yashsingh1/xdaforums huggingface dataset:
[LG G8 Guides, News, & Discussion] netmsm:
I don't have Telegram, sorry.

What do you mean by saying "safe"? Before doing anything create

backup

of LUN5 partitions.

If it happens we should diagnose or revert back to the original firmware if we cant find the answer.

Yes, FTM can be restored and it'd work perfectly.
[LG G8 Guides, News, & Discussion] Chaitanya More:
i did try qfil but its saying port failure 99 something if i try to open partition manager pls help!!!
[LG G8 Guides, News, & Discussion] Chaitanya More:
can someone check y its showing exclamation mark on driver in device manager
[LG G8 Guides, News, & Discussion] netmsm:
Turn on the phone, if it is not completely black so redo what you did to get into EDL mode.

If it is black, just restart the phone by holding power and vol- for 10-15 seconds. It may solve this issue. If not, try to hold power and vol- while spamming vol+; do it several times.

If none is successful you have to open the back glass or wait until it turns off.

In case the screen is black, so the phone has been bricked and you need to follow this thread.
[LG G8 Guides, News, & Discussion] Chaitanya More:
this happen after i erase the partition due to it was softbrick wrong model i didnt take bakup
[LG G8 Guides, News, & Discussion] kim12355:
Yes. Davembg reported that pernamently lock make me scare of.

But it impossible if lun5 is original, if any problem just no wifi, data access no signal. Lock pernamently is impossible
[LG G8 Guides, News, & Discussion] netmsm:
Please tell me is the screen is black when you switch the phone on or something is shown?
[LG G8 Guides, News, & Discussion] netmsm:
No one's reported such problems yet.

To avoid being stuck in perm lock error the best thing to do is to make a backup of LUN5. I provided some codes to do so, here.
[LG G8 Guides, News, & Discussion] davembg:
My LG-G850UM (ATT branded) does indeed have the "permanently locked" issue.

This is 100% my fault, as I don't have a valid backup of LUN5.

This is what I did to break my phone:

1) I made backups of the ftm, op_a, op_b, modem_a, sid_a, modem_b and sid_b partitions using QFIL

2) I crossflashed to an OPEN_CA NDZ with Android 11.

3) my partition sizes changed, since ATT's op_a and op_b partitions are MUCH larger than any others.

So, I can't restore my phone until I figure-out how to resize my OP_A and OP_B partitions.

Point is - don't fuss with your phone unless you're willing to accept the risk.

This is one of my "backup" phones, so, it's not a critical issue for me.

@netmsm has been VERY helpful and can't be expected to solve any issues....

Point is - don't be hacking your phone if you can't afford to replace it or it's mission critical.
[LG G8 Guides, News, & Discussion] netmsm:
Yes indeed, I believe what I say (No one's reported such problems yet) refers to the problems that kim12355 just mentions (no wifi, data access no signal).

What did happen that you lost LUN5? With that 3 things you did, I just can't figure out how it'd be possible! All that varies from rom to rom is solely about LUN0 and nothing happens to other LUNs.

Do you have this problem now? So first create backup of LUN5. Then find another G8 running ATT's rom. Dump GPT layout from it by which you can re-partition your phone. Although I think VRZ rom has the largest OP partition which means maybe you can use VRZ's GPT layout.

Re-partitioning will erase all data on the phone.

It seems I'm in your good books, thanks.
[LG G8 Guides, News, & Discussion] kim12355:
Yes. I have same question as netmsm. Lgup dont touch lun5 and kdz not including lun5. How possible lock pernamently happened to you?

@netmsm how do you think we need to run lgup with refurbished mode after crossflash? After that just erase SID_ab to bypass opid check
[LG G8 Guides, News, & Discussion] mpena:
Hi, I crossflash from sprint to open us everything is ok but VoLTE is not working. I need to do something step extra?
[LG G8 Guides, News, & Discussion] Chaitanya More:
pls help me with this it shown do u want to change i did but this error happen
[LG G8 Guides, News, & Discussion] Chaitanya More:
i lost imei number too lg up not showing it
[LG G8 Guides, News, & Discussion] davembg:
I do have that problem, because I'm stupid....haha.

OR, perhaps something wonky was done with the phone when I bought it a year ago (by the reseller).

I'll look for a cheap G8x, I don't see any VZW firmwares for the 850 series phones.
[LG G8 Guides, News, & Discussion] netmsm:
In this case, you have to modify OP using hex editor.

1. Dump OP_a

2. Open it using hex editor

3. Find the OPID in the file. For example: The original OPID is SPR_US and you flashed Open_kr so search for Open_kr in the file and change it to SPR_US. You'll find too many Open_kr in the file but one determines the OPID. The only cue I can tell is the one to be changed is placed between too many null values, see the attached file.

4. Change it to the phone's original one.

5. Save and restore it to the phone.

6. Use ABL and XBL engineering to disable verity in fastboot mode. For this, dump the vbmeta_a.

Spoiler content hidden.

7. Flash the original ABL and XBL.

8. Restart the phone.
[LG G8 Guides, News, & Discussion] netmsm:
Hi =) Check this.
[LG G8 Guides, News, & Discussion] netmsm:
That's really bizarre!

Create a backup of LUN5 and FTM as soon as possible before doing anything.

Then flash the KDZ using LG Flash Tool.
[LG G8 Guides, News, & Discussion] mpena:
Hi, thanks for answer. I already try that but the pdc app give me error when I tried to load the files.
[LG G8 Guides, News, & Discussion] netmsm:
No! You got the guts ^_^

Use the attached GPT files.
[LG G8 Guides, News, & Discussion] netmsm:
Check the file path and its name there may spaces, dashes, etc. should be removed.
[LG G8 Guides, News, & Discussion] mpena:
Ok, I will try again. Thanks for the support
[LG G8 Guides, News, & Discussion] Pypy50:
What's the advantage by doing this process , and also can I flash g820n android 11 Korean in my g820um ???
[LG G8 Guides, News, & Discussion] netmsm:
I don't know.

You can flash G820N A11 to your G820UM.
[LG G8 Guides, News, & Discussion] netmsm:
@Wish39 Hi,

I don't know if you were successful to crossflash K51 or not, however I managed to crossflash LG V30 Korean via "ChipErase". This will delete all partitions so a backup of identity partitions should be created.
[LG G8 Guides, News, & Discussion] kim12355:
Do you know how run edl-client to make full dump stable and smooth. It sometimes stop while dumping on windows
[LG G8 Guides, News, & Discussion] AsItLies:
I've used that tool quite a bit (on linux) and never a problem like that. I'd suggest to use the ISO and flash to usb and boot it. That will give you a linux ubuntu environment with all dependencies resolved, and none of the windows limitations.

Access this page and little ways down is the link to the ISO file. I've checked and this utility does backup all the partitions in Lun5, among all the others of course.

cheers
[LG G8 Guides, News, & Discussion] St.Noigel:
Was it a joke? Or someone really try to flash G820N FW to G820UM?
[LG G8 Guides, News, & Discussion] netmsm:
Give it a try.

Just camera app not working which can be resolved by some modifications. You can find the suggested method somewhere in this thread.
[LG G8 Guides, News, & Discussion] St.Noigel:
Thanx for quick reply! I`ll try it!
[LG G8 Guides, News, & Discussion] St.Noigel:
Tried this... Didn`t work... Tried older camera apk from apkmirror - still without good results.. But gcam works ))

(( BTW A11 for g8 is so smooth!

Also have NT code issue, but cellular network works.. Only one issue - stock camera...
[LG G8 Guides, News, & Discussion] netmsm:
Try physical camera = 3.
[LG G8 Guides, News, & Discussion] St.Noigel:
Tried 3 and 4... nothing... Now I`m kust looking for change my default camera to Gcam )
[LG G8 Guides, News, & Discussion] netmsm:
Does the change in "/product/OP/

Cust.prop

" remain after reboot, or not?
[LG G8 Guides, News, & Discussion] Tretigri:
Thanks for the great job! Hoping you could help me in the problem I met

I'm trying to go from lg v500N KT to v500em, I followed all the steps but was impossible for me to get to the menu in lgup with all the options, even erasing the content of the seven partitions and getting in upload soon after...

So... trying to upload the firmware anyway (my great fault) it ended up with this error

after that the phone could not reboot, it just blink the lg logo then disappear for a while.

I tried again the process, getting in edl and erasing the parts, so at the end (I had to erase also the carrier part for avoiding a message of croflashing error from KT to EU ) I manage to install the firmware desired (using refurbish, the others option were still not available)

but when the uploads ends and the mobile should reboot, even if I don't receive any error message, it flash the lg logo and then disappear for a while... no way to stop it.

Should I try to flash back abl and root? Or should I try else?

Thanks for your help
[LG G8 Guides, News, & Discussion] netmsm:
Please follow the preparation and change the attribute of "UI_Config.lgl" to read only.

I've experienced that going from a firmware to another faces such issue. I don't know why, but you may better try a different firmware to make phone boot properly. Then go back and try the desired firmware.
[LG G8 Guides, News, & Discussion] St.Noigel:
nope... RW works bad on A11...
[LG G8 Guides, News, & Discussion] netmsm:
I don't think this problem relates to A11. Sometimes changes in OP do not remain. It happend several times on A10 Open_CA for me. What I did to resolve this was to some extent complex. You may try another firmware then go back to Korean A11.

If you're loaded for bear to do a complex task and take the risk I can tell you what and how to do.
[LG G8 Guides, News, & Discussion] AsItLies:
I could be mistaken but, pretty sure that to get the change to 'stick' after reboot what is needed (and I've done this in 'system' partition) is to reflash the vbemta image with fastboot.

this is the fastboot command to accomplish above;

fastboot --disable-verity --disable-verification flash vbmeta_a blank_vbmeta.img

In this example a 'blank' vbmeta image was used but that's not necessary, just flash back the vbmeta image that is already there, with the above command, all on one line. Assuming of course your current boot slot is 'a', in the exmple, change to b if it's b.

cheers

note: also, doing above, assuming magisk hide is on, this will also show in playstore as 'device is certified'.
[LG G8 Guides, News, & Discussion] netmsm:
I'd done a really hard task for it but this is very easy and short. Great =)
[LG G8 Guides, News, & Discussion] Tretigri:
Many thanks again for your help, with the read only options all the features came up.

I manage to go from Korea KT to EM firmware, as others were saying i got the:

But in spite of that I could make calls.

:)
[LG G8 Guides, News, & Discussion] netmsm:
Root the phone, go to hidden menu > mid info, modify NT-Code; this is the way I was told they had done on Korean Android 11.

For that Google certification error I don't know what to do, sorry.
[LG G8 Guides, News, & Discussion] Tretigri:
Thanks I'll try that, solved the certificate restarting google!
[LG G8 Guides, News, & Discussion] Pypy50:
It's camera app working fine ?
[LG G8 Guides, News, & Discussion] Tretigri:
Yes
[LG G8 Guides, News, & Discussion] Pypy50:
Ok great

I'll do it later

Are on a11 Korean version right?
[LG G8 Guides, News, & Discussion] Tretigri:
The Lg V500N had just one imei as it's sold single sim, the v500EN software now displays a second imei (a double zero) reading the specifics they appear the same, has someone tried to use a second sim changing the 2nd imei?
[LG G8 Guides, News, & Discussion] Tretigri:
Yes, I crossed from A11 V50030b Lg V500N KT (Korea Telecom) to a european version: V500EM30a_00_OPEN_EEA_OP_0809.kdz
[LG G8 Guides, News, & Discussion] Pypy50:
Have you solved the issue with the camera and please let me know also if you are using LG g8;
[LG G8 Guides, News, & Discussion] Pewdeadcake:
what to do if i choose earase entire flash when i right click into the op_a partition?
[LG G8 Guides, News, & Discussion] Pypy50:
l dont have the "PARTITION DL" option to select the partitions to be flashed???
[LG G8 Guides, News, & Discussion] St.Noigel:
(с) OP Please follow the preparation and change the attribute of "UI_Config.lgl" to read only.

Just read and you`ll be happy! )
[LG G8 Guides, News, & Discussion] netmsm:
Partitions are deleted which equals to hard brick. To recover the phone follow this thread.
[LG G8 Guides, News, & Discussion] Pypy50:
thanks , have found solution for camera issue in a11korean version ?
[LG G8 Guides, News, & Discussion] St.Noigel:
Unfortunately nope((
[LG G8 Guides, News, & Discussion] Pypy50:
l'm testing for now it's ok with gcam
[LG G8 Guides, News, & Discussion] Pewdeadcake:
apparently i followed your tutorial, but i have lost my imei and s/n number, any solution for this?
[LG G8 Guides, News, & Discussion] netmsm:
There's a way to resolve this also that I suggested to others previously. Find all and follow the instruction of how to remove IMEIPROT lock that prevents from writing IMEI.

The only thing I have to add is about modifying NT-Code which is possible only on Korean A11.
[LG G8 Guides, News, & Discussion] Pewdeadcake:
do you have any link to the thread? since every method i try requires money. i will be very happy if you send me some instruction/ thread link

p/s: every time i reboot my phone it appears a error like this : "WARING! Current Version Is Not Available To User. Can't Find Matched Carrier. Check NT-CODE: 0" and the screen said that

This Phone Is Permanently Locked and Can Not Be Unlocked​

after pressing cancel, the device said that this phone is carrier locked
[LG G8 Guides, News, & Discussion] netmsm:
Search in my posts you'll find them.

This error for NT-Code is also curable.

Remember to do all just on Korean A11.
[LG G8 Guides, News, & Discussion] lawallet:
I've followed this guide for flashing a ATT G8X to the CAN one. When I reboot I'm stuck at the LG logo. Is there a fix for this? I also tried deleting sytem,vendor, etc. as well to the same result
[LG G8 Guides, News, & Discussion] netmsm:
Try flashing Korean A9 at first, then flash CA. Also try disabling verity, it may help.
[LG G8 Guides, News, & Discussion] marahuan:
Hello everyone! Good job, friend. I successfully flashed my lg v500n lgu to lg v500em. After finishing the flashing process in lgup, without booting into the system, I switched to edl mode, restored the ftm partition, flashed a patched boot from a European. Then I flashed the engineering abl , translated into fastboot, disabled the vbmeta check, restored the native abl. Booted the system, now I have a full-fledged European. I now have root rights, generally satisfied. Thank you. Sorry for my English.
[LG G8 Guides, News, & Discussion] Pewdeadcake:
hi did you face the NT-Code error?
[LG G8 Guides, News, & Discussion] marahuan:
Yes, there was a mistake. But having root it is easy to fix it. I don’t know how correct it is, I replaced cust_path_mapping.cfg with Korean in the OP section
[LG G8 Guides, News, & Discussion] Pewdeadcake:
could you tell me the path of OP section?
[LG G8 Guides, News, & Discussion] marahuan:
I am using root explorer ./product/OP
[LG G8 Guides, News, & Discussion] Pewdeadcake:
hi, can you send me your cust_path_mapping.cfg please?
[LG G8 Guides, News, & Discussion] marahuan:
I have lg v500n LGU
[LG G8 Guides, News, & Discussion] Pewdeadcake:
yes, i have the same lgu+ device

anyways thank you
[LG G8 Guides, News, & Discussion] Pewdeadcake:
hi, i faced the error in root explorer saying that read only file, any solution
[LG G8 Guides, News, & Discussion] marahuan:
You need to flash the engineering abl via QFIL, then enter fastboot and write the fastboot --disable-verity --disable-verification flash vbmeta_a vbmeta.img

and

fastboot --disable-verity --disable-verification flash vbmeta_b vbmeta.img

or try to flash my Vbmeta already patched. As I said, I have lg v500n lgu +

do not forget to make a backup of the native abl. you must restore it after you finish working in fastboot
[LG G8 Guides, News, & Discussion] YoungRexaf:
I tried all the steps, flashing was going well and it did allowed me to change the model from sprint to korean A11, but after reboot it says OPID mismatch!... what's wrong with this? anyone have sprint 20j kdz?

sure I had unchecked sid_a and sid_b
[LG G8 Guides, News, & Discussion] AsItLies:
So sprint doesn't make their kdz available. No one has it, it doesn't exist. As the OP says, if something goes wrong, just redo the entire process, that way you can be 100% u uncheck sid_(a b).

Should note though, some people did run into probs like yours and netmsm indicated to also erase vendor, product, system and boot. That seemed to help others.

cheers
[LG G8 Guides, News, & Discussion] lalo950306:
Hello netmsm, I wanted to try this on my g8x but I keep having this error message about a "sahara" protocol failed. Can you please help me and tell what I'm doing wrong? I share with you a ss of the message.
[LG G8 Guides, News, & Discussion] AsItLies:
The sahara error is very common, there are numerous things that can be the cause. The most likely solutions are 1) use a usb 2.0 port (not 3.0) 2) use a data cable not a thin charging cable 3) try a different computer if possible. 4) Windows driver signature failure.

Here's a link that may be helpful.

cheers
[LG G8 Guides, News, & Discussion] alxmx:
hola soy nuevo en esto y escribo español, podrias ayudarme mi celular es atyt g850um pero la version es g850um10o quiero actualizar ya sea android 10 o 11, me podrias ayudar de como lo lograste.
[LG G8 Guides, News, & Discussion] BOBxibyt:
I initially had all options on LGUP but at some point had only 3 (refurbish. Upgrade and FOTA upgrade) I just went ahead and hit the start button and it went through no mismatch error or something....but the most issue I got is device blinking on and off for a whole while in between the first greet message of "LG V50 Thinq"
[LG G8 Guides, News, & Discussion] netmsm:
Change the attribute of "UI_Config.lgl" to read only for the first issue.

I had no V50 and also I didn't do this on G8 but you can try to flash "vbmeta" on both sides, a and b using the below code (supposed your vbmeta has .bin extension). It may help!

Spoiler content hidden.

Remember to use engineering bootloader. And, you can dump vbmeta from your phone.
[LG G8 Guides, News, & Discussion] BOBxibyt:
no way changed attributes to read-only yet I still have 3 options to choose from
[LG G8 Guides, News, & Discussion] netmsm:
Download "UI_Config.lgl" from requirement and follow preparation then before running LGUP change the attrib.
[LG G8 Guides, News, & Discussion] cuongutc:
Hi. I am using LG V500N LgU+ with imei 0 and ntcode 0. I fixed imei 0 according to the instructions of bro netmsm, now only ntcode 0 so no mobile signal. I changed the vbmeta file for both partitions a and b in mode 9008 but could not overwrite another cust_path_mapping.cfg file.

Do you have a telegram? Help me. Thank you very much.

Sorry, I used google translate to answer you because my english is bad.
[LG G8 Guides, News, & Discussion] netmsm:
Someone has been successful to modify NT-Code this way: Flash Korean A11. Dial *#546368#*500#. Go to SVC Menu > MID Info and change NT-Code.
[LG G8 Guides, News, & Discussion] cuongutc:
I tried changing in MID info but only IMEI can be changed but not NTCODE. So I'm just trying to follow your guide marahuan. If you do it your way marahuan and fix the mobile signal, that would be great.
[LG G8 Guides, News, & Discussion] BOBxibyt:
This is my isssue as of now... i tried the crossflash followed all instructions laid out but ended up bricking my device its a V500N30c-SKT-KR I tried using a V500N30b file to cross flash though I didn't get the option for PARTITION.DL so I just used the refurbish. i finally got all options on LGUP to work (which you gave) and I tried redoing the steps no way still stuck on a blicking screen someone suggested the file is bad and I should flash original rom with same region and code which I did no way (somehow I think the file got corrupted while I downloaded) am getting an A10 file with same region. i pray this works and downgrade me else am F*CKED. plx advice anyone on how to get my device back to live (still got download and EDL mode working) got the firmware from https://lgrom.com/firmware/LMV500N/SKT/V500N30C_00/9310 (hope am not breaking anything posting a direct link)
[LG G8 Guides, News, & Discussion] BOBxibyt:
I finally got it working but device is bricked I think just keeps blinking on and off on the LG V50 logo and does nothing repeatedly. I've tried using stock ROM to flash no way about four of them any help on this
[LG G8 Guides, News, & Discussion] AsItLies:
I'd use this site for your firmware. Also, if you didn't use partition d/l, because it's not available, then you didn't follow all instructions.

the instructions explicitly say that the UI file put in common folder HAS TO BE made READ ONLY. If you do not do that, then you won't have the options needed.

And second, if you're having issues with corrupted files, I'd be sure to use md5 sums when they are available, to verify that the file isn't corrupt. Also, use a usb 2.0 port. Many of these utilities (like qfil) were written a long time ago and aren't designed to work with usb 3.0 ports.

cheers, good luck
[LG G8 Guides, News, & Discussion] netmsm:
Try Korean A9.
[LG G8 Guides, News, & Discussion] Pypy50:
Any update solution for stock LG camera app on Android 11 Korean version LG G8 ?
[LG G8 Guides, News, & Discussion] marahuan:
Тема 'Получение доступа к комбинации восстановления (мод FTM)' https://xdaforums.com/t/getting-access-to-recovery-combination-ftm-mod.4220523/

Well, just in case it might come in handy

All you need is:

Need vbmeta.img from your firmware

1. Install adb on your computer;

To do this, put the "adb" folder from the archive

To drive C to the root.

Unpack and place the adb folder in the root of the C: / drive (you should get C: / adb)

Then we drop vbmeta_a.img and vbmeta_b.img into this folder

2. Activate USB debugging;

Who doesn't know:

In the settings - System - About phone - Information about the softphone and about 7 times per build number. Go back to Settings - System - Developer options and enable USB debugging.

3. Open a command prompt (in Windows 10 this can be done by entering "cmd" in the search, which is located below, next to the beginning)

In the command line, write: "cd c: \ adb"

The result should be the line "c: \ adb>"

You already know how to get fastboot.

We are writing:

fastboot --disable-verity --disable-verify flash vbmeta_a vbmeta.img

and

fastboot --disable-verity --disable-verify flash vbmeta_b vbmeta.img

And there will be access to / product / op
[LG G8 Guides, News, & Discussion] BOBxibyt:
Got it fixed had to use PARTITION.DL check all boxes too and flashed
[LG G8 Guides, News, & Discussion] BOBxibyt:
I wanna attempt the cross flash again. The issue I've got with my V500N30C_SKT_KR is that I can't use a particular carrier (network) which supposedly works on band 3 and band 8 and offers VOLTE was thinking crossflashing to an open rom would help unless of course my stock rom is provisioned to use all bands and no other modifications are needed on that
[LG G8 Guides, News, & Discussion] cuongutc:
It doesn't seem to work with my device, after changing the file cust_path_mapping.cfg but the mobile signal still doesn't work. Thanks for your help, I'll try to find another way to fix it.
[LG G8 Guides, News, & Discussion] ae3502bx:
Hi, guys)

question: is it possible with the help of this tutorial flashing my V50 LMG450PM

(10android, unlocked from Sprint),

into

LMV500N or

LMV500EM (11 android) ?

maybe someone has already done it successfully?

(my experience is small but this tutorial helped me successful flashing g8 att to OPEN_CA)
[LG G8 Guides, News, & Discussion] netmsm:
Crossflash on V50 has been done before. Remember not to do anything except you have made backup.