yashsingh1/xdaforums huggingface dataset:
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
lemme share screenshits

he sent these screenshots
[OnePlus 8 Guides, News, & Discussion] optimumpro:
Then do it.
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
i did but funny thing is i cant get sim 2 pick signal some people can some cannot..i cant seem to figure it out
[OnePlus 8 Guides, News, & Discussion] optimumpro:
I got rid of my T-Mobile Oneplus 8 and replaced it with IN2015.
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
im thinking of the same
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
awesome guide bro...can you provide a fix for dual sim? mamy people are reporting that sim 2 doesnt pick signal
[OnePlus 8 Guides, News, & Discussion] d.tat:
removed
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
Hi, I'm new to all this so I need some help and clarification.

Does backing up "Modem" means backing up "EFS"?

EFS and Persist both can be backed up by using TWRP, right?

Also, do I need to root my device after unlocking the bootloader? And what if I don't want root after converting successfully to Global?

I will be using TOOL ALL IN ONE to Unlock the Bootloader and then rooting (if it's needed).

Device is OnePlus 8 IN2017 currently on 11.0.4.6.IN55CB. Do I need to downgrade from this for conversion to work?

Also, currently I'm not using T Mobile SIM but a Telenor SIM in Pakistan. So, if conversion happens successfully, will I still be able to use my Telenor SIM or the conversion will cause any issue?

Thanks in advance
[OnePlus 8 Guides, News, & Discussion] mehdijoey:
I have the same problem, the second sim signal is down. Mine is IN2017
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
Thanks mate. I was gonna peform the conversion next week but I will wait till A12 comes for OP 8 TMO. Any info if A12 on TMO will be different than the one on OP 9? Like not ColorOS but OOS. If OnePlus and TMO work to give stock OOS feels on TMO variants, then I'll stay at TMO. Else, don't have a choice.
[OnePlus 8 Guides, News, & Discussion] aviator.OO7:
Im thinking of getting the imei of sim 2 changed... Lets see if this works
[OnePlus 8 Guides, News, & Discussion] mehdijoey:
Try and tell us
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
So, finally converted my OP8 TMO to EU. Everything working fine. Backed up my Modem, EFS and Persist too. Although, everything is intact. Big thanks to @lethalfriend for giving me confidence to perform the conversion and helping me in the conversion. Steps followed:

1. MSMed to 10.5.7 TMO

2. Backed up Modem, EFS, Persist etc from TWRP

3. Flashed Fastboot ROM 10.5.7 EU (wasn't getting any signal here but my SIM was being recognised)

4. Updated to latest A11 via OTA (everything working fine)

Again, thanks to @lethalfriend
[OnePlus 8 Guides, News, & Discussion] lethalfriend:
Enjoy my friend :)
[OnePlus 8 Guides, News, & Discussion] mehdijoey:
For me too. All the steps were ok like you discribe. Excepte dual sim that are not working
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
For me, it is showing a new IMEI. Although, it is highly unlikely that I will use that new IMEI
[OnePlus 8 Guides, News, & Discussion] themoveforward:
It just won't work. I've done all of the above, and even had IMEI2 changed. Still could never get the second SIM slot to activate and would just show no signal.
[OnePlus 8 Guides, News, & Discussion] farhansaeeddnp3021:
there is no issue. you can use Telenor sim. first downgrade to andriod 10. same version of tmobile rom and then download same version of globel andriod then and flash it. I am from Pakistan and successfully covert it to globel.
[OnePlus 8 Guides, News, & Discussion] newellj79:
I've read the entire thread. I can't seem to find a solid answer on if 5G still works after the conversion. I'm currently on the tmobile network, android 11, thinking I want to do this.
[OnePlus 8 Guides, News, & Discussion] kolt54321:
Looks like chances are dicey. New here - have my OP8 on A10 but SIM card (T-Mobile) is coming next week. Can anyone affirm if A11 is forced, requiring you to flash to global like the above to keep it on A10?
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
Keep it on A10 since TMO MSMTool is available for A10 (10.5.6 if I'm correct) not A11. I myself had to downgrade from TMO A11 to TMO A10 using MSM and then to EU or Global.
[OnePlus 8 Guides, News, & Discussion] newellj79:
Yes, I retained 5G. Thanks for the guide!
[OnePlus 8 Guides, News, & Discussion] Evender99:
Hi, my device is OP8 tmo I'm currently on custom A12 rom can i switch back to global a11 or do i need to downgrade to tmo a10 and only switch to global?
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
how to done
[OnePlus 8 Guides, News, & Discussion] lukhach0:
Hi, i'm newbie here, what happen when i successful convert my tmo ver to global and then click on OTA update. It going back to tmo or get global update. Thank
[OnePlus 8 Guides, News, & Discussion] newellj79:
Global.
[OnePlus 8 Guides, News, & Discussion] lukhach0:
Good to hear that. Thank you
[OnePlus 8 Guides, News, & Discussion] poisson_pmf:
Hello Community,

New to the world of hacking mobile devices, so any help or direction is appreciated.

The step by step directions are clear. But I want to bypass the MSM tool, because I do not have easy access to a Windows computer (am a Linux shop, with Macs on the side). My TMO devise is current with A11 December patch.

So, if I fastboot flush a global ROM

1) with an earlier version A11, say OOS 15.0.30, from Oct 2020

or

2) with the most recent A11 (OOS 15.0.40?)

what are my chances of succeeding?
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
You need to downgrade to TMO OOS 10 to convert via MSM since MSM Tool is available for OOS 10
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
Check Post #657. Those are the steps that I followed and was successful.
[OnePlus 8 Guides, News, & Discussion] poisson_pmf:
Thanks BK.

Yes the same steps in #657 is also described, in different words, in #577 and #593. So I take it that it is the tested and proven method to go with.

But that requires the use of MSM tool, which is Windows only. It is a problem to me as I do not have Windows machine, so I want to skip that part. That means flushing Global rom directly on top latest version Tmo phone.

The question I guess is if the MSM tool is doing some special preparation in addition to downgrading to A10. Or if A10 Tmo rom allows flushing whereas A11 does not.
[OnePlus 8 Guides, News, & Discussion] Bowery_King:
If TMO allows downgrading to A10 then go ahead with it as MSM is just a tool to unbrick the phone. As far as I know, users cannot flash ROMs in TMO as it doesn't have the option of Local Update that is available in Global/EU OOS.
[OnePlus 8 Guides, News, & Discussion] poisson_pmf:
I am going to answer my own question.

Turns out that you cannot fastboot flash an OP8-TMO if it is on Android 11. Fastboot gave me 'critical partition not unlocked' error for almost all img files I attempted to flash. I suspect A11 changed the file system structure substantially.

So I bit the bullet and MSM'ed to 10.5.7 TMO rom, then flashed 10.5.7 global successfully ending in 'Profit', as one post in this thread elegantly stated. next, I OTA'ed to latest A11 without any problems. All seems to be working fine, including a bonus 2nd sim device.

Hope this helps someone save some time and energy.
[OnePlus 8 Guides, News, & Discussion] poisson_pmf:
That is the way, if you want to end up in profit 👾.

I attempted to bypass MSM and fastboot-flash an OP8-Tmo in A11 starting in step 3. It failed, complaining that critical partition is locked. Bit the bullet, started from Step 1 above and success (and profit!) I think A11 is the culprit here, if my Tmo had been on A10, shortcut might have worked.

Cheers
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
What's BRANDED and NON-BRANDED PHONE.

How to find out my Phone is Branded and NON-BRANDED
[OnePlus 8 Guides, News, & Discussion] jasonring:
My goal is to convert TMO version to unlocked USA version. Is it possible?
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
There isn't specifically a USA version, but the global version is the one you want if you aren't in Europe or India. But it is possible!
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
I want to know that the PERSIST.img file is extract after unlock the Bootloader and Rooting the device?
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
Yeah, you extract that after unlocking and rooting. Do you need help extracting it?
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
Am afraid 😳 to doing. I have Bin file but afraid that something wrongly done
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
Will you help me.?
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
First is Bootloader unlock.

THEN.. root and get PERSIST.img file via info
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
Yes, that's correct. And you have the unlock.bin file to unlock the bootloader?
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
Yess I've it
[OnePlus 8 Guides, News, & Discussion] Ali Raza 1121:
It's ok to Download latest Rom 11.0.0?
[OnePlus 8 Guides, News, & Discussion] k9r4n16:
Latest Global 11? That's fine, yea.
[OnePlus 8 Guides, News, & Discussion] jasonring:
I learned that tmo rom support 5G SA mode.

Does the Global rom support 5G SA mode too? (I use T-mobile MVNO, tello)

What is the differences in between 5G SA and 5G NSA on battery performance and network speed?
[OnePlus 8 Guides, News, & Discussion] zulisjutt:
How the second sim work please explain
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
I had to do a clean install and used MSM tool Oxygen OS 10.5.22 IN55CB. Everytime i try to flash global it just would not read sim card on international rom and every so often like 10 minutes, the device would reboot itself. I have tried oos 10.5.7 fastboot and above and none seems to work. i have tried the 10.5.2 and they wont allow critical partitions. both eu and global. anyone know how to fix this?

much thanks
[OnePlus 8 Guides, News, & Discussion] zulisjutt:
Please follow the video guide it helped me alote
[OnePlus 8 Guides, News, & Discussion] blair.sadewitz:
That's odd--I used your guide to flash mine, and it worked perfectly lol.

I've done it several times. Last time, I think I used 10.5.7 TMobile (?), then 10.something via fastboot, then I upgraded using the ROM's updater to newest international. Works flawlessly.
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
funny thing is i watched this before commenting and also didnt work
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
nice, glad it works on yours. my purpose was to flash a custom rom but now i figured it out. i just update the latest tmobile then just used payload dumper. first time i tried doing this on tmobile rom and had errors but i guess 2nd times the charm?
[OnePlus 8 Guides, News, & Discussion] blair.sadewitz:
I recommend using global firmware. If you simply wanted to flash a custom ROM, all of this craziness is unnecessary. You may simply flash global firmware with fastboot.
[OnePlus 8 Guides, News, & Discussion] blair.sadewitz:
You said that you had problems with a custom ROM at first. I did too, so I'm curious as to the specifics. It seemed like the phone was quite unhappy being an instantnoodlet when the ROM was for instantnoodle.

Is that what ur talking about?
[OnePlus 8 Guides, News, & Discussion] blair.sadewitz:
Me too. The phone crashdumped IIRC.
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
see thats the problem, when i did, i lose sim functionality and would say no sim card installed. so i just update to the latest tmobile firmware and just use payload dumper and rominstaller.bat or install a custom recovery
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
no my problem was installing the custom rom and it says "target for onepolus 8 but specifically for instantnoodle" on custom recovery but i fixed it using payload dumper and rominstaller.bat
[OnePlus 8 Guides, News, & Discussion] Evender99:
Dude obviously yes. Thats why you're in this thread
[OnePlus 8 Guides, News, & Discussion] kartheeksrm:
I see people reporting 2nd sim not picking up the signal. Has there been a fix yet for this?
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
there will never be a fix until someone makes the modified msm tool
[OnePlus 8 Guides, News, & Discussion] Scout12345:
I just asked a few questions about your method on other thread, and then saw your subsequent posts in that thread. You originally indicated that you flashed Global and then flashed EU locally (in order to be able to then re-lock the bootloader I believe). Later you said you flashed Global, then ran OTA updates, but didn't mention installing the EU version at the end in order to re-lock. Can you clarify that also? Thanks for your help!
[OnePlus 8 Guides, News, & Discussion] FoxyDrew:
You don't need to flash EU version to lock the bootloader. You can relock on global just fine
[OnePlus 8 Guides, News, & Discussion] umairkhalid415:
What things to be modified in msm tool to flash it on T-Mobile variant?

I have modified msm tool of eu and global to run it on T-Mobile variant and flashed successfully without param preload error or any other error but it doesn't boot just directly goes to the fastboot no crashdump error nothing.
[OnePlus 8 Guides, News, & Discussion] umairkhalid415:
If anyone wants to contribute to the work it will be very appreciated.

And one more thing we can lock bootloader even on android 10 global.

Downgrade to android 10 TMO using msm .

Install global android 10 fastboot rom.

Then reboot to fastboot/bootloader

Fastboot flash vbmeta vbmeta.img

Fastboot flash vbmeta_system vbmeta_system.img

Now relock bootloader no crashdump no error
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
yoooooooooooo nice

-make a thread to get more ppl to see it and that would help u in the future
[OnePlus 8 Guides, News, & Discussion] umairkhalid415:
Do you have any knowledge regarding partitions ? I have a speculation that after successfully installing global firmware through modified msm may be AVB (android varified boot) is the issue that doesn't let it boot.
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
sorry man i dont. i am still in the process of learning stuff in the android community
[OnePlus 8 Guides, News, & Discussion] Moaz Adel:
Is this for dual sim or to lock bootloader?
[OnePlus 8 Guides, News, & Discussion] FoxyDrew:
Neither
[OnePlus 8 Guides, News, & Discussion] febo77:
Where i get vbmeta.img?
[OnePlus 8 Guides, News, & Discussion] Taimur1477:
Umair bro does your method enables dual sim?

If doesn't then everybody knows how to rebrand without error.

1. Unlock bootloader

2. Msm TMobile android 10.5.7

3. Flash global android 10.5.7

4. Update to latest then relock bootloader

These steps works fine on TMobile op8 in2017 without any error.

Just dual sim doesn't work, only single sim works
[OnePlus 8 Guides, News, & Discussion] dlhxr:
Hey, I am interested in this. See Verizon variant can use dual sims after unlock. Do you have any updates on modified msm tool?

https://xdaforums.com/t/guide-unlock-verizon-oneplus-8-5g-uw-in2019-bootloader.4409377/post-86586019
[OnePlus 8 Guides, News, & Discussion] gottamakehermine:
I'm also interested in this, have unlocked bootloader Verizon model.
[OnePlus 8 Guides, News, & Discussion] clisays:
Can my verizon customized version swipe modem.img to fix the missing signal problem? I can unlock it and browse the global and European versions, but there is no signal.
[OnePlus 8 Guides, News, & Discussion] Devar Bl3nd:
Can i Relock bootloader then update lastest OOS?
[OnePlus 8 Guides, News, & Discussion] Mostafahemad:
Hi guys , l'm in a big problem l tried to convert my oneplus 8 t.moblie to global firmware but l was in android 11 before conversion now my device not have recovery or system and not enter edl to flash with msm the device only open in fastboot l tried to enter edl mode by all methods ut it failed as l installed all drivers

Note: l could flaah t.mobile by msm since a week but now after this problem l can't find any way !
[OnePlus 8 Guides, News, & Discussion] BigHooper:
I’m a noob here can someone please clarify this to me

If I have the Oneplus 8T and it is locked to T-Mobile if I try this to downgrade to A10 and convert to global / EU will the sim network be unlocked to use with ANY SIM card in ANY country afterwards if it was originally locked to begin with?

I know some will say I have to get it unlocked first but they’re ways to unlock the boot loader without having it unlocked I just want to know if it will turn the status from locked to unlock since I’ll be on the global / EU rom not T-Mobiles
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
No, it would be a different rom but locked sim, different rom but only tmobile sim will work
[OnePlus 8 Guides, News, & Discussion] Mostafahemad:
I converted op 8 t.mobile to eu version but after updating to f.62 sim 2 read but no signal or service , any solution ?
[OnePlus 8 Guides, News, & Discussion] sahir1993:
I was wondering if this method works on verizon oneplus 8?

I'm from Pakistan, i hv imei patched (replaced with other device to even get signals) will this method removes all of that?
[OnePlus 8 Guides, News, & Discussion] tello999:
does it work on oneplus 8 5g verizon too?
[OnePlus 8 Guides, News, & Discussion] magi44ken:
Can you explain the steps you take to convert from T-Mobile to using custom rom? Sound like it a different process. Thanks.
[OnePlus 8 Guides, News, & Discussion] magi44ken:
Can you explain in an outline what you did to get to convert and flash custom rom without issue? Specially where to get the payload dumper and rominstaller.bat and how to use it?

I'm planning to invest my op8 to use custom rom. I'm still waiting for my bootloader unlock code from OnePlus. Its been a week pass.

Thanks
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
My guide step by step: https://xdaforums.com/t/guide-compl...t-mobile-to-global-or-other-firmware.4345305/

Payload dumper extracts the ROM's files, I put the extracted files on rominstaller.bat's directory and ran rominstaller.bat. It automatically installs the custom from with one click using an CMD/Powershell and it's own coded algorithm. I recommend anyone to use rominstaller.bat method to install custom ROMS instead of manually doing it through lineage recovery.

Although, I don't know if it still works since that was last year and I don't have my OnePlus anymore. Also look into OrangeFox Recovery, it's what Xiaomi vastly uses and someone made a port about it last year that I didn't get to try and plenty of tutorials of it on Youtube.

Payload Dumper and rominstaller.bat can be found on Youtube or Telegram. Ciao.
[OnePlus 8 Guides, News, & Discussion] rodken:
+1
[OnePlus 8 Guides, News, & Discussion] magi44ken:
Great. I will see if I can find those two files.

I have read your guide and the whole thread.

The basic steps are:

1. Unlock sim and bootloader

2. Flash TMobile Firmware 10.5.7 using MSM tool.

3. Unlock the bootloader and enable the dual sim

4. Flash EU firmware 10.5.9 OTA in fastboot.

5. Finally flash the global OTA firmware using OnePlus local update.

Is the EU firmware is a modified version or original?

The reason that we need to flash EU firmware is to prevent some sort modem issue, right?

From this guide: Driodwi.com, they need to modify some properties to match the phone model.

I ask this two questions because I was thinking to flash T-Mobile OOS 11 using MSM tool and unlock the bootloader and then flash global OOS 11 OTA.

By the way which do you have now?
[OnePlus 8 Guides, News, & Discussion] thattechguy_69:
Is the EU firmware is a modified version or original? EU is original/official, it's just region-specific- everything from OnePlus Store will be redirected to the Main EU websites- and I use EU because it's mostly known used one that never had issues converting so.

The reason that we need to flash EU firmware is to prevent some sort modem issue, right? Kinda, as far as I have experimented with the MSM Tool versions, I recommend the one I have linked on my guide as the previous version, MSM Tool OOS 10.5.7, causes Modem issues to me and may also be happening to other users. I believe I have the MSM Tool 10.5.22?

From this guide: Driodwi.com, they need to modify some properties to match the phone model. This is new information to me, I have no certain if this works or not but never hurts to try. Also his guide talks about converting on "Locked Bootloader" and I have been hearing on my thread that my guide doesn't work anymore to some users. So do try this guide and let us know.

I ask this two questions because I was thinking to flash T-Mobile OOS 11 using MSM tool and unlock the bootloader and then flash global OOS 11 OTA. NO! flashing from OOS 11 and converting using OOS 11 will not work! This is based from using flash-all/bat method of converting and as far as the last time I was using the device, converting from STOCK TMO OOS 11 to GLOBAL OOS 11 never works as the conversion stops midway.

By the way which do you have now? Current Proud owner of a Pixel 7 128GB STOCK, not planning on modding as of now. That's really the main reason why I have been in and out of XDA and Telegram for the past half year.
[OnePlus 8 Guides, News, & Discussion] magi44ken:
I believe I have the MSM Tool 10.5.22?

Yes the link for the TMO MSM is 10.5.22. And the EU Flashable ROM is 10.5.9.

In the last part to flash a full OTA ROM of any region, can I flash OOS 11 or I have to flash OOS 10 OTA to match the same Android version?

Which guide did you use to install TWRP? I wanted to do a backup of persist and modem/efs image files.

I use to have the Pixel 2 XL. It was a great phone. Not much bloatware and bootloader can be unlock.

The Pixel 7 is a great phone. My friend have it and he love it. Everything just work, no worry about bloatware or slow downs.

Not sure if you know this. Be warn!! If you RMA to replace your phone, Google will give a new phone where the bootloader cannot be unlock. And there is anything they can do. Unless you want to file a suit. I have a friend who did a RMA replacement and was not able to unlock bootloader anymore.

Thanks for all your help.

Which state you from? I'm from CA here.