yashsingh1/xdaforums huggingface dataset:
[OnePlus 8 Guides, News, & Discussion] ab2233:
Great thank you I appreciate your time
[OnePlus 8 Guides, News, & Discussion] free4flight:
I finally found time to root my Tmo OP 8 5g and now I want to move to the Global Rom. I have TWRP installed as well

as Magisk and rooted. This thread is somewhat all over the place due to various problems some have had. My question is this....

1 . Can I simply flash the Global Rom via TWRP or it must be through fastboot?

2. I have my modem backed up from TWRP, but also have an image that I got from one of the guys here. But it appears from various posts that some are not losing signal and others are getting it back by doing a local upgrade. But if they are losing signal how are they downloading the local upgrade. It seems to me if they don't have signal, they won't downloading any type of update.

3. OTG storage is not working in TWRP for some reason, anyone got a fix for that?

It would be great if someone would update the process for converting to global.

thanks
[OnePlus 8 Guides, News, & Discussion] Some_Ghost:
Just reboot to fastbootd (fastboot reboot fastboot) and run the flash all file from the global fastboot ROM folder. You can't flash them in TWRP right now and also you will need to flash twrp and reroot after converting. Make sure to back up persist like in original post before anything. So boot into TWRP and plug your phone into pc and run the commands to back it up. And you'll be fine :svetius:
[OnePlus 8 Guides, News, & Discussion] free4flight:
Mostly wondered if TWRP would work, not on the fastboot rom 10.5.7 but a newly released 10.5.9 not set up for fastboot, but fastboot it is. I will flash 10.5.7 and then either local upgrade the newest or allow download through Oxy updater. I also was able to back up persist. Thanks
[OnePlus 8 Guides, News, & Discussion] free4flight:
Ok, flashed, updated kept twrp and root... wifi works, no mobile data, won't turn on. I restored original modem via twrp, it said it was all good, but no mobile data, no signal. How can I restore the backed up modem another way?

edit: Well, no matter what I try, no modem restore fixes anything. Goin to try the Europe version and see if modem sticks with that one. Global is not working for me... unfortunately. :(
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
I went ahead and flashed Oxygen OS 11 right after I flashed the global 10.5.7 and everything worked for me, root and all. However, DRM was L3, Google Pay doesn't work and neither does Samsung Pay with my Galaxy Watch Active 2. Use Oxygen Updater in the Play Store.
[OnePlus 8 Guides, News, & Discussion] DZxda19:
Sorry if I don't know.

I don't know anything about DRM being L3 has an impact on the device and what cons there are. Could explain the consequences ?

So, you are saying that I should Download GLOBAL 10.5.7 same as the OOS version installed on my Oneplus 8 (which is T-Mobile's 10.5.7 version).

Only then I should flash to Global OOS A11 but it has risk that you mentioned ?

So you are saying that even going to A11, the issues are still there ?
[OnePlus 8 Guides, News, & Discussion] DZxda19:
Also, i am reading a alot about backing up presist.img and modem file. Is this necessary ? Did you also do it ? Is so I can't seem to find a concrete forum with the steps.

Also could you explain I go ahead and flash my mobile and then later on I run into issues and I don't have modem file. Does that mean I'll lose the ability to make call or will i lose my imei number ?
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
So L3 DRM basically means most streaming services, if they work at all on the device with an unlocked bootloader, will only stream at 480p quality max. It's pretty crappy.

So you'll want to download the fastboot rom for global Oxygen OS 11 (which are available on the first post in the thread) and then update the device with Oxygen Updater. It is recommended you backup both your persist and modem images, but you can only do so with root access.
[OnePlus 8 Guides, News, & Discussion] DZxda19:
Ok. I think I'll first backup my modem and presist.img file. I'll have to root first and this thread has instruction under "old instruction" tab.

Here's a catch. I am running A10 ~ 10.5.7 and the link doesn't have this version number patched image. Should i just download a 10.5.5 Global patched image on my TMO from this link posted in this thread ? I found this from here. Here's the video

Loom | Send a video. Not a thousand words.

Get your message across with instantly shareable videos for work. Capture your screen, record your front-facing camera, and narrate it all at once, then instantly share with a simple link.

www.loom.com

I am concern about version i have installed and the one available are different. And for me to backup I need root.

Or just tell me how did you backup after going to 10.5.7 by TMO MSM tool.
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
I haven't tried rooting the T-Mobile ROM, but if you want to give it a go manually. You'll need Lineage Recovery for ADB sideload, but I can work through it with you?
[OnePlus 8 Guides, News, & Discussion] DZxda19:
YES. I need your help. Although by flashing recovery image I am able to backup my EFS and Model files.

So now lets talk about converting to global.

First things, these servers are acting up and I am unable to download boot images to run /flash all.bat/ file. They get disconnected in between and the servers are very slow.

A. could you provide me the link. You can upload to your G-Drive.

B. Yesterday, I somehow managed to download 10.5.11 Global boot image on my linux machine. And transfer to USB and pasted it in my window machine to do all magic stuff. I ran into this problem. Any idea ?

C. At this point in time I have again MSM my phone so now it has relocked my bootloader. I can unlock it again. But I don't whats the root cause ?
[OnePlus 8 Guides, News, & Discussion] graycorgi:
Yes. I relocked and have Widevine L1 and Google Pay is working as well. Just don't relock until after you take the OTA for the global rom to upgrade to Android 11. If you try to relock right after flashing from Tmobile 10.5.7 to global 10.5.11, you may have problems.
[OnePlus 8 Guides, News, & Discussion] SilverZero:
Just to confirm: You were able to get root on 11.0.3.5.IN55CB and then you were able to convert to global, correct?

I'm getting prompted to update to that version and last time it forced an update I lost root so I'm hoping to not have to deal with that again.
[OnePlus 8 Guides, News, & Discussion] graycorgi:
Yes. I had to use a custom recovery that allowed me to install magisk. But I did not have to use a custom boot img. I did not have root before updating to that build though.
[OnePlus 8 Guides, News, & Discussion] awsan:
I tried using the fastboot rom but, the first time the phone just bricked and bootlooped into the bootloader, second time crash dump mode and the third time crash dump mode.

It switches to recovery mid flash and I leave it finish doing nothing but still the same issue.

Any ideas?
[OnePlus 8 Guides, News, & Discussion] awsan:
Hello, everyone any one alive xD?

So after couple of trial and erros everytime I flash a fastboot rom it flashes the first part and when it reboots for the rest it keeps telling me flashing is not allowed for critical partitions

Thanks
[OnePlus 8 Guides, News, & Discussion] awsan:
So an update, I was able to fix it with two things for people that might face the same issue in the future.

First of all for some reason the A11 fastboot rom wont work what ever I did, so your best shot is with the A10 fastboot rom.

To get it to flash probably do the following , boot the Phone and use in PowerShell/CMD type ADB reboot fastboot, yes it will reboot into recovery but fastboot commands will still work normally in there (Bootloader won't do it for new fastboot roms) [This will fix cant flash critical partition error] {So if you crash you need to start from point blank with an MSMtool restore}

Then download these platform tools for ADB https://dl.google.com/android/repository/platform-tools_r31.0.2-windows.zip

And what I did is copy paste the files inside on the files in the fastboot replacing the ADB that was present in side the fastboot rom

Install Oneplus drivers with Windows driver signature turned off + using an original cable + trying multiple USB slots on your computer.

In my case Fingerprint worked normally+modem worked normally (Small issue with dual sim that will discuss under) so It was not necessary for me to restore persist.img or T-mobiles modem.

So the only issue I am facing right now is A CDMA2000 Sim card wont work with A GSM sim card at the same time for some reason, Although both will work in both slots normally if they are inserted separately.

This might not be the best way to get things done, but nothing in this thread worked for me until I did what I did.

One more thing that is not supposed to do anything but I did is using the flash_all.bat that was used in the A11 rom on the A10 rom although I remember they both had the same lines.
[OnePlus 8 Guides, News, & Discussion] seriousfish:
hey, folks!

been awhile since my last post (2013 i believe) now I'm just revisiting my favorite site to convert my T-Mobile Op8 to global ROM.

i cant remember when i last tinkered around with flashing and stuff, but i had to, the T-Mobile glaring pink bootscreen is annoying and mainly i just need to get the global ROM for faster support etc. (you know why)

anyways, ive managed to flash successfully on my first try (pure luck). I was on the latest A11 updates, i wont get into details but here are the simplified steps:

MSM to TMO 10.5.7

Unlock bootloader (you'll need the key 'duh)

Flash to 10.5.7 international ROM using flash-all command

Reset to factory settings

Update OTA to the latest (updated to A11 latest stable build)

Relock bootloader

Profit

Note: After flashing the international ROM, my phone couldnt get any internet access (calls are still possible). But this can be fixed by deleting all the APN, and then reset the APN settings to default and leave it for a while, it will connect eventually.

I'm not interested in rooting and I know what i can get with it, my circumstances had changed and then some, i just need my device to work and thats why its not rooted and my bootloader was re-locked.

Happy flashing, cheers
[OnePlus 8 Guides, News, & Discussion] awerqw22:
Ive been trying to unlock my Op8 Tmobile and the unlock token is taking too long for my device. its been a week now since i requested it from tmobile op unlock token website. My device is already network unlocked.

Is unlocking the bootloader required when flashing global rom or i could just msm my way through?
[OnePlus 8 Guides, News, & Discussion] awerqw22:
How long did it take for your Unlock token?
[OnePlus 8 Guides, News, & Discussion] seriousfish:
It took approx. 1 week and 2 hours.

Unlocked bootloader is needed for running flashboot command. MSM is only for TMO ROM.
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
I have one question regarding unlocking the bootloader, I have a device with a modified IMEI and Serial number but I still have its original IMEI number as well, can I request the bootloader unlock using the original IMEI and Serial and will that work on the handset even though the information (IMEI and Serial) is currently changed?
[OnePlus 8 Guides, News, & Discussion] optimumpro:
Could a custom rom be installed on bootloader unlocked Oneplus 8 T-Mobile version? If yes, what's the point of converting?
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
Some people would rather keep Oxygen OS, so it's still an option for them. Plus I think you can recieve more timely updates through Oxygen Updater or something and can participate in Open Beta's.
[OnePlus 8 Guides, News, & Discussion] awerqw22:
Out of curiosity, may i know how you changed your imei and serial number?
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
It was already changed when I got the device as it was bought used as a secondary phone. IMEI at the back glass and in OS (*#06#) doesn't match so I was curious if it's ok to unlock the bootloader and convert without facing any issues. I guess no one has an answer?
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
To be honest, I really have no clue. I would get all of the tools needed to recover the device first, learn the process, and then try to unlock the bootloader. Therefore, you don't panic if the device does go into crashdump mode and know how to fix it immediately. I don't see why there would be an issue, but just make sure you use the IMEI number from the system and not the back of the phone when requesting an unlock token from OnePlus.
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
Well, these are some nice suggestions but regarding IMEI, the one in the system will never be accepted by T-Mobile as that doesn't belong to their device or would be present in their database therefore had to request using the actual IMEI which was mentioned on the back of the phone. Now waiting for the Unlock token and also gathering important information before bitting the bullet :)
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
Ah. Well, fingers crossed. Did you already perform a SIM unlock?
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
Yes it's already SIM unlocked
[OnePlus 8 Guides, News, & Discussion] L0ND0NB0Y:
did the unlock_token they gave you flash on the phone?

Cuz I had to restore my imei after losing it and I cant flash the unlock_token ive used before losing imei as it says "Verify error (3 -2)" or sth like that.
[OnePlus 8 Guides, News, & Discussion] L0ND0NB0Y:
Ugh, if only the devs can work on a way to mod the MSM tool to be able to flash global bootloader on tmo, I've been able to write the global bootloader on my tmo OP8 it flashed successfully but I'm not able to boot into the phone to enable OEM in developer options as the phone reboots to fastboot only.

I made progress on this but there's no one to share ideas with me so I'm stalled. I wish there was some help from the devs who made it possible on the 7 Pro and the 8T.
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
I have finally received the Unlock token yesterday but I won't be playing with it until weekend because this phone is my daily driver so don't want to mess it up during working days. Will post an update once done with the procedure.
[OnePlus 8 Guides, News, & Discussion] L0ND0NB0Y:
Ah ok I understand, good luck with that!
[OnePlus 8 Guides, News, & Discussion] L0ND0NB0Y:
Well...no one actually trying to convert to global without SIM unlock?!! I need help @matteosaeed I successfully edited the global MSM .ops rom to make it flash on my tmo OP8 after days of no sleep and XML editing :)

But the phone is stuck now on EDL and can't boot into system or fastboot at all. I wonder what caused this as it flashed every partition to its correct sector. I can MSM back to stock so not a problem but I need help now from an experienced dev cuz I'm soo close to a working solution. I can't SIM unlock and there must be others like me who can't, so if anyone has the knowledge PM me and I'll fill you in with the details.
[OnePlus 8 Guides, News, & Discussion] pipatap:
I have done MSM 10.5.7 with flashall to 10.5.11, and MSM 10.5.22 with flashall to 10.5.12. It's always the same issue - reboot to fastboot and stuck there, the bat window just stuck at <waiting for any device>.

Anyone has a solution to this?
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
Why not just follow below simple instructions shared on previous page as well:

MSM to TMO 10.5.7

Unlock bootloader (you'll need the key 'duh)

Flash to 10.5.7 international ROM using flash-all command

Reset to factory settings

Update OTA to the latest (updated to A11 latest stable build)

Relock bootloader

Profit
[OnePlus 8 Guides, News, & Discussion] pipatap:
Thanks for the suggestion. I proceeded with the versions and stuck at the same place still. I saw on Youtube that the bat window continues when the phone is rebooted to the select language page. However, the bat window in my case keeps showing < waiting for any device >.
[OnePlus 8 Guides, News, & Discussion] pipatap:
How exactly did you do the windows update for drivers during the flash?
[OnePlus 8 Guides, News, & Discussion] graycorgi:
I had to start over once I got the driver installed cause I closed the batch, not sure if it would have eventually worked if I didn't do that. But when it got to the part where it was not seeing the phone, I went to Windows Update, Check for Updates, and the driver for the phone showed up under Optional Updates.
[OnePlus 8 Guides, News, & Discussion] pipatap:
Thanks, I will try it tonight. May luck be with me.
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
Finally I was able to convert mine to International :) really happy as it took me just one try for the whole process without any fail. I was a bit afraid initially with some doubts because my phone's IMEI is modified so had no idea that what would happen after trying to unlock the bootloader but luckily everything went well.

1. Was on TMO Android 11 with Aug patch, unlocked bootloader and rooted my device using one of the thread posted in this section by flashing crDroid recovery and Magisk

2. Backed up Persist image, crDroid recovery doesn't support/provide Backup option for partitions hence had to leave the modem backup at this point

3. MSMed to 10.5.7 TMO

4. Unlocked bootloader again using key

5. booted to one of the TWRP recovery provided in the first post to backup Modem, EFS etc.

6. Flashed Global 10.5.7 using "Flash-All" method via fastboot

7. Everything is working at this point, my IMEI, SIM unlock and Fingerprint sensor all are intact, network is also working great

8. Now downloading the full package of A11 via OTA and planning to fully update the phone before wiping it once more and later relocking the bootloader.

This whole process including backing up my data etc. took good 3-4 hours but it totally worths it to get rid of TMO crap.

Wishing luck to others who are facing issues or still in process of converting their phones.
[OnePlus 8 Guides, News, & Discussion] L0ND0NB0Y:
Happy for you man!! and you did the right thing taking a backup of everything. I too wish an unlocking method would unveil soon for ppl who can't unlock SIM.
[OnePlus 8 Guides, News, & Discussion] pipatap:
There was a long list from Optional Updates. I chose the ones from Google and Qualcomm. It didn't work.

So, I tried again. The second time, I went to Device Manager and update the driver for the "unknown" device. Then, pointed the update to the folder of the Android SDK Platform Tool that I had downloaded before. Now, I have my phone with the Global version woo hoo. Thank you very much.
[OnePlus 8 Guides, News, & Discussion] krosemm:
Hi - Step #4 (Reset to factory settings) how did you go about doing that? Just a factory reset via phone setting? Thanks
[OnePlus 8 Guides, News, & Discussion] seriousfish:
Just via the phone settings
[OnePlus 8 Guides, News, & Discussion] JohnMcW:
**Nevermind** I see that oneplus wants you to get a special unlock file from them for each phone.

**old question**

Hi, quick question, a point of confusion from this post, FYI I have unlocked and flashed and developed for phones so this shouldn't be confusing to me..lol

step 2 says Unlock Bootloader (you'll need the key 'duh) ??? why do you need a key? unlocking the bootloader is a fastboot command fastboot oem unlock. No key should be involved. Does this process somehow lock the phone back to the carrier?
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
Key is required for branded phones, you must be aware that this thread is meant to help convert TMO version of OnePlus 8 to International therefore it's necessary to obtain the unlock token from them to unlock the bootloader.
[OnePlus 8 Guides, News, & Discussion] JohnMcW:
Thanks, the code needs to be gotten from OnePlus, or T-Mobile?...I haven't had a network locked phone for a long time, but I am getting this one network unlocked from T-Mobile... I am hoping the code can be retrieved from oneplus.
[OnePlus 8 Guides, News, & Discussion] seriousfish:
If your op8 is still carrier locked, you'll need an active TMO sim inserted and request for carrier unlock (also depends on your current package/balance payment with TMO) which allows you to use your phone with any telco. You can look it up with a quick google search.

Next, you'll need to request the unlock code from oneplus specifically for TMO device. This code is used to unlock the bootloader. Took about a week to receive it.
[OnePlus 8 Guides, News, & Discussion] kemroyh@gmail.com:
how do i root by installing magisk after this process... i did it successfully and my bootloader is still unlocked and im on the latest ota...
[OnePlus 8 Guides, News, & Discussion] e20140:
Happy for U. I am new to Oneplus and MSM, but got questions:

1. Is dual SIM working? Assuming your IMEI didn't change as you said intact. In theory, it should not as it can't pull a new IMEI from thin air.

2. Does MSM has the ability to pick and choose partition to write? If it does, can't we simply flash all except modem.
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
1. I haven't tried dual SIM yet even though I did purchase a dual SIM tray. For IMEI part, 2nd IMEI has been added automatically, it's basically the same IMEI but with an addition of digit "1" making it different/unique so my guess is that dual SIM should work just fine.

2. Didn't try anything related to partition in MSM tool.
[OnePlus 8 Guides, News, & Discussion] e20140:
Adding an extra digit very likely will not work, at least here in the US. Still interested when you try dual SIM. Let us know. Thanks
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
does your second sim pick signal? im on eu rom mine doesnt
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
how do you flash this modem..can you please tell the commands when i do it it just wipes my imei ... do i need to enter fastboot td?
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
how did you get the second sim working...mine shows no signal...i msm back to 10.5.7 then flashed eu rom 10.5.9 and upgraded via ota to 11.0.8.8 eu rom... my second is detected but shows no signal on OP8 please help
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
how did you get dual sim working?

my second sim is recognized but doesnt pick signal..i followed this procedure

i msm back to 10.5.7 then flash euro 10.5.9 and take ota to euro OOS 11.0.8.8 and lock bootloader and wipe
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
do you have dual sim working ? my second sim shows no signal but it gets detected
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
my second sim2 doesnt pick signal no matter what sim i put in same sim picks signal when placed as sim 1 ...sim2 gets detected though...i did msm10.5.7 then flashed eu rom 10.5.9 then took ota to 11.0.8.8 and locked bootloader and wiped... can you help please?
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
same issue here did u find any fix
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
how did u get the dual sim working ... i didnt get it to work even for once ...sim 1 works fine connects to data but sim 2 is recognized but doesnt connect to data . ...i msm back 10.5.7 then flashed eu rom 10.5.9 eu rom and then took ota to eu OOS 11.0.8.8 .. locked bootloader and wiped
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
does your dual sim work? do both sim pick signal?
[OnePlus 8 Guides, News, & Discussion] optimumpro:
Dual sims won't work on T-Mobile USA, even if converted. You have to wait for a modified MSM, which skips device verification, so that you can flash Global rom straight. There is one already for 8T.
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
some guy converted to eu version and got dual sim working ... i was wondering if that will work... he msm back to 10.5.7 tmo then flashed eu 10.5.9 then took ota to 11.0.8.8
[OnePlus 8 Guides, News, & Discussion] optimumpro:
I doubt it, but you can try. I don't think he ever showed 2 sims both with active signal. The most you can get is showing both sims, but signal for one only.