yashsingh1/xdaforums huggingface dataset:
[LG G8 Guides, News, & Discussion] ae3502bx:
OK, thank you.

please clarify:

from which firmware V50 (region) to which firmware V50 (region) was a successful Crossflashing performed?

(my English is a Google translator, so I apologize if I re-ask some things again)
[LG G8 Guides, News, & Discussion] netmsm:
you're welcome =)

I'm sorry I've no V50 and so I didn't crossflash V50. Other guys have done it and you may find helpful info by reading their posts in this thread.
[LG G8 Guides, News, & Discussion] ae3502bx:
"by reading their posts in this thread."

read and re-read more than once, but unfortunately no one provided specific information with details about the successful crossflashing v50, only fragments of efforts or intentions ...
[LG G8 Guides, News, & Discussion] ae3502bx:
have you succeeded with this guide (v50 sprint a10 crossflashing to korean or others a11) ?
[LG G8 Guides, News, & Discussion] AsItLies:
You can follow Clouds guide here.
[LG G8 Guides, News, & Discussion] ae3502bx:
Of course I can, but I'm interested in this path described in this guide

which I have already used successfully for g8 att
[LG G8 Guides, News, & Discussion] netmsm:
Please, first make backup then do what you did on your G8. If you get any problem and need help just let me know.
[LG G8 Guides, News, & Discussion] cloud1250000:
Sorry I did not try this method.. @ae3502bx
[LG G8 Guides, News, & Discussion] AsItLies:
I've used this method for a G8 sprint to Kor Open a11.

The following is what I had to change to get volte to work:

"Trying to get Kr Open a11 working with t-mo, have volte working just by editing cust.prop in root/product/OP

those edits also give 'field test' in hidden menu, gets rid of the korean letters in dialer and numerous other advantages, like being able to take a screen shot! lol

I only modified in there the target_region, target_country, locale.region, locale.language and LGfeatureset

still working on trying to get stock cam to work and also vowifi, but the gcam port I tried worked no probs. Will update if more progress"

the screenshot shows those values changed to what they should be.

didn't make any more progress on it for the G8, as the packages are 'signed' differently than regular G8's.
[LG G8 Guides, News, & Discussion] Chaitanya More:
pls someone help me with this it seem i lost imei too it was softbrick so i tried this step to solve or install rom but this is showing up..
[LG G8 Guides, News, & Discussion] netmsm:
Make backup of modemst1, modemst2, fsg, and ftm and try another kdz.
[LG G8 Guides, News, & Discussion] Chaitanya More:
someone gave me gpt zip file how to use it well im trying to get into partition but saying,unable to read packet header trying to find other usb
[LG G8 Guides, News, & Discussion] Chaitanya More:
well yes screen is black
[LG G8 Guides, News, & Discussion] Pypy50:
Any news about sotck camera in a11 Korean version for our G8 Sprint crosflahed , i think the thing is that Korean G8 has 3 cameras and our has 2 so the config file seems to be written for 3 😂 I don't know about this topic but in programming we usually think like that
[LG G8 Guides, News, & Discussion] netmsm:
Sounds like hard brick, so follow this guide.
[LG G8 Guides, News, & Discussion] Chaitanya More:
partition has been started im loading image of ftm op a op b ( as lun 0 bin file) first load image then read data n close ..pls tell me how to flash that gpt file u have given am i doing currect? i dont know what is fh loader in qfil
[LG G8 Guides, News, & Discussion] Chaitanya More:
i dont know what to say i did open partition manager load image of respective lun 0 or other then read data nothing change exept for 1 new error i have 1st image
[LG G8 Guides, News, & Discussion] netmsm:
So it's not hard brick!

Now just follow the instruction of this thread exactly.

If it didn't work, try making backup of and erase these partitions: boot, system, product and vendor in addition to mentioned partitions. Then try for crossflashing.
[LG G8 Guides, News, & Discussion] Chaitanya More:
whi

which vendor
[LG G8 Guides, News, & Discussion] netmsm:
On both sides, a and b.
[LG G8 Guides, News, & Discussion] Chaitanya More:
i did but no change same error about lun 6. problem was i had lg g8x android 10 by mistakely i flash it with same region but with lg g8 rom it got softbrick from that day
[LG G8 Guides, News, & Discussion] Chaitanya More:
pls check this i cant find lun 6 anywhere in my partition n error is all about lun 6 gpt is not found or unreadable
[LG G8 Guides, News, & Discussion] AsItLies:
I mentioned this in tele g8 group but u may have missed it. I wish it was as simple as a config file (and it may be - will have to look deeper for which configs to modify).

But, you can not just flash the 2 cam g8 apk to the korean rom, that won't work. The apk's on the korean rom are signed differently than the apks on other roms. It **may** be the korean apk is kind of 'hard coded' to look for three cams and will just fail if it doesn't find them. If that's the case, and because the 'normal' apk can't be installed, it might be there's nothing anyone can do.

cheers
[LG G8 Guides, News, & Discussion] Dimon1982:
после того, как я прошил свои LG V50s с U +, чтобы открыть corea, у меня появился s / n, и каждая перезагрузка пишет какую-то ошибку, что-то у меня там 0, вероятно s / n, я буду дома возле ПК, попробуйте для восстановления старого ftm Вифи еще раз подключаться не хотел, потом после перезагрузки включился.
[LG G8 Guides, News, & Discussion] openbox909:
Hidden menu->SVC menu->Mid menu->Nt code-> edit
[LG G8 Guides, News, & Discussion] openbox909:
https://xdaforums.com/t/lg-velvet-retail-mode-thread.4323377/post-85819547
[LG G8 Guides, News, & Discussion] netmsm:
I can't think of new solution for now except the way of making a full backup then trying "ChipErase" on LGUP.

At least, make sure you've created backup of modemst1, modemst2, fsg and ftm before "ChipErase".
[LG G8 Guides, News, & Discussion] Dimon1982:
How many characters should the serial number consist of?
[LG G8 Guides, News, & Discussion] Dimon1982:
can I somehow find out my phone serial number from IMEI?
[LG G8 Guides, News, & Discussion] Dimon1982:
what should be written there in the NR code?
[LG G8 Guides, News, & Discussion] openbox909:
Попробуйте этот OPEN_KR

"1","FFF,FFF,FFFFFFFF,FFFFFFFF,60"
[LG G8 Guides, News, & Discussion] openbox909:
Зависит от того прошивку какого оператора залили,другие варианты по ссылке,что я давал
[LG G8 Guides, News, & Discussion] Chaitanya More:
well it seem to be risky can u confirm lun 6 really exist in lg g8x or not then i can really think of doing this step as i dont want to hardbrick for no reason .about bakup i did that but is it really okay to bakup lg g8 flash where as my mobile is lg g8x
[LG G8 Guides, News, & Discussion] Dimon1982:
thanks a lot!!! came up, stopped writing an error) and you also don’t tell me, can you somehow enter the serial number into it, without the participation of a PC?
[LG G8 Guides, News, & Discussion] Sisiw393:
I have lg g8x thinq att version tell me its woorking? Thank you!
[LG G8 Guides, News, & Discussion] reticuli:
What exactly does ChipErase do, does it remove all partitions? Maybe this could work to convert v50s to g8x (v50s is 99% identical to g8x). Because lgup complains that the partitions are different maybe Chiperase could solve it.
[LG G8 Guides, News, & Discussion] longruabg01:
hey bro, you can send to me your lgup ?
[LG G8 Guides, News, & Discussion] netmsm:
A bit risky but not big a deal having backed up lun5.

lun6 must exist. Extract GPT files from a KDZ and flash just the lun6 to ensure it is not corrupted.

Why do say about backing up G8 for G8x?! I didn't suggest that!

Remember, lun5 backup can only be functioning on the original phone, from which the backup has been created, not even to the another similar phone.
[LG G8 Guides, News, & Discussion] Sisiw393:
Im stock on pie os in my LG g8x at&t im from philippines. I cant update ota or crossflash. This tutorial works on my device?
[LG G8 Guides, News, & Discussion] netmsm:
It should.
[LG G8 Guides, News, & Discussion] azagaming:
help, im still stuck , i even erase vendor_a, vendor_b, system_a, system_b, product_a, product_b, boot_a and boot_b.
[LG G8 Guides, News, & Discussion] AsItLies:
but what you don't make clear is what option, in lgup, are u selecting?

u have to select partition dl, and select all then unselect sid (a and b). it will not work with refurbish or upgrade.

no one knows which option you're selecting if u don't tell them ;)
[LG G8 Guides, News, & Discussion] netmsm:
Redo the whole steps. Hold vol+ after restart from EDL mode to not let it go anywhere except download mode immediately.
[LG G8 Guides, News, & Discussion] Pypy50:
I have a G8 crosflahed to a11 Korean using it for a month after crossflash and today I got my first reboot and stock logo LG u+ it was weird bc once I press vol - and Connect the phone through the PC it boot again normal...

Any similar experience ?
[LG G8 Guides, News, & Discussion] ae3502bx:
LG G8 ThinQ Software Update | Verizon Customer Support

Get instructions on downloading the latest software update for performance improvements to your LG G8 ThinQ, including current Android security patches.

www.verizon.com

as soon as it appears "kdz"

can be upgraded to A11
[LG G8 Guides, News, & Discussion] ThangPC:
I switched from V500N LGU to V500N OPEN. And fix the nt-code by editing the ftm file. everything is perfect

Getting access to recovery combination(FTM mod)

* I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed (like it did for me...). * YOU are choosing to make these modifications, and if you point the finger at me for messing...

xdaforums.com
[LG G8 Guides, News, & Discussion] Chaitanya More:
i did chip erase screen started n said opid mismatch whats next step i think its not even booting into lge drivers, after that its message about ur device fail routine safety check this may temporary problem visit site ....at end its written all slot are unbootable
[LG G8 Guides, News, & Discussion] Chaitanya More:
i went in fastboot download mode it still showing mwe tmo us
[LG G8 Guides, News, & Discussion] Chaitanya More:
thks a lot now i need only sprint lg g8x kdz it look like model has reset to origin i cant go in partition manager as its usb 3.0 but im trying or i will wait for sprint rom
[LG G8 Guides, News, & Discussion] Chaitanya More:
pls if u have any link of tmo us lg8x rom means sprint.
[LG G8 Guides, News, & Discussion] netmsm:
There's no Sprint KDZ.

That's normal.

Now, all you need to do is 1. crossflash using my guide. 2. restore modemst1, modemst2, fsg and ftm.
[LG G8 Guides, News, & Discussion] Chaitanya More:
restore means using xml file ? or load lun respective bin file?
[LG G8 Guides, News, & Discussion] AsItLies:
restore, in this case, as there are only 4 partitions, would be to flash them using qfil in edl mode (lun respective bin file is one way to put it).

otherwise you'd have to create the xml file yourself, there won't be one specific to do this.

cheers
[LG G8 Guides, News, & Discussion] sasindu:
Hi,

My device is a LM-G820N. Currently iam running android 10 sk telecom firmware. I tried to flash android 10 open korean firmware with lg up by selecting upgrade option in lg up software. But it gives an error saying cannot change from skt to open korean firmware. Please advice, is this possible? What am i doing wrong?
[LG G8 Guides, News, & Discussion] AsItLies:
That isn't possible, the way you're trying to do it. You're running into the 'mismatched OPID' error that this thread is all about. Did you read the original post?

the point of the original post is to explain how to accomplish what u want and avoid the error you're getting.

cheers
[LG G8 Guides, News, & Discussion] ohmediafire:
Mine is not working too.

I try to change from AT&T to Open Canada.

Before this I deleted all the files that you mentioned in QFIL and unchecked sid_a and sid_b in LGUP.
[LG G8 Guides, News, & Discussion] netmsm:
See the attached file.
[LG G8 Guides, News, & Discussion] netmsm:
There may be something missed.

Please send me screen shots of "Download Mode" before and after erasing partitions (FTM, Modem_A, Modem_B, SID_A, SID_B, OP_A, OP_B).
[LG G8 Guides, News, & Discussion] Nokinoks005:
Do this tutorial also works with V60? with the same attachment files + KDZ from V60 firmware
[LG G8 Guides, News, & Discussion] brigantti:
With this crossflash if i already have bootloader unlocked and root do i need to relock bootloader before crossflash?just want to know before attempt this guide.
[LG G8 Guides, News, & Discussion] netmsm:
You need the proper Firehose for SD865 and maybe a newer version of LGUP_Common.dll. Find proper files and give it a try (before doing anything, it is highly recommended to make a full backup).

Nope =) it is working with modified and official bootloaders.
[LG G8 Guides, News, & Discussion] sasindu:
Thank you very much AsItLies for your reply. I was not sure as i was only going to flash to the open korean firmware. (Not to any other region). I will follow the tutorial. Thanks again.
[LG G8 Guides, News, & Discussion] Nokinoks005:
Thank you, do u know where i could get the proper firehose for my V60?
[LG G8 Guides, News, & Discussion] netmsm:
I did a brief search but found nothing. sorry.
[LG G8 Guides, News, & Discussion] ohmediafire:
Sorry, I can't screen shot Download Mode before erasing partition, because i don't now how to go back.

how do I go back and restore my partitions with my backup ones?

My phone only enters FastBoot Mode right now.

or is the any way to enter EDL mode with this condition?
[LG G8 Guides, News, & Discussion] netmsm:
First send me screen of the current Download Mode.

It's alright if it enters Fastboot since FTM is missing.

Boot into EDL (press and hold vol- and Power, when the screen goes black repeatedly press vol+ while holding vol- and power. You may need to repeat it for some tries.)

I hope you have made backup of partitions if so, do what you did to erase partitions but this time choose "load data" instead of "erase".

In pop-up window browse for backup and pick it.

Wait a few seconds for the process and close it.

Do it for all erased partitions.

Let me know if you haven't made backup of FTM.
[LG G8 Guides, News, & Discussion] AsItLies:
Just to make sure it's clear, as netmsm is saying, you can get to edl mode from any screen, even with the device off.

The difference is that when the device is booted and you go to edl, you get a count down screen, but from any other state of the device, you won't get that count down, you just have to wait for it to go blank, then start spamming vol up.

cheers
[LG G8 Guides, News, & Discussion] Bwangster12:
Add me to the list of those this worked for. I always had trouble getting into fastboot, so this method was ideal. I did not get the switch carrier popup (coming from Sprint unlocked), but it is working perfectly. Ironically, I haven't been able to make outgoing calls on my phone, but now I can. Thanks!
[LG G8 Guides, News, & Discussion] Spherecomm:
Can you flash the Korean A11 using this?
[LG G8 Guides, News, & Discussion] ohmediafire:
Thank you vary much @netmsm and @AsltLies , you are life savers =)

I don't know how and what's wrong before, but by following the steps again I can flash with Open Canada firmware now.

Here's my Screen Shots.
[LG G8 Guides, News, & Discussion] AsItLies:
Great, very cool. Suggestions though, u might want to mod that pic with your imei in it, people do actually try to steal those sometimes :(

Also, like me, you lost your s/n. Easy to fix that with a hex editor, assuming you have the s/n recorded somewhere. Extract the current ftm partition and at offset 12000 is where you start putting in the s/n. Flash it back and it will show up again.

cheers
[LG G8 Guides, News, & Discussion] ohmediafire:
Oh crap, I forgot about that. Thanks for remind me and thanks for the information about S/N too.

you such a good guy =)
[LG G8 Guides, News, & Discussion] netmsm:
Theoretically yes.
[LG G8 Guides, News, & Discussion] velicas:
While I have a technical background, I'm completely new to phone mods, so I apologize if the following is a stupid question.

willmyphonework.net lists the following variants for the G8:

LMG820QM5 (Xfinity Mobile USA)

LMG820QM7 (Unlocked, ACC USA)

LMG820QM7D (LRA USA)

LMG820QM8 (Amazon)

LMG820TMB (T-Mobile USA)

LMG820UM0 (Sprint USA)

LMG820UM1 (AT&T USA)

LMG820UMB (Verizon USA)

In this thread, I've seen "LMG820UM" mentioned - without the last character (0/1/B). And also "Open US". But what do those correspond to in the list above? (Or is this not carrier related?)

Thank you
[LG G8 Guides, News, & Discussion] AsItLies:
That's a good breakdown of the models, haven't seen it before.

When people mention LMG820UM they are basically saying they have one of the commom us variants. Almost all of these devices are sold as either Sprint, AT&T, Verizon or T-Mo models. It seems there are very few QM models in circulation (and most that have those versions probably may not know 'which' in that list of them above for QM they have).

Another version would be the Korean 820N, that's the 3 rear camera version, so easy to know if u have that or not.

Question though, what more specifics are you looking for, and why?
[LG G8 Guides, News, & Discussion] velicas:
I mentioned one of them already: "Open US". What is that?

This started because I was looking to buy a G8 off of ebay, and I ran across a thread here that talks about enabling VoLTE, which is a requirement for using Tello (a Sprint/T-Mobile MVNO I'm interested in.) Anyway, that thread mentions this thread as a solution for owners of the Sprint variant.
[LG G8 Guides, News, & Discussion] AsItLies:
well as the codes indicate, it's the QM version. Unfortunately, and this is where some people get 'bit', the QM version also comes in the amazon variant and an LRA one (whatever that is), but the one you'd want would be the 'unlocked USA' one.

Caveat; the point of this thread, and others, is to take the Us Open Rom (kdz) and flash it to your (whatever variant you have) device.

So, usually, instead of buying the (almost always) more expensive QM variant, most are buying less expensive sprint / at&t etc devices and using this guide to crossflash them.

As an example, I have a Sprint device, used this guide to flash the Us Open a10 rom, now I have volte and vowifi working with my t-mo mvno mint mobile.

cheers
[LG G8 Guides, News, & Discussion] velicas:
Alright, so that's what I was hoping/expecting would be the case. And this was mostly a question of the terminology involved.

Btw, thanks for answering my noob questions. Much appreciated.

I wonder if I could ask one more basic question, which I hope isn't too off-topic: Assuming your G8 still has a Sprint IMEI, let's say you went with (a MNVO of) AT&T or Verizon - wouldn't they potentially decline to provision it? And did you happen to run in to any such issues with Mint (even though they're TMO/Sprint)?
[LG G8 Guides, News, & Discussion] AsItLies:
Very good question, more people should ask rather than find out too late.

I've not used at&t or sprint in years and years. But, at&t is known for (you'd want to verify with them what their current policies are) being very strict on which devices work (at least volte) on their network, they supposedly do check imei to verify it's an at&t phone and that you are running an at&t rom.

sprint of course is / was cdma and some roms don't have that ability. So first, the rom has to be capable, but they too are very strict about what will work and what won't. But now as t-mo, things will be different. I just don't know what or when.

Verizon I've no experience with, but have flashed verizon rom before, seems to be the most 'locked down' rom I've ever used.

For me, with sprint device, but running a10 Us Open rom, my mint mvno has no issues at all. They don't check imei (as far as I know), volte and vowifi work no issues at all. Also, I have a prepaid t-mo sim and it works volte and vowifi with same set up.

basically; if your carrier is going to be at&t or sprint etc, check with them to verify what will work and what won't. Ask if they check imei, if they do, it's **possible** that would defeat any crossflashing you might want to do.

cheers
[LG G8 Guides, News, & Discussion] blaze2051:
i cant get LG-up 1.16 to work i do have 1.14 but i dont have the parition DL option . i only have refurbish, upgrade or fota upgrade option in 1.14
[LG G8 Guides, News, & Discussion] netmsm:
Download the requirements and follow the preparation.
[LG G8 Guides, News, & Discussion] blaze2051:
I have downloaded the files and preparation, win10 just wont open 1.16 at all. only why was to get a windows 7 machine to open 1.16 i dont know why win10 cant open 1.16 for some dumb reason.
[LG G8 Guides, News, & Discussion] blaze2051:
how do you recover from a bad/partial crossflash ? because now its in a rapid bootloop and i cant use qfil to flash my backup files. i only have access to download and edl mode, but sahara error no matter what i try? is there another way to flash? i was going from sprint_US to G820UM20d_00_USC_US_OP_0511.kdz
[LG G8 Guides, News, & Discussion] Chaitanya More:
even after chip erase i still hv same error i cant find any way to load partition manager
[LG G8 Guides, News, & Discussion] netmsm:
Try a new, clean installation of qpst and drivers using a confident usb cable and port.
[LG G8 Guides, News, & Discussion] netmsm:
It seems you haven't picked any KDZ!
[LG G8 Guides, News, & Discussion] jericho246:
Sorry in advance if this is stupid. I used this guide to flash the A11 Korean Open fw on my alphalm (Sprint variant) LG G8... Then I flashed TWRP and installed ArrowOS ROM. Everything was fine until I inserted my SIM Card and input the PIN. The device froze and restarted. It happens every time after inputting the card's PIN. Stupidly I didn't insert the SIM when I was temporarily on the stock korean firmware, but I'm pretty sure the same would have happened.

If this isn't fixable then no biggie, as I moved on from the LG G8, I just wanted to "experiment" a bit. :)

edit: went back to Korean firmware and the SIM... works. Something is probably wrong with slot B on which the ROM was installed.
[LG G8 Guides, News, & Discussion] blaze2051:
it wasnt usb or port or version issues it was parition issue and qfil could not read parition information from the phone. only way i was able to restore was to use livedvd and reflash via linux, now i have a full dump in linux. But after getting phone to work again qfil still does not work still have same error, and i tried multiples ways to solve
[LG G8 Guides, News, & Discussion] AsItLies:
I don't know for sure, but it *sounds* like, at this point, that you're experiencing that common sahara error.

A great many have experienced that and have found there are a few things that will help;

1) use a usb 2.0 port. It's old software and requires a slower port to work. If you don't have one, use a computer that does have one, or possibly rig up a cable that is usb 2.0 and an adapter for usb type c. Another option would be to lower the baud speed for that port (I've not done that, research it if needed).

2) some have had to change windows to allow 'unsigned drivers' to run. research that also, it depends on your version of windows / re how you do that.

cheers
[LG G8 Guides, News, & Discussion] blaze2051:
i got it to work only after installing and using qfil from qpst 2.7.474 and under windows 10 admin and compatibility mode windows 8
[LG G8 Guides, News, & Discussion] abg360:
Hi again @netmsm i have this similar problem with the guide but before if you remember your guide works great on my v50 from sprint but now that i want to flash the new eu firmware or korean it doesnt work, i made all the steps but nothing seems to work, any ideas?
[LG G8 Guides, News, & Discussion] netmsm:
Hi abg360 =)

In addition to the mentioned partitions, try backing up and erasing these on both sides a and b: boot, system, vendor and product.
[LG G8 Guides, News, & Discussion] abg360:
i already did it but still no luck, same screen.

Just to say thank you and help others, the solution was to reinstall lg up.