Need help on unlocking sim for T-Mobile One Plus 6t - OnePlus 6T Questions & Answers

Hey guys long time lurker here. I bought a One Plus 6t from T-Mobile and right after I bought it I did the international conversion.
Now I'm trying to sell the phone and the only way to get it sim unlocked is by using the T-Mobile Device Unlock app for what I personally know.
I downloaded the apk file for T-Mobile Device Unlock but it says not compatible. Is there any way to flashback to T-Mobile software version? Thanks!

heyfamily said:
Hey guys long time lurker here. I bought a One Plus 6t from T-Mobile and right after I bought it I did the international conversion.
Now I'm trying to sell the phone and the only way to get it sim unlocked is by using the T-Mobile Device Unlock app for what I personally know.
I downloaded the apk file for T-Mobile Device Unlock but it says not compatible. Is there any way to flashback to T-Mobile software version? Thanks!
Click to expand...
Click to collapse
Look here https://forum.xda-developers.com/oneplus-6t/how-to/tool-t-mobile-oneplus-6t-msmdownloadtool-t3868916

Related

Flashing international Firmware

Hello everyone,
yesterday, a family member gifted me an s7 from the USA (SM-G930P). He bought the phone off SPRINT as a SPRINT unlocked version, and, of course, because I live in Europe and want to use the phone with a European SIM card I have the "hands free activation" mark that is sitting on the top left edge of the display. I also noticed some changes, for example the "mobile data" toggle is nowhere to be found and also I don't have the options to choose the network mode (2G/3G/4G). I love the phone and I also would like to keep using it, I only need some answers from you guys.
My first question is, if the phone will actually let me use 4G network with my European SIM card, or will I be limited to 3G?
My second question is, If I can flash an international firmware for another carrier and another country on the phone, and if so, will I have the advantages of that firmware, like the Mobile Data Toggle??
Thank you very much for your answers.
If you install the 'Network' app you might be able to change the network type.
In general you should be able to use an unlocked P variant with a foreign SIM but you may have to activate with a Sprint SIM first.
You can't flash the international version since it's Exynos and the P version is Qualcomm CPU.
I am not sure if this model has Samsung region lock which is another thing to consider.
If I was you I would try to flash the U firmware (US unlocked) as it has the most support for international 4G bands among the Qualcomm US models. It also doesn't have all of the Sprint bloatware on it.
myphone12345 said:
If you install the 'Network' app you might be able to change the network type.
In general you should be able to use an unlocked P variant with a foreign SIM but you may have to activate with a Sprint SIM first.
You can't flash the international version since it's Exynos and the P version is Qualcomm CPU.
I am not sure if this model has Samsung region lock which is another thing to consider.
If I was you I would try to flash the U firmware (US unlocked) as it has the most support for international 4G bands among the Qualcomm US models. It also doesn't have all of the Sprint bloatware on it.
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Thank you for your reply. I am currently using the European Sim from my carrier and I have no problems with it. I managed to get rid of the Bloatware by using Package Disabler Pro, but it still sits there somewhere on my phone. So far, the phone is working very well and other than the bloat sitting on my memory and the lack of LTE, I have no complaints.
Can you tell me if someone has tried to flash the U firmware on a P model with success?
KingFoltest said:
Thank you for your reply. I am currently using the European Sim from my carrier and I have no problems with it. I managed to get rid of the Bloatware by using Package Disabler Pro, but it still sits there somewhere on my phone. So far, the phone is working very well and other than the bloat sitting on my memory and the lack of LTE, I have no complaints.
Can you tell me if someone has tried to flash the U firmware on a P model with success?
Click to expand...
Click to collapse
My phone was 930p now it's using 930U it runs significantly better on the 930U variant
vegoja said:
My phone was 930p now it's using 930U it runs significantly better on the 930U variant
Click to expand...
Click to collapse
Could you tell me how you did it, or link me a guide??
I had bought an unlocked Sprint galaxy S7 (930P) off ebay which died on me. Got it repaired from the service center and they sent me a locked device instead. The phone is currently on Software Version - G930PVPS4BQC1 and the hardware revision is Rev 0.6. I'll be using the phone in India and have a few questions.
1. I need to get this SIM unlocked from a service online. Does anyone know of a reliable place to do so?
2. If I flash the U Rom on it after unlocking it, will I lose the unlock? (I don't mind downgrading from Nougat to Marshmallow)
3. Should I unlock first then flash the ROM or flash the ROM first and then try to get it unlocked?
4. Will flashing the ROM directly unlock the phone itself?
Please advise.
...
you could try gsm zambia to unlock your phone it works i tried it myself a few days ago, also after my phone got unlocked i flash the U firmware/rom and the unlocked remained. so you should unlock your device first then flash the U firmware :good:
PS. if you one nougat better to downgrade if you can do marshmallow so when you wont have any issues flashing to U firmware. :cool
2kool2btrue said:
I had bought an unlocked Sprint galaxy S7 (930P) off ebay which died on me. Got it repaired from the service center and they sent me a locked device instead. The phone is currently on Software Version - G930PVPS4BQC1 and the hardware revision is Rev 0.6. I'll be using the phone in India and have a few questions.
1. I need to get this SIM unlocked from a service online. Does anyone know of a reliable place to do so?
2. If I flash the U Rom on it after unlocking it, will I lose the unlock? (I don't mind downgrading from Nougat to Marshmallow)
3. Should I unlock first then flash the ROM or flash the ROM first and then try to get it unlocked?
4. Will flashing the ROM directly unlock the phone itself?
Please advise.
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Click to collapse

Can I install T-Mobile ROM on US Unlocked S8 (SM-G950U1)

I have the US unlocked S8 (SM-G950U1). I use it on T-Mobile. If I put the T-Mobile ROM on it, can I later put back the unlocked ROM? (I suspect this question is probably answered somewhere on XDA but I didn't find it.)
Thanks
Charley
charley000 said:
I have the US unlocked S8 (SM-G950U1). I use it on T-Mobile. If I put the T-Mobile ROM on it, can I later put back the unlocked ROM? (I suspect this question is probably answered somewhere on XDA but I didn't find it.)
Thanks
Charley
Click to expand...
Click to collapse
I don't know the exact but yes
Here you go bud, I just did this exact thing last night to install the metro pcs firmware on my unlocked s8.
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817

TMobile Software Download?

Is there a way to get the newest version of TMobiles Oneplus 6T software downloaded on my device? I have the TMobile variant now and I need to use the Unlock app to unlock my phone because I just finished paying it off. The TMobile software comes preloaded onto the device but now I no longer have it. I wanted to know if there is A. a way to download the Device Unlock TMobile app or B. downgrade to a TMobile software version. I turned my device into an international version.
BraZiiBeast said:
Is there a way to get the newest version of TMobiles Oneplus 6T software downloaded on my device? I have the TMobile variant now and I need to use the Unlock app to unlock my phone because I just finished paying it off. The TMobile software comes preloaded onto the device but now I no longer have it. I wanted to know if there is A. a way to download the Device Unlock TMobile app or B. downgrade to a TMobile software version. I turned my device into an international version.
Click to expand...
Click to collapse
Reflash back to TMobile OS from here https://forum.xda-developers.com/oneplus-6t/how-to/tool-t-mobile-oneplus-6t-msmdownloadtool-t3868916 then SIM unlocked your phone using TMO unlock app, then flash back to international OOS of your likings.
Caltinpla said:
Reflash back to TMobile OS from here https://forum.xda-developers.com/oneplus-6t/how-to/tool-t-mobile-oneplus-6t-msmdownloadtool-t3868916 then SIM unlocked your phone using TMO unlock app, then flash back to international OOS of your likings.
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Click to collapse
Awesome! Thank you, I was searching for the longest time for this and could not find it at all.

Anyway to Flash T-Mobile OnePlus 6T to Stock Oxygen Image?

I recently purchased a T-Mobile OnePlus 6T. When I purchased it I thought it was the unlocked version but it has T-Mobile bloatware apps and when you turn on the device it says T-Mobile. It's unlocked so it works with Cricket but I kind of don't like all the T-Mobile stuff. Is there a way to just flash a factory unlocked ROM and make it look just like a regular unlocked OnePlus 6T?
Short Answer: Google the exact same thing.
Long Answer: in the Guides section, there is a whole thread dedicated to this. Its a good place to get started.
There is a thread on converting it from T-Mobile branding to international model with a hacked Qualcomm Snapdragon processor tool that bypasses the checks. It's also a huge help for when you accidentally brick it.
I have converted mine so I can say that the tool works (currently running a custom ROM).
Sent from my ONEPLUS 6T using Tapatalk
You could always root your device, then use root explorer to remove or replace the boot animation. Then use magisk and the magisk deblotter module to remove the offending apps.
Newerabs said:
I recently purchased a T-Mobile OnePlus 6T. When I purchased it I thought it was the unlocked version but it has T-Mobile bloatware apps and when you turn on the device it says T-Mobile. It's unlocked so it works with Cricket but I kind of don't like all the T-Mobile stuff. Is there a way to just flash a factory unlocked ROM and make it look just like a regular unlocked OnePlus 6T?
Click to expand...
Click to collapse
Look here https://forum.xda-developers.com/oneplus-6t/how-to/t-mobile-6t-to-international-t3888307

Got an AT&T phone on ebay, LMV350AWM, want to flash brazilian LMV350EAW ROM on it.

Got an AT&T phone on ebay, LMV350AWM, want to flash brazilian LMV350EAW ROM on it.
So guys, the V35 was my dream for months, and finally got an Ebay unit that fit can ship here. It's already coming.
I read that LG imported to Brazil the AT&T version, not the korean, with jut a Br ROM on it.
Will this flash work? need the unlocked bootloader for this ? or just LG software ?
You will save yourself some serious inconvenience by making sure it really is sim unlocked before flashing away from the AT&T rom. You can read about someone else's experience on that here:
https://forum.xda-developers.com/lg-v35/help/idea-to-unlock-v35-google-fi-t3905320
Miptzi said:
So guys, the V35 was my dream for months, and finally got an Ebay unit that fit can ship here. It's already coming.
I read that LG imported to Brazil the AT&T version, not the korean, with jut a Br ROM on it.
Will this flash work? need the unlocked bootloader for this ? or just LG software ?
Click to expand...
Click to collapse
cmrntnnr said:
You will save yourself some serious inconvenience by making sure it really is sim unlocked before flashing away from the AT&T rom. You can read about someone else's experience on that here:
https://forum.xda-developers.com/lg-v35/help/idea-to-unlock-v35-google-fi-t3905320
Click to expand...
Click to collapse
Tnx for the link. I've received info that the phone is fully unlocked, and already tested in Brazilian carriers. The previous owner already lived here and used the phone here with no issues. Will keep reading about it nonetheless
Hi mate, I also got an AT&T from USA, (I live in Spain) and I flashed V350AWMH10a_05_TCL_MX_OP_0124.kdz ROM from mexican carrier Telcel.
I use patched LGUP, and it works fine. No unlock bootloader needed.
Also is an Oreo ROM, not Pie, but I prefer, because Pie Roms had problems with call recorders app.

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