T-Mobile 6t OoS 10.3.4 question - OnePlus 6T Questions & Answers

So I've been out of the game for a while when it comes to converting and custom things. Right now I am on OoS 10.3.4 and was wondering if I could backtrack to the international version or could I just jump over? I've been driving myself crazy trying to figure it out. Lol. Also, I haven't seen anything on unlocking the bootloader if already on OoS 10.3.4. I'm coming from Samsung devices, so don't roast me too bad guys. Lol. Thanks in advance for the help and stay lifted my friends.
Sent from my ONEPLUS A6013 using Tapatalk

@lunarceli
You definitely don't want to ever downgrade unless it's using this msm tool. This is actually how I unlocked my bootloader on my T-Mobile 6t. By following directions on thread I'm linking here I was able to covert my device from T-Mobile model to an international model. Afterwards I then updated to latest OOS 10.3.4 full international rom... Careful because TMobile released a 10.3.4 OOS as well from what I've read on here. But running that patched tool converted me then I just did a simple fastboot oem unlock and selected to unlock my bootloader. Ill link firmware thread for international 6t here too. Will grab link after I make this comment and return and add it here in same post.
The msm tool allows you to downgrade but as far as I know trying to downgrade any other way will result in a brick,,which this same tool is also used to unbrick..
T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!) https://forum.xda-developers.com/showthread.php?t=3888307
Firmware thread (international model):https://forum.xda-developers.com/oneplus-6t/how-to/oneplus-6t-global-repo-oxygen-os-builds-t3865396

flash713 said:
@lunarceli
You definitely don't want to ever downgrade unless it's using this msm tool. This is actually how I unlocked my bootloader on my T-Mobile 6t. By following directions on thread I'm linking here I was able to covert my device from T-Mobile model to an international model. Afterwards I then updated to latest OOS 10.3.4 full international rom... Careful because TMobile released a 10.3.4 OOS as well from what I've read on here. But running that patched tool converted me then I just did a simple fastboot oem unlock and selected to unlock my bootloader. Ill link firmware thread for international 6t here too. Will grab link after I make this comment and return and add it here in same post.
The msm tool allows you to downgrade but as far as I know trying to downgrade any other way will result in a brick,,which this same tool is also used to unbrick..
T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!) https://forum.xda-developers.com/showthread.php?t=3888307
Firmware thread (international model):
Click to expand...
Click to collapse
Thank you for the information. I'm on the T-Mobile 10.3.4 OoS. That's why I asked the question.
Sent from my ONEPLUS A6013 using Tapatalk

lunerceli said:
Thank you for the information. I'm on the T-Mobile 10.3.4 OoS. That's why I asked the question.
Click to expand...
Click to collapse
Flashable OOS firmware: https://forum.xda-developers.com/oneplus-6t/how-to/oneplus-6t-global-repo-oxygen-os-builds-t3865396
I'm not sure as to if you can flash over. I wouldn't try it. I would follow first link I posted here and all will be smooth.
You can try some wild **** but I wouldn't if I were you. Far as bootloader unlock goes if your device is TMobile you must request an unlock code from T-Mobile and it takes 7 days. Then use code to unlock bootloader...If you covert you can just do fastboot oem unlock and your unlocked and then you can upgrade to whatever international version of OOS you want to be on and your good. Once you follow that thread I linked for converting you will then be on some ancient OOS international firmware and because your no longer TMobile model after running the patched tool from conversion thread no need for stupid code from T-Mobile to unlock your bootloader... Since your international model 6t now you can just do simple: sudo fastboot oem unlock and select yes on device and your then bootloader unlocked. If you want to stay on T-Mobile OOS 10.3.4 you can unlock bootloader just have to get code from T-Mobile and wait a week then use code to unlock your bootloader..
Request TMobile unlock bootloader code:
https://www.xda-developers.com/oneplus-6t-unlock-bootloader-root/
To bypass having to get code from T-Mobile and wait a week , converting to international 6t makes that happen for you..
(Edited)

@lunerceli
No worries, I have an OP 6T TMobile running 10.3.4 OOS and I just rooted/unlocked bootloader yesterday. As others have said, if you want to stay on 10.3.4 you do need to get the unlock code from TMobile, they'll email you a .bin file then you can go into ADB and flash it to unlock bootloader. The whole thing took 2 minutes once I had the unlock code. From there you can go about rooting it normally, flash TWRP/Magisk, custom ROM etc.
I had also thought about using the msm tool to downgrade to 9 and convert to international but I was scared about going to a lower version (didn't know if that would cause a brick) so I just waited the week for the unlock code.

Related

6T OTA's

I looked before posting but did not see the answer to this so....I have the TMobile one plus 6T sim unlocked but bootloader is still locked down (for now) is there a way without unlocking the bootloader to install the OTA's that are downloadable from the OnePlus website?
canemaxx said:
I looked before posting but did not see the answer to this so....I have the TMobile one plus 6T sim unlocked but bootloader is still locked down (for now) is there a way without unlocking the bootloader to install the OTA's that are downloadable from the OnePlus website?
Click to expand...
Click to collapse
Those would be international/unlocked 6T Noms and are not compatible.
So the only way to get the updates as they are available is to unlock the bootloader and flash the international rom?
canemaxx said:
So the only way to get the updates as they are available is to unlock the bootloader and flash the international rom?
Click to expand...
Click to collapse
Yes. I did and I have the T-Mobile 6T. Just use the fastboot version to convert and then update to 9.0.7. But please read all the directions thoroughly, so you don't make a mistake. PM me if you need help.

planning on upgrading from a LG G7 to the 6T question regarding root

I'm on T-Mobile so I'll have the T-Mobile variant I apologize if this question has been asked a million times but from what I've read in other threads its Sim unlocking then requesting an unlock.bin from oneplus then boot loader unlock root with magisk. I also read you could change the firmware to international version and also unlock the bootloader is this without having it Sim unlocked and is there any difference between the T-Mobile rom and the international rom? Again I apologize in advance just trying to figure out everything before I grab the phone next week. I'm upgrading to the 6T solely for root. Thank you for your time.
Edit:Already grabbed it and rooted, loving it so far
T-Mo variant can be flashed to international variant then bootloader unlocked. Then root, etc...
Flash the 9.0.11 OOS Firmware. Do not flash the 9.0.12 firmware because OP closed the loophole.
Scott said:
T-Mo variant can be flashed to international variant then bootloader unlocked. Then root, etc...
Flash the 9.0.11 OOS Firmware. Do not flash the 9.0.12 firmware because OP closed the loophole.
Click to expand...
Click to collapse
Ok thank you for the heads up where can I download the firmware
International: https://forum.xda-developers.com/oneplus-6t/how-to/tool-6t-msmdownloadtool-v4-0-oos-9-0-5-t3867448
T-Mo: https://forum.xda-developers.com/oneplus-6t/how-to/tool-t-mobile-oneplus-6t-msmdownloadtool-t3868916
I would download the T-Mo ROM to incase you need to switch back.
Follow the instructions in the posts for a hassle free installation.Also, you might want to take a look at this thread if you want to remove the SIM lock: https://forum.xda-developers.com/oneplus-6t/how-to/guide-sim-unlock-t-mobile-version-type-t3915269
You can unlock your SIM, request a token from OnePlus, and then legit unlock your bootloader on the T-Mo software. I am currently using INT software until my legit unlock token gets here.]Oh and as far as the differences between the two, The INT version does not have Google Feed but it does have advanced reboot menu and a couple other minor things.
Also no T-Mo bloat.
OTher than that they are the same.
Scott said:
International:https://forum.xda-developers.com/oneplus-6t/how-to/tool-6t-msmdownloadtool-v4-0-oos-9-0-5-t3867448
T-Mo:https://forum.xda-developers.com/oneplus-6t/how-to/tool-t-mobile-oneplus-6t-msmdownloadtool-t3868916
I would download the T-Mo ROM to incase you need to switch back.
Follow the instructions in the posts for a hassle free installation.Also, you might want to take a look at this thread if you want to remove the SIM lock: https://forum.xda-developers.com/oneplus-6t/how-to/guide-sim-unlock-t-mobile-version-type-t3915269
You can unlock your SIM, request a token from OnePlus, and then legit unlock your bootloader on the T-Mo software. I am currently using INT software until my legit unlock token gets here.]Oh and as far as the differences between the two, The INT version does not have Google Feed but it does have advanced reboot menu and a couple other minor things.
Also no T-Mo bloat.
OTher than that they are the same.
Click to expand...
Click to collapse
Ok again thank you for the help, it will be nice to have just one phone that's rooted instead of carrying around two, my main phone and a rooted ZTE Zmax from 2014

Downgrading converted TMO 6T on 10 down to Pie

what's the best way to go from converted 6T on 10 back to 9/pie on international ROM with safetynet passing? Ideally I'd like to just install a simple fastboot package or at worst MSM. The bootloader will eventually be relocked. Essentially I want a international converted TMO unit with android pie with safetynet passing.
edit: for anyone reading this in future, you can simply just follow the same steps as the original conversion and it will take you back to 9.x global rom with google pay working
T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!)
In the previous thread, we discussed a method to convert T-Mobile 6T's to the international variant, sort of, but it required an unlocked bootloader, which itself requires a SIM unlock which T-Mobile gives people a hard time about. However, it...
forum.xda-developers.com

Flashing certain mods issues on Tmobile variant

So, I have an OP6 that I've been using since launch with no issues. Got m to wife an unlocked tmobile 6t. After waiting a week for the unlock token, a definite reason I avoid branded phones, I unlocked the bootloader and rooted. Updated to 10.3.7 latest from tmobile. It has root, passes safety net, but keeps giving me compatibility errors when trying to flash certain mods. Twrp bluspark won't flash, haven't been able to flash any kernels. I'm able to do some magisk modules and have the official twrp. Any suggestions would be great, as I can't figure out what's going on.
I got that trash tmobel version off I flash the rebranded stock rom. Messed around with that then flashed linage 17.1
raven.warsong said:
I got that trash tmobel version off I flash the rebranded stock rom. Messed around with that then flashed linage 17.1
Click to expand...
Click to collapse
So, we can just flash the OnePlus OOS with no issue? I have looked at the tutorial to make it global but saw someone on reddit say they had just flashed the OOS direct from OP.
@Brand
BRANDENDEUCE said:
So, we can just flash the OnePlus OOS with no issue? I have looked at the tutorial to make it global but saw someone on reddit say they had just flashed the OOS direct from OP.
Click to expand...
Click to collapse
There is a tutorial with a special msm tool that converts t-mobile model to a global /international model. I have a T-Mobile OnePlus 6t and I converted to global model from tutorial over in guides section of the forums a year ago. I've never had any issues at all. I've flashed hundreds of times and used everything known to mankind made for my device and all has been fine. Check out the convert T-Mobile to global international model thread in guides section. I wouldn't flash a global oos on T-Mobile model. The tool that converts t-mobile to global model has modifications where it bypasses certain checks and whatnot or it wouldn't be possible
flash713 said:
@Brand
There is a tutorial with a special msm tool that converts t-mobile model to a global /international model. I have a T-Mobile OnePlus 6t and I converted to global model from tutorial over in guides section of the forums a year ago. I've never had any issues at all. I've flashed hundreds of times and used everything known to mankind made for my device and all has been fine. Check out the convert T-Mobile to global international model thread in guides section. I wouldn't flash a global oos on T-Mobile model. The tool that converts t-mobile to global model has modifications where it bypasses certain checks and whatnot or it wouldn't be possible
Click to expand...
Click to collapse
Do you have any issues with tap and pay or anything not working?
BRANDENDEUCE said:
Do you have any issues with tap and pay or anything not working?
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Click to collapse
I don't use that so I have no clue.

OnePlus 6t fully bricked

Hello, I tried to install the stock rom but it seems to brick the phone, now it only loads the fastboot mode and when I try to install the TWRP it only stays on the fastboot screen and does not go beyond
I tried to use MSMDownloader but when I hit start I get the error "images do not match with the phone"
What version of MSMDownloader are you using? I'm assuming you are using a T-Mobile branded 6T, as I get the same issue with the global packages. Try following this guide and using the 4.0.58 version and it's patch. That should let you get around the error.
T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!)
In the previous thread, we discussed a method to convert T-Mobile 6T's to the international variant, sort of, but it required an unlocked bootloader, which itself requires a SIM unlock which T-Mobile gives people a hard time about. However, it...
forum.xda-developers.com
izzy001 said:
What version of MSMDownloader are you using? I'm assuming you are using a T-Mobile branded 6T, as I get the same issue with the global packages. Try following this guide and using the 4.0.58 version and it's patch. That should let you get around the error.
T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!)
In the previous thread, we discussed a method to convert T-Mobile 6T's to the international variant, sort of, but it required an unlocked bootloader, which itself requires a SIM unlock which T-Mobile gives people a hard time about. However, it...
forum.xda-developers.com
Click to expand...
Click to collapse
Mine is dual Sim, will using the T-MOBILE version limit that function?
Saicoo said:
Mine is dual Sim, will using the T-MOBILE version limit that function?
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Click to collapse
That I do not know, but it should allow you to flash any fastboot images as if it was a unbranded version. If that does not work then I'd try some of the Android 9 versions of the MSMDownload tool.
izzy001 said:
That I do not know, but it should allow you to flash any fastboot images as if it was a unbranded version. If that does not work then I'd try some of the Android 9 versions of the MSMDownload tool.
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Click to collapse
Well I did what he told me and it worked, I returned to android 9 thank you very much

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