nd sim even not recognized
rizzmughal said:
I
I ve tried conversion meth 2nd sim appears after c.6 update and 2nd imei is null
Click to expand...
Click to collapse
What MrSteelX is saying is if the software you flashed to your phone is the India version or the EU version your phone will think it is the India or EU model of the phone and those phones have dual sim. This causes the issue. You need to flash your phone back to the TMobile software or the global software.
It doesn't matter what method you used to do this it's the software you put on the phone that is making it think it is dual sim and causing your issue.
Kievanightwing said:
What MrSteelX is saying is if the software you flashed to your phone is the India version or the EU version your phone will think it is the India or EU model of the phone and those phones have dual sim. This causes the issue. You need to flash your phone back to the TMobile software or the global software.
It doesn't matter what method you used to do this it's the software you put on the phone that is making it think it is dual sim and causing your issue.
Click to expand...
Click to collapse
Whenever i convert my tmo flashed software to global its the same issue no matter whatit only appears after c.6x updates before that no dual sim like c.48 or c.47 no dual sim bug there
rizzmughal said:
Whenever i convert my tmo flashed software to global its the same issue no matter whatit only appears after c.6x updates before that no dual sim like c.48 or c.47 no dual sim bug there
Click to expand...
Click to collapse
6x is not a valid number. What is the full number
MrSteelX said:
6x is not a valid number. What is the full number
Click to expand...
Click to collapse
I mean after the updates start from c.61 c.62 c.63 c.64 its the same after 2nd sim appears mobile data stop working
rizzmughal said:
I mean after the updates start from c.61 c.62 c.63 c.64 its the same after 2nd sim appears mobile data stop working
Click to expand...
Click to collapse
Every version you listed with the exception of c.63 is for either the EU hardware or the India hardware.
c.63 might be for global but I'm not sure. The problem here is you've converted your phone to EU/India. If you're rooted there are some fixes you can flash via magisk otherwise flash the tmobile software back to the phone.
I'm using a North American TMobile OnePlus9 myself and it says its up to date at version c.20 and I'm not getting the dual sim issue so I would suggest finding c.20 and flashing that to the phone.
Kievanightwing said:
Every version you listed with the exception of c.63 is for either the EU hardware or the India hardware.
c.63 might be for global but I'm not sure. The problem here is you've converted your phone to EU/India. If you're rooted there are some fixes you can flash via magisk otherwise flash the tmobile software back to the phone.
I'm using a North American TMobile OnePlus9 myself and it says its up to date at version c.20 and I'm not getting the dual sim issue so I would suggest finding c.20 and flashing that to the phone.
Click to expand...
Click to collapse
I m on t mobile stock c.20 but t mobile is too slow in updates plus touch response is not that good on tmobile stock as compare to global whenever i gaming it also lags on tmobile stock but it doesnt on global or eu and by mentioning all those numbers is i have tried all those versions global eu or india all of em its the same problem end up plus i know baout data retain magisk fix but i sont want to root when i root i lose some features in gaming i have without root and those features are also not available in tmobile stock