Database Users

Unbranding h910 AT&T

Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.

AWT86 said:
Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
Click to expand...
Click to collapse
First off, if its not sim unlocked phone, it will forever stay sim locked unless you get the network unlock for it. EVEN if you flash any of the other brand roms. Also, AT&T doesn't have the full stock kdz to revert to, there are work arounds to return to stock. This phone has trouble with the screen ghosting/retention, as well as bonkers HDR camera performance, also not to forget, GPS inaccuracy upto 50 meters. I'd suggest look away from LG unless you're going for LG v30 which doesn't carry any of these issues.
If you have already bought, paid and "expecting" shipment anytime soon, you should make sure that its network unlocked H910. (make backup of your partitions before flashing any other brand rom because you will need modem, modemst1, modemst2 and misc partitions in-case you lose the signals). Then you can easily flash it with H915 rom which is the best among debloated stock roms. Flash H910 v10m firmware over it, then flash the modem/modemst1/modemst2/misc files from fastboot to get network signal. From there on forward, you may keep H915 rom with H910 v10m base, or you can even move on to lineage roms. I'd suggest stay rooted with manual color calibration for no-ghosting measures.

AWT86 said:
Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
Click to expand...
Click to collapse
You can't flash another variant rom until you unlock the bootloader and root. As far as functionality with the 996 will depend on the bands your carrier supports
Sent from my LG-H910 using XDA Labs

I received my used AT&T V20 yesterday also bought from eBay. I'm on O2 and it works fine. Just be sure your phone is network unlocked. Only thing is the bloatware.

So much misinformation in this thread, but I will just address the original question....
Yes, you can flash the US996 KDZ without rooting .. just flash like you would any other KDZ. You lose some AT&T specific features while running US996, but if you are overseas, I don't think that will bother you.
As far as I know, that will SIM unlock the phone if it is locked. If it doesn't, then the engineering bootloader that you use to root will SIM unlock the phone as well as bootloader unlock it.
So, first try the US996 KDZ, if that doesn't SIM unlock, you will have to root.
-- Brian

CaseyS said:
I received my used AT&T V20 yesterday also bought from eBay. I'm on O2 and it works fine. Just be sure your phone is network unlocked. Only thing is the bloatware.
Click to expand...
Click to collapse
Did you get any system updates?

runningnak3d said:
So much misinformation in this thread, but I will just address the original question....
Yes, you can flash the US996 KDZ without rooting .. just flash like you would any other KDZ. You lose some AT&T specific features while running US996, but if you are overseas, I don't think that will bother you.
As far as I know, that will SIM unlock the phone if it is locked. If it doesn't, then the engineering bootloader that you use to root will SIM unlock the phone as well as bootloader unlock it.
So, first try the US996 KDZ, if that doesn't SIM unlock, you will have to root.
-- Brian
Click to expand...
Click to collapse
The phone should come pre-unlocked for all networks. I'm mainly concerned about system updates. US996 sounds good, as I can't use AT&T here (AT&T doesn't exist in my country). Would I be able to update the firmware in any way once US996 KDZ is installed? Thanks in advance.

AWT86 said:
Did you get any system updates?
Click to expand...
Click to collapse
No system updates. Had the latest update with the latest security patch, but I downgraded because I want to root it. Still 7.0, but with a earlier patch level.

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.

Which model is the easiest bootloader unlock and candidate for Lineage OS?

I've seen the US996 official unlock, but I want to know if anyone of these are preferable since they are easiest to find second-hand:
T-Mobile
AT&T
Verizon
Thanks in advance.

Gorilla Daddy said:
I've seen the US996 official unlock, but I want to know if anyone of these are preferable since they are easiest to find second-hand:
T-Mobile
AT&T
Verizon
Thanks in advance.
Click to expand...
Click to collapse
T-mobile process (technical version and skips some details). Same process, but reworded and simplified (and includes ALL the details).
T-mobile (and the factory unlocked US996) let's you actually unlock the bootloader so it takes a bit less time to boot (the other models sit longer at a bootloader locked warning, but they use an engineering bootloader that eventually continues booting)
The ATT is a pain to root too, because there are no firmware files available for it thanks to ATT deciding to use a different OTA format. It's process involves crossflashing then flashing back some att firmware.
(you didn't ask but) Sprint's is unrootable. (if it's taken an OTA anytime in the past 2.5 YEARS or so, so basically 95% of them) (thank Sprint for doing such a great job locking it down! Wouldn't want people extending the useful life of their phones!)
The rest all involve using the LG UP program mentioned and linked in those other guides above in upgrade mode to downgrade to a firmware released in January 2017 or earlier (it needs to have the December 2016 android security patch or earlier) and do an exploit to install an engineering bootloader.
The Verizon model uses the above process but the vibration motor will run continuously when booting until a custom kernel is installed iirc
The international model (H990) uses the above process with a few minor tweaks to get it working

The Verizon and AT&T can be flashed with us996-usa KDZ and then rooted using dirtysanta. This gets rid of verizon vibrate on boot issue and bloatware on both. And AT&T network restrictions.
Sent from my LGE LG-US996 using XDA Labs

ezzony said:
The Verizon and AT&T can be flashed with us996-usa KDZ and then rooted using dirtysanta. This gets rid of verizon vibrate on boot issue and bloatware on both. And AT&T network restrictions.
Click to expand...
Click to collapse
Thanks. Does that mean that a network SIM locked AT&T or Verizon model gets SIM unlocked when we flash us996-usa KDZ?

Gorilla Daddy said:
Thanks. Does that mean that a network SIM locked AT&T or Verizon model gets SIM unlocked when we flash us996-usa KDZ?
Click to expand...
Click to collapse
NO. It would be nice if it were that easy.
Edit: I would also suggest that if you have a code to unlock your fone do it while it has the carrier locked firmware as a precaution.

Several us996 on fleabay right now
Sent from my LG-US996 using XDA-Developers Legacy app

If you're going to use Lineage I recommend Resurrection Remix instead, it runs better in my experience than Lineage does, but your usage may vary.

T-Mobile 6t OoS 10.3.4 question

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.

T Mobile One Plus 6T Unlocked and Bootloader unlockef

I'm just having a really hard time finding an answer. I just had a OnePlus 6T T Mobile edition find it's way to me. It's carrier unlocked and Bootloader unlocked and it's running the latest T Mobile version 10 OOS. Since the bootloader is unlocked, can I just flash the latest non T Mobile OOS Android 10 version to it? In other words the US 6T edition? Or must I use the international version? I'm really confused and sure this has to be answered somewhere but just can't find it. Can anyone help and point me in the right direction? I have lots of experience flashing ROMs, but this one has me stumped at this point. Thanks.

I'm no expert... lol, but based on what I do know, I believe these are your steps...
So I'd take a look at this post-
[T-Mobile / Guide] - Full SIM and Bootloader Unlock + Root for locked devices
Background: I am writing this short guide for people like me that want all the info about the T-Mobile 6T unlock capabilities. None of this is my work. I wanted to have a central thread where T-Mobile users can discuss the T-Mobile specifics of...
forum.xda-developers.com
Follow Step 4, and then from that point allow the ROM to update via OTAs. The MSMDownloadTools are basically a fix-all, but set you back in time update-wise.
I do not believe there's a full TMo ROM for the latest updates, but once again, I could be wrong.
You could also use the International Version if you want, that is what I am running now, but if you want root access, I believe getting 11 working has some extra steps/workarounds (so i'm still on 10)
I initially changed to International because of quicker security updates and it works fine, no issues to complain about, but my wife (on TMo stock) seems to get better signal than I do in more rural areas.

Fenopy said:
I'm no expert... lol, but based on what I do know, I believe these are your steps...
So I'd take a look at this post-
[T-Mobile / Guide] - Full SIM and Bootloader Unlock + Root for locked devices
Background: I am writing this short guide for people like me that want all the info about the T-Mobile 6T unlock capabilities. None of this is my work. I wanted to have a central thread where T-Mobile users can discuss the T-Mobile specifics of...
forum.xda-developers.com
Follow Step 4, and then from that point allow the ROM to update via OTAs. The MSMDownloadTools are basically a fix-all, but set you back in time update-wise.
I do not believe there's a full TMo ROM for the latest updates, but once again, I could be wrong.
You could also use the International Version if you want, that is what I am running now, but if you want root access, I believe getting 11 working has some extra steps/workarounds (so i'm still on 10)
I initially changed to International because of quicker security updates and it works fine, no issues to complain about, but my wife (on TMo stock) seems to get better signal than I do in more rural areas.
Click to expand...
Click to collapse
Thanks for the input. I have seen all those threads, but the main purpose there was for people who did not want to wait for the SIM unlock. That got them past that and also got them so they were able to unlock the bootloader. I already have an unlocked SIM and unlocked bootloader. So I know I could load up lineageos if I wanted to without doing anything special. I would think I should be able to use TWRP to put the International version on using TWRP. And maybe the US version. But that may not be the case.
It just seems like any work on this device stopped after the above. Of course once you are bootloader unlocked, there may not be need for much more and people may just move on to other ROMs.
Thanks.

Fenopy said:
I'm no expert... lol, but based on what I do know, I believe these are your steps...
So I'd take a look at this post-
[T-Mobile / Guide] - Full SIM and Bootloader Unlock + Root for locked devices
Background: I am writing this short guide for people like me that want all the info about the T-Mobile 6T unlock capabilities. None of this is my work. I wanted to have a central thread where T-Mobile users can discuss the T-Mobile specifics of...
forum.xda-developers.com
Follow Step 4, and then from that point allow the ROM to update via OTAs. The MSMDownloadTools are basically a fix-all, but set you back in time update-wise.
I do not believe there's a full TMo ROM for the latest updates, but once again, I could be wrong.
You could also use the International Version if you want, that is what I am running now, but if you want root access, I believe getting 11 working has some extra steps/workarounds (so i'm still on 10)
I initially changed to International because of quicker security updates and it works fine, no issues to complain about, but my wife (on TMo stock) seems to get better signal than I do in more rural areas.
Click to expand...
Click to collapse
The more I search, I guess that it appears there are some privileged partitions. This method you mention gets around that irrespective of the SIM and Bootloader being unlocked already.... Sigh....