yashsingh1/xdaforums huggingface dataset:
[OnePlus 8T Guides, News, & Discussion] mslezak:
Dual SIM works I had a Mint and Metro-PCS in at the same time. Properly detects both and made calls on each. My dual tray is slightly off (seal I think is too big actually) it wouldn't be hard to cut the original single sim tray to fit another one it's just some thin plastic barriers. If I do it I'll post pics. Razor blade and a pencil to trace the other one out. NA variant drops to Widevine L3 though FYI with the BL unlocked, but I found a workaround. Use the Magisk Module HideProps and select either an EU or Global Op8T fingerprint; L1 comes right back! The only app I can't get working is Amazon Shopping... Otherwise I'm Magisk rooted via Canary (man that Payload tool made it easy with an OTG USB card boot.img already there no stupid flashing broken TWRP and SU pulls.). Also running a custom Radioactive kernel I built with Proton Clang-12 and added 800 and 900mhz GPU clocks. Nice and smooth. Magisk hide worked on everything (Gpay included, just bought a beer) except one medical app won't allow me to unlock via FP even Magisk hidden. Still pretty good. I don't like moving the Magisk folder it may make all work but I can deal with 1 app I hardly use with Google login.

There aren't any bugs on the system info page or anything. Everything appears to work. If anyone wants the NA version using the Global flash all script let me know I can post on Mega.nz
[OnePlus 8T Guides, News, & Discussion] mslezak:
Here's the payload extracted NA version for anyone that needs it. https://mega.nz/file/StpHRK7Q#KVKG5fTQ7iZV_na1WEpwZVTO09RraMSHRaP4sJA7W5o I'd still run the 2 scripts at the beginning of this post to update drivers and what not, although the latest ADB and fastboot are included here. Also magisk_patched_NA.img is included patched with Magisk Manager Canary https://raw.githubusercontent.com/topjohnwu/magisk_files/canary/app-debug.apk which you could flash via fastboot flash boot magisk_patched_NA.img from normal fastboot. That version of Magisk Manager is required. I'm running it now.
[OnePlus 8T Guides, News, & Discussion] mslezak:
FYI I believe the normal TMO sim tray has metal cutouts before the seal maybe that's part of the IP68 rating the NA doesn't have. TMO on the left dual SIM Op8 tray on the right.
[OnePlus 8T Guides, News, & Discussion] awr128:
You can you just have to modify the flash all batch script using notepad and edit the line that says fastboot flash boot boot.img

To

Fastboot flash boot magisk_patched_NA.img (or whatever you he modified boot image name is.
[OnePlus 8T Guides, News, & Discussion] awr128:
You can you just have to modify the flash all batch script using notepad and edit the line that says fastboot flash boot boot.img

To

Fastboot flash boot magisk_patched_NA.img (or whatever the modified boot image is named)
[OnePlus 8T Guides, News, & Discussion] craznazn:
ebay has 8t dual SIM trays for $5 or so now. Shipping is slow though, so it'll take a few weeks.

Perhaps kernel dropped wildvine? I'm on AA and still have L1.
[OnePlus 8T Guides, News, & Discussion] mslezak:
I found a workaround - HideProps in Magisk and select an Op8T EU or Global official fingerprint. L1 Widevine comes right back to Netflix :)
[OnePlus 8T Guides, News, & Discussion] sameog:
Gang, quick question:. If I flash the global conversion, will I be one global modem or tmobile modem? Just curious. NOTE:. If this has been covered, direct me the post number/link. If not, then, just curious.
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Probably the Global which is much faster and better then the T-Mobile modem
[OnePlus 8T Guides, News, & Discussion] mslezak:
Figured out how to fix the Amazon Shopping app on a TMO converted to NA phone. The issue was AdAway. You go to options, turn off the webserver, and then set the IP to 0.0.0.0 all under root based ad blocker.
[OnePlus 8T Guides, News, & Discussion] jasons1004:
Hello, Tmo 8T here -

So I recently unlocked bootloader and tried to use the convert tool and everything worked fine until global finished flashing. I got crashdump do_exit etc after reboot.

So I MSM back to TMO factory and everything is fine now, back to locked TMO stock. However I cannot run unlock_code.bin anymore as it says im locked but I have OEM unlocking checked and sim unlocked.

1. what can i do about the crashdump do_exit error if i get past unlocking bootloader again

2. what is causing me not to be able to unlock bootloader after MSM back to TMO stock? Can i only use oneplus unlock token once? i dont remember that being a thing
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
You don't need the unlock bin anymore that's just the first time now just unlock it via fastboot oem unlock commend
[OnePlus 8T Guides, News, & Discussion] jasons1004:
thats what i thought but tried oem unlock command but says "cannot do on locked device" sort of message cant process
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
OEM Unlock option in the device is check on?
[OnePlus 8T Guides, News, & Discussion] jasons1004:
yes after MSM flash i did initial boot and checked OEM and debugging then reboot and try oem unlock > "locked device" message
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
I had issues the second time but I was sent trying unlock token instead of unlock code..... Double check the file name? Also is the file in the root directory? I had to use the code to unlock the second time... Is usb debugging on?
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Strange that it doesn't work, because I had that exact error msg and I had to MSM back and unlocked it again without a issue
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
Did you change the usb setting to file transfer?
[OnePlus 8T Guides, News, & Discussion] jasons1004:
yeah its frustrating - the instructions say TOKEN but my file name is CODE

I think i even tried TOKEN but gave error like no target file or something

I am not sure what else to try but I will tinker some more and see..sucks bc i was so close. I unlocked and then flashed global no prob but rebooted to crashdump (no exit error) any ideas on that ?
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Nevermind what the code says, just rename the part where it says token or code to what's Called by you and try that way, but then again you technically don't need it anymore since you already did it in the past
[OnePlus 8T Guides, News, & Discussion] awr128:
Make sure your in normal fastboot NOT fastboot d to use the unlock_code.bin and to run fastboot oem unlock

Anytime you use the man tool you have to use the unlock_code.bin to unlock again.
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
That wasn't the case by me, I MSM back to stock just unlocked via fastboot oem unlock commend and it worked just fine then flashed global and relocked the Bootloader
[OnePlus 8T Guides, News, & Discussion] craznazn:
If you MSM'd back to stock, you need to unlock again. However, your device should still be SIM unlocked, so just flash unlock_code.bin again. I've MSM'd to factory many times prior and never had an issue. As others have said, make sure you are in regular fastboot and NOT fastbootd.

Once you are unlocked again, DO NOT USE MINIMAL ADB/FASTBOOT, it hasn't been updated for years. You got a crashdump, so likely you were using minimal. Check the OP again and make sure you have latest from Google or Tool installer.
[OnePlus 8T Guides, News, & Discussion] sameog:
@crazazn: no wonder I got crashdump. I was using minimal adb fastboot.
[OnePlus 8T Guides, News, & Discussion] mslezak:
Yeah I got crashdump on Minimal use the scripts at the start of this post and it will work. Also, ensure after MSM the phone didn't lock itself back to TMO. Mine did once, you just select request permanent unlock and good to go.
[OnePlus 8T Guides, News, & Discussion] cammykool:
yes i am on latest. I see the BL screen. should i be elsewhere?
[OnePlus 8T Guides, News, & Discussion] craznazn:
No, that's correct. Ill hit you up in PMs
[OnePlus 8T Guides, News, & Discussion] cammykool:
Sweet.
[OnePlus 8T Guides, News, & Discussion] Shooter7889:
You have to Google "local upgrade" and download that oneplus apk. Then once u install it then search for system update in the activity launcher and click on it to launch it and find the ota u downloaded
[OnePlus 8T Guides, News, & Discussion] KMHartford:
im having that same issue. i thought i have the latest platform-tools because "fastboot reboot fastboot" doesn't work to reboot into fastbootd
[OnePlus 8T Guides, News, & Discussion] craznazn:
If you're having issues rebooting into fastbootd and you have a FC(#) below device state in the bootloader, you might need to MSM first.
[OnePlus 8T Guides, News, & Discussion] cammykool:
After a lot of fighting and troubleshooting we finally got mine to boot. Settling in now!
[OnePlus 8T Guides, News, & Discussion] Anon1136:
With the activity launcher method?
[OnePlus 8T Guides, News, & Discussion] cammykool:
No. OP method. the local update method isn't going to work all of the supporting files aren't there either. I even went as far as finding the APK and side loading it. when you push the local update button nothing happens
[OnePlus 8T Guides, News, & Discussion] kenbrownstone:
To do this I've gotta get unlock code right ?

So ready for this hate tmo
[OnePlus 8T Guides, News, & Discussion] craznazn:
Yes, you'll need an unlocked bootloader
[OnePlus 8T Guides, News, & Discussion] cammykool:
Yes. You need to be fully bootloader unlocked
[OnePlus 8T Guides, News, & Discussion] cammykool:
THe dual sim does work, what is odd is that in the settings it shows both IMEIs are identical. but it does work.
[OnePlus 8T Guides, News, & Discussion] craznazn:
Nice, thanks for confirming. It so happens thats what I planned on doing too (Mint/Tmo) lol, I was worried if the same IMEI connected to the same tower it'd have issues.
[OnePlus 8T Guides, News, & Discussion] cammykool:
Didn't seem to. I just used my best friends Mint sim.
[OnePlus 8T Guides, News, & Discussion] jwarrior319:
Even the normal version is dual standby. That means it cant use both sims at once. It would require two radio chipsets inside the device which would increase the price greatly. It's actually pretty standard for dual sim devices at least in north america to only have one imei.
[OnePlus 8T Guides, News, & Discussion] jwarrior319:
I made a script to allow you to flash the partitions without manually entering the commands one by one.

so follow OP up through:

adb reboot bootloader
# wait for fastboot
fastboot -w #Clear data to be safe, you don't technically need to do this
fastboot flash boot boot.img #you can use magisk_patched.img here
fastboot reboot fastboot

Then place the script in the folder with the files to flash, open terminal in that folder, and enter:

chmod a+x ./convert-tmo.sh

then

./convert-tmo.sh

after the script finishes continue to step 5 in OP

Download: https://github.com/jwarrior319/convert-tmo-script/releases/
[OnePlus 8T Guides, News, & Discussion] cammykool:
This is the man right here. Nice work!
[OnePlus 8T Guides, News, & Discussion] cammykool:
OnePlus Buds Z work! I don't thi k they have baked in comparability with the T-Mo build.
[OnePlus 8T Guides, News, & Discussion] jwarrior319:
Its actually the easiest bash script to make. Idk of a way to make one for windows though. But it'll work on linux/macOS and any other unix based systems. I guess the windows linux subsystem would suffice though.
[OnePlus 8T Guides, News, & Discussion] awr128:
I think you should put not to use minimal and and fastboot specifically in your OP, it's starting to come as a common mistake ppl are using.
[OnePlus 8T Guides, News, & Discussion] craznazn:
I tried to edit OP lol, it's over the new max character limit and doesn't let me save!
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
So now there is a limit of characters?
[OnePlus 8T Guides, News, & Discussion] craznazn:
nvm OP edited.

I tried editing a few days ago right after the switchover. I'm sure there's a character limit but it's been increased again.
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
So I guess they weren't set up fully in the beginning of the switchover and now they fixed it
[OnePlus 8T Guides, News, & Discussion] irocevo:
I'm new to oneplus phones. I had HTC phones in the past, if something got messed up while flashing I could use a ruu and flash back to stock that included radios and everything. Does the MSM tool for oneplus do the same thing? I already backup radios just in case. Is there anything else I should backup? I'm just a little nervous not having fully working twrp.
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Yes it does exactly the same,you don't need to back up anything, MSM has everything
[OnePlus 8T Guides, News, & Discussion] irocevo:
Great. I can't wait to try converting from t-mobile to global and playing around with other roms. I may trying building some from source, its been a while :)
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
Couple things I've had issues with:

-Lock screen unresponsive some times. Power button does nothing

-calls don't go through. Trying to place a call and it immediately ends. Toggling wifi or rebooting the phone seems to fix it. I've had this happen on other devices but it happens more on this one. Still not sure it's an 8t

issue

-visual voicemail stops when the screen goes off.
[OnePlus 8T Guides, News, & Discussion] Jed!Master:
I had the signal issue since I flashed the EU rom and still have it here and there on the Global rom. With both roms I used the modem that came with the rom. Not sure why we gotta toggle airplane mode but it works after that. Another user had that issue not sure if there was a fix or something we are doing wrong
[OnePlus 8T Guides, News, & Discussion] raven911:
After going through this conversion, is it possible to re-lock the bootloader and pass safetynet / Google Play certification?
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
Yes. But you need to use oxygen updater...... Download the full update and update. Then you can relock
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Yes,but before you do that take the first OTA via local Update then re-lock or else you'll have the crash load error
[OnePlus 8T Guides, News, & Discussion] awr128:
You can't be rooted, or I should say you will lose root.
[OnePlus 8T Guides, News, & Discussion] raven911:
Thanks I'm wondering if anyone has done this first-hand to confirm?? I need the dual-sim functionality and want to maintain safetynet without having to do magisk.

I was previously using a OP6T t-mobile version, and converted to global to get dual-sim functionality. I never unlocked the bootloader, and safetynet was working fine until Android 10 was pushed out, and now the phone won't pass safetynet, likely because of some distinction between the tmobile model and global variant.

Thanks!
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
I can confirm
[OnePlus 8T Guides, News, & Discussion] raven911:
Thanks, thats great to hear. So on the first post, there's a report of the "About Phone" screen seems to be broken: Processor, Camera, and Screen all show "None". Was just curious, after relocking the bootloader, does that page remain buggy?
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
No. That was only when going from TMO to EU..... Going from TMO to Global all is good
[OnePlus 8T Guides, News, & Discussion] badpanda:
So on the conversion to Global, does it act like a full pledged unlocked oneplus 8t global version directly from oneplus with ota updates and everything?
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
Correct
[OnePlus 8T Guides, News, & Discussion] badpanda:
Great thank you.

And it is basically same steps to follow to convert to Global as EU version? Also any bugs still there like in the about section where it shows a picture of the oneplus 6T and there is some information missing completely?
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
Seems like all that is fixed in the Global
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Yup
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
That's not true, I went from TMO to Global and it still says none
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
You are correct sir. I never even looked
[OnePlus 8T Guides, News, & Discussion] awr128:
Same here, still none.
[OnePlus 8T Guides, News, & Discussion] badpanda:
I sent you a pm conversation can you reply when you can?
[OnePlus 8T Guides, News, & Discussion] BIGWORM:
Where is everyone finding the instructions to backup the modem and persist images? I'm wanting to do that before I flash to Global ROM.
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Why? You don't need to back up, there is no reason for it
[OnePlus 8T Guides, News, & Discussion] raven911:
So do we have any idea what causes this bug? If we eventually figure out how to MSM directly without bootloader unlock, would that fix this issue??
[OnePlus 8T Guides, News, & Discussion] craznazn:
I put that in just in case it had issues like the 8. You can definitely do it for peace of mind, just use dd from adb, you'll need a root shell, so you gotta root first.
[OnePlus 8T Guides, News, & Discussion] Smallsmx3:
Nope. Other than that info not being there I don't thing it causes any issues
[OnePlus 8T Guides, News, & Discussion] badpanda:
How come the about info is not there? Is this going to get fixed?
[OnePlus 8T Guides, News, & Discussion] awr128:
It doesn't cause any issues, it's just not aesthetically pleasing to look at, I wonder if it has to do with missing build.prop info?
[OnePlus 8T Guides, News, & Discussion] badpanda:
It's just funny and maybe odd something so simple like just the info doesn't work but everything complicated seems to.
[OnePlus 8T Guides, News, & Discussion] awr128:
It can be edited
[OnePlus 8T Guides, News, & Discussion] badpanda:
Not everything? Pictures and the other info?
[OnePlus 8T Guides, News, & Discussion] raven911:
Just wanted to confirm with anyone who's done this, after you converted and relocked the bootloader, does Widevine L1 still work? or are you back on Widevine L3? Thanks!!
[OnePlus 8T Guides, News, & Discussion] Sachi315:
Just download the official unlocked firmware from one plus, dump it with the windows or mac tool. Install manually, and then local upgrade using that same official .zip to fix any issues. That's what I did and I used canary magisk on both slots using the boot.img from that official image, no issues. If your phone DOESN'T work with fastbootd ie. *Waiting for device* then windows can't find the device driver and you must download and install the Google android usb drivers. Go to device manager, update driver and then have disk and manually install the Google driver to make it work
[OnePlus 8T Guides, News, & Discussion] badpanda:
And doesn't brake google play certification ? After conversion?
[OnePlus 8T Guides, News, & Discussion] Sachi315:
It shouldn't break certification. I did also install magisk and magisk hide so I can use google pay.
[OnePlus 8T Guides, News, & Discussion] badpanda:
But without magisk hide? Is it still certified?
[OnePlus 8T Guides, News, & Discussion] awr128:
I'm rooted and all my banking, credit card apps, finance apps, Google pay all work, the only app that doesn't work is Del Taco, haha
[OnePlus 8T Guides, News, & Discussion] Sachi315:
It should be I downloaded all my apps before I was rooted never told me otherwise. You aren't breaking functionality. You are just installing an official unlocked firmware. But you have to make sure both slots get the rom that's why I recommend fastboot flashing and then local upgrading using the same image. I have had a 7pro with every rom you can think of and it never broke certification
[OnePlus 8T Guides, News, & Discussion] raven911:
I (and maybe some others) have just been super cautious due to the experience with the OP6T. I did a conversion using MSM method, never unlocking the bootloader. Initially, the device stayed certified on Google Play, and passed Safetynet. However, once Android 10 was installed onto the OP6T, google play switched to uncertified and safetynet no longer passed. I know it might be possible to get it working again by unlocking the bootloader, and installing Magisk, but that would also wipe the phone and just doesn't seem to be worth it. So I'm stuck!
[OnePlus 8T Guides, News, & Discussion] Sachi315:
DO NOT do the MSM method that's why it broke. That changes the device Id, the reason this doesn't break it is that the model number is still kb007 and the bootloader is unchanged, just a different rom.
[OnePlus 8T Guides, News, & Discussion] raven911:
Interesting idea. I know starting with OP8, the MSM method doesn't work anymore because of additional verification checks that are done. I have not seen anyone on the OP6T use this bootloader unlock method to see if it maintains safetynet. But many people have had the issue with converted OP6T where the Android 10 upgrade caused them to lose certification and safetynet. I imagine most of them used the MSM method at the time because it was simpler and didn't require an unlocked bootloader. Sorry to go off topic!
[OnePlus 8T Guides, News, & Discussion] Sachi315:
You are all good. You should be fine will the this one with an unlocked bootloader. Give it a try if you don't like it you can always restore the tmobile rom back
[OnePlus 8T Guides, News, & Discussion] yijinsa:
Quick question before start .which version are best for t-mobile network ? Eu or global ? And what version is 8t us unlock running.thank you so much everyone
[OnePlus 8T Guides, News, & Discussion] Sachi315:
Use the official oneplus rom from the website it's the same Rom the originator of this forum posted and it's the global rom that's on the unlocked us models. Don't use EU that's for Europe that was the only choice until oneplus released the global rom. Here is the link to the official software upgrade site. But you have to extract the payload to use it.

Software Upgrade - OnePlus.com

Get the latest OxygenOS updates for your device.OxygenOS is always evolving. Learn about the latest features and improvements, and get even more out of your device.

www.oneplus.com
[OnePlus 8T Guides, News, & Discussion] SmileBigNow:
Global all the way
[OnePlus 8T Guides, News, & Discussion] Sachi315:
No I just checked it won't be certified unless you lock your bootloader again or use magisk hide. Bootloader unlocks trip certification now
[OnePlus 8T Guides, News, & Discussion] Sachi315:
Hey my dude I double checked I erased everything bricked my phone 😂 and revived it. Bootloader unlocks trip the Google play certification to be not certified so you have to use magisk hide or lock your bootloader again. If you lock again it should not be an issue as long as you use OTAs. But you also will lose any type of flashing capability. In my opinion if rather have all the tools unlocked and just magisk hide it's a simple mod and you don't lose the benefit of an unlocked bootloader.
[OnePlus 8T Guides, News, & Discussion] Lost Dog:
I suspect with the latest T-Mobile deal there's going to be a flood of questions so I may as well get mine in. I'm a 7T user who is playing with the idea of the trade in promo but I want to stay stock so a conversion would be necessary.

If I'm reading this correctly the TMo 8T can be converted to Global but it will need to be sim / boot loader unlocked and the MSM method should be avoided. Once the conversion is done if I'm not interested in rooting (to keep Widevine L1) I can relock the boot loader. At that point I'm totally stock, getting OP updates from them but my model number is kb007 (TMo variant).

Any drawbacks?
[OnePlus 8T Guides, News, & Discussion] Sachi315:
If you unlock bootloader and flash the global firmware and then relock to pass google certification. You will get OTAs from Oneplus themselves it doesn't matter that it's a T-Mobile device it's the same device as the unlocked oneplus the only difference is the tmobile one is IP rated and they changed the sim tray to not accept the dual tray for the unlocked model. I know because I tried lol my dual sim tray from my OP7 Pro does not fit. But the tray from my 8T fits into my OP7 Pro because they are exactly the same size.