yashsingh1/xdaforums huggingface dataset:
[LG G8 Guides, News, & Discussion] 10terryo1:
thank you netmsn and as it lies for your patience and contributions. I am trying to preform this magic trick on my lmg820um 20f. unlocked sprint on att network and software i think. anyways when I go to download mode and open LGUP I get a DLL mismatch error and am infgormed I should update with a MSI file that includes the 820um20f. ive searched and am at aloss as I cannot procure a later version ofLGUP_Common.DLL. and my phone is in download mode as I am sending this. anybody ??!!
[LG G8 Guides, News, & Discussion] olaglam:
i was able to flash open ca to my ATT LG G8x thanks
[LG G8 Guides, News, & Discussion] 10terryo1:
update on my last post current rejected software is lm820um21f. which evidently is not in the LG common.dll file and I dont know how to get ahold of a att 21f kdz to pull the lgupc.dll out of it but shjouldnt I be able to pull it with QFIL Partition manager fromwhichever part it is on?
[LG G8 Guides, News, & Discussion] netmsm:
Two things, first, remove any space in path and name of the firehose file, second, have the Qfil open before going to EDL mode and be quick to start partition manager as soon as the phone gets into EDL mode.
[LG G8 Guides, News, & Discussion] dalponis:
You were able to change the NT code as well? I had no luck getting the NT code fixed on my LG G8(820UM).

I'm not sure I understand what you're recommending I try. but I took a stab at it

a) Full backup

1) Use LGUP and this guide to flash my phone in "chip erase" mode and with the ca open firmware

2) You'll get OPID error, so follow this guide again and flash the CA open firmware

3) Do newly provided steps by you, (disable-verity steps on vbmeta and dev qfil)

4) Still can't get the NT Code

I'm interested octoplus LG digital edition, I'll see if that can resolve NT code and edit my IMEI.
[LG G8 Guides, News, & Discussion] olaglam:
I am still seeing the NT code error but it's only when I restart my phone, I thought it was the reason i initially had problem with my mobile data connection after crossflashing but that was because of APN settings
[LG G8 Guides, News, & Discussion] netmsm:
I'm sure that Octopus can resolve such issues. It is done through the process of repairing IMEI which costs 100 credits, about 13$ I think!
[LG G8 Guides, News, & Discussion] dalponis:
I found out that the only listed Canadian dealer apparently, "doesn't do this in house". So that option is out.

"Just put back on AT&T android 10 and sell the phone" seems like a better idea.

Ha, so I got back on AT&T firmware, I fixed my IMEI again, but apparently the nt CODE with "0" is still invalid. and my phone is perma locked.
[LG G8 Guides, News, & Discussion] 10terryo1:
I used key file to delete partitions after vacuum them up booted to download mode and opened LG up LG up says dll mismatch download correct MSI file.I tried every day as hell file I can find as well as making my own and nothing seems to work any ideas. 820 um Sprint on AT& t--
[LG G8 Guides, News, & Discussion] 10terryo1:
The first time LG said BLM this match with my particular model number and software number all other times just said cannot load dll all this happened as LGUP was loaded loading of course. All my drivers are correct the best I can tell. I am wondering if AT&t slipped a Mickey on me with the new 21 series software where my phone won't be detected by the 16 series LG up. I've also noticed that the LG website says to use the 17 series LG up. I am lost and I'm sitting here with my phone half empty wondering if I need to restore restore original partitions.
[LG G8 Guides, News, & Discussion] 10terryo1:
Pork and spell checker forkin spell checker!!!!
[LG G8 Guides, News, & Discussion] dalponis:
I was able to get past the NT code warning. but my phone still says it is perma locked.

My ftm.bin has the correct NT code starting at offset 00014000. When I boot into the ca open firmware, and use the hidden menu, the NT code is still the invalid "0","FFF,FFF,FFFFFFFF,FFFFFFFF,FF", but my phone no longer comes up with an NT code error!

But I still get that grey screen saying my phone is perma locked. [dismiss]
[LG G8 Guides, News, & Discussion] surgemanx:
00014000 is correct like I sent you with the ftm copy.But,it's embedded in the chipset it's been changed in the past.That's where the permalock is coming from.So far,I haven't found a way around it as of yet.Like I said,we're doing it with the V60 and it has the same error so far.
[LG G8 Guides, News, & Discussion] netmsm:
Is your phone network locked? Or, has been network locked and now it is GSM unlocked?
[LG G8 Guides, News, & Discussion] dalponis:
It wasn't network locked when I got it. I've been using it on public mobile. I'm not exactly sure what's going wrong with it now.
[LG G8 Guides, News, & Discussion] netmsm:
Use my modemst partitions; may you get the phone working.

1. Create backup of your modemst1, modemst2, fsg, fsc and ftm.

2. Erase modemst1, modemst2, fsg, fsc and even ftm.

3. Crossflash to Korean 11 (one I suggested previously).

4. Restore the attached mdmst to modemst1 and modemst2.

5. Try a SIM and if it doesn't throw the perm.error so you can go for editing NT Code otherwise restore the attached ftm.

By restoring these files the phone shouldn't give that perm error. But I don't know if you can still modify NT Code and IMEI :unsure:
[LG G8 Guides, News, & Discussion] Guille05:
I tried to crossflash my G8X to the US Open A11 software and screwed up quite badly during the process. I've had to restore my phone from having no partitions and do not have the original LUN5 files, only the 7 required for the crossflash. I've also rooted and installed twrp on this device so if anything that could help needs that I'm able to use it.

I expected the fingerprint sensor not to work, however now the light sensor, accelerometer, gyroscope, magnetometer, etc. don't work either.

Is there something I can do to get this functionality back? I've mostly given up on fixing the imei and network issues but I would like to at least have the phone in a usable state on Wifi.

If more details are needed please do tell and I will do my best to provide them.
[LG G8 Guides, News, & Discussion] netmsm:
There's been much talk about repairing IMEI and NT Code to solve network problems in this thread.
[LG G8 Guides, News, & Discussion] Why So Serious:
hey @reachforthesky, thanks for the reply, I followed the wish30 guide, and same as you I loaded multiple MBNs making TMO active as couldn't pull European ones (before it was only AT&T loaded)

so far going more than a week and didn't have any issues, got back the internet during calls due to the VoLTE and receiving all calls so far not that I had that many but still 100% :D

Cheers and thanks again!
[LG G8 Guides, News, & Discussion] Guille05:
Thanks for replying. I know it's been discussed and while I haven't tried all of the fixes quite just yet it seems to me that for most of them to work the original LUN5 files are needed or the original IMEI, neither of which I possess. But we'll I've come to terms with having it as a wifi device so if that can't be fixed it's not too big of a deal. What worries me more is most of the sensors not working, any chance you know what to do about that? I haven't seen anyone with a similar problem in reading the guides here on xda.
[LG G8 Guides, News, & Discussion] netmsm:
It's bizarre! I've never heard that such problem may occur because of deleting partitions or losing LUN5.

Not necessarily. Read previous talks carefully.
[LG G8 Guides, News, & Discussion] Guille05:
Alright I'll keep trying, for now I left the phone with a repair shop while they try to get the imei back with one of those remote services I imagine. If that doesn't work then I guess I'll just have to keep tinkering and see if it's possible to recover the functionality. Thanks for the responses.
[LG G8 Guides, News, & Discussion] tofik33`:
Hi.

Trying to crossflash V500N to V500EM and getting an error... Is there any solution?
[LG G8 Guides, News, & Discussion] gunnerone007:
I've cross-flashed my AT&T variant G820UM20x to be a G820QM with the NAO_US_OP firmware. I'm having issues getting VoLTE working with my T-mobile MVNO. I followed the guide here: https://xdaforums.com/t/guide-no-ro...ther-qualcomm-powered-lg-devices-too.4343655/ to make sure my phone has T-mobile. I also messed around a little with the Universal Enabler. But I still don't seem to have VoLTE support. Any suggestions of what to try? After cross-flashing I don't have the checkbox in settings to enable/disable VoLTE, should I?
[LG G8 Guides, News, & Discussion] AsItLies:
You shouldn't have to do anything additional to get volte with a t-mo mvno and having the Us_op rom.

I've done that and it works right out of the box. You might consider looking in the SVC menu, there may be switches to turn volte and vowifi on in there, but I think they should be on by default with that rom.

have you done other mods to that device? It is network unlocked right? crossflashing will NOT network unlock it.
[LG G8 Guides, News, & Discussion] netmsm:
Did you follow all steps and get the error? If no, go back and do as instructions say; If yes, redo all steps in addition to creating backup and erase these partitions on both sides: vendor, product, system, boot.
[LG G8 Guides, News, & Discussion] tofik33`:
Thank you for your answer.

Yes, I've done all the steps like in your guide.

Ok, I will give it a try today in the evening and post results.
[LG G8 Guides, News, & Discussion] gunnerone007:
I just did the cross flash again, with the G820QM30c_00_NAO_US_OP_0103 firmware. VoLTE still isn't working. I'm getting the nt-code error on startup.

I don't see anything that looks relevant in the SVC menu.

No I haven't done any other mods. Yes it's network unlocked. Data and normal calling works, I'm just worried calls will stop working when 3G is turned off if I don't get VoLTE working.

I don't have options to turn VoLTE on or off in the settings.

Would flashing the G820TM (T-Mobile) firmware be worth trying? Or going back to the original AT&T firmware?
[LG G8 Guides, News, & Discussion] tofik33`:
UPDATE: I was able to flash the kdz file, but unfortunately I get OPID Mismatched error and bootloop... What can I do next? Can I flash original firmware with LG UP? If yes, what option should I choose? Upgrade? Refurbish?
[LG G8 Guides, News, & Discussion] Surgemanxx:
Refurbish if you're going back to a stock rom.
[LG G8 Guides, News, & Discussion] AsItLies:
I wouldn't flash t-mo rom, you end up with all the bloatware, and, the us op should work.

Just re-checked and for me also, only setting in svc is to turn vo-wifi on, have you done that? does it work?

My mvno is mint mobile. I didn't have to do anything to get volte, that just worked. Did have to turn on vo-wifi in svc and also on mint website had to indicate on account I wanted vo-wifi. Then it worked.

maybe check with your mvno to verify it should work?
[LG G8 Guides, News, & Discussion] tofik33`:
Worked, thanks. Guess I need to wait until there will be functional guide for V50 :(
[LG G8 Guides, News, & Discussion] Surgemanxx:
It should work fine with v50 as well.They're all the same chipsets,so it shouldn't be an issue.
[LG G8 Guides, News, & Discussion] luislasonbra:
English

Hello, when flashing I realized that the gyroscope is inverted, when the device is vertical for unknown reasons the screen is displayed horizontally, the same thing happens in the opposite way.

Any suggestions or help to fix this problem?

NOTE

I have installed several "KDZ" and this happens in all of them.

Spanish

hola, al realizar el flashing me he dado cuenta de que el giroscopio esta invertido, cuando el dispositivo esta vertical por razones desconocidas la pantalle se visualiza de manera horizontal, lo mismo pasa de manera contraria.

alguna sugerencia o ayuda para corregir este inconveniente?

NOTA

he instalado varios "KDZ" y en todos pasa esto.
[LG G8 Guides, News, & Discussion] Guille05:
While I didn't have that exact issue, when trying to crossflash all of my sensors didn't work, including the gyroscope. I believe it's due to some error when flashing the different roms, the way I managed to get my sensors back in working order was to do a complete flash erase, and then restored my partitions from zero. However be very careful when doing that and make sure to make a complete backup. I didn't need to be so careful as my network and all that already didn't work, but if the gyroscope is your only problem don't try anything without having backed up every single partition on your phone as it currently is.
[LG G8 Guides, News, & Discussion] luislasonbra:
English

Hmm, I have no idea why this happened but I've flashed "KDZ" several different times and the gyroscope issue still persists.

How would I do the "doing a complete deletion of the flash" is it by "QFILE" or by "LGUP"?

Spanish

mmm, no tengo idea de porque pasó esto pero he flasheado varias veces diferentes "KDZ" y aun sigue el problema del giroscopio.

como haría el "haciendo un borrado completo del flash" es por "QFILE" o por "LGUP"?
[LG G8 Guides, News, & Discussion] Guille05:
While it may be possible through lgup, I don't know how to do it. I did it through QFIL, just make sure to make a complete backup of your LUNS (follow netmsm's method) in case anything goes wrong. Also when deleting the flash, don't erase the GPT or your partition manager will be blank and you will have to do extra work to restore it.
[LG G8 Guides, News, & Discussion] Bxhxl:
Hi.

I have a problem. I cant do cross flash with my LG G8X Sprint. I erase boot a/b, OP_A/B, system_a/b, vendor a/b, modem_a/b, sid_a/b, product_a/b but, when I triying to use LGUP, instant I flash, I have the error 0x6004 CrossDL TOS_US>whatever rom Im triying to installl. I am really sure that I am following the steps to the letter. IDK whats happen with my cell. I tried to reload the backup several times but I dont have good results.

Anyone can help me?
[LG G8 Guides, News, & Discussion] tofik33`:
I've succeded in cross flashing yesterday. Additional things I had to do was erasing partitions mentioned by netmsm (vendor, product, system, boot) and another thing was unchecking sid_a, sib_b, abl_a, abl_b when flashing the ROM with LGUP.

No OPID Mismatched error anymore. Only a warning after reboot that says "Current version is not available for user. Can't find matched carrier. Check NT-Code: 0". I will try to resolve it later.

Finally I have fully translated android system, no U+ logo when booting, no U+ settings or non-removable apps, ability to silnce camera shutter.

The little differences I've noticed so far:

- No VoLTE option (however, I do not suffer from it as I didn't notice any difference in call quality although my carrier supports this technology).

- No FM Radio app pre-installed, but I downloaded it from web and the radio works well.

- When I turn off airplane mode it takes almost 10 second to connect to WiFi! On Korean ROM it connected almost instantly.
[LG G8 Guides, News, & Discussion] Ratty696:
Mine says id: 0. And I don't get message "would you like to change model " no matter what I try to flash it will not work for my sprint g8x or cad g8x
[LG G8 Guides, News, & Discussion] animo214:
Thank you OP for the great tutorial,

but I just wanna be sure before going through..

I'm currently running Android 12 V500N40b_00_SKT with bootloader unlocked

Is it possible to crossflash to, say, UK V500EM30c android 11 ?

Do I need to do some extras since it's a roll back or it doesn't matter and just go with the tutorial ?

Thank you very much in advanced! :)
[LG G8 Guides, News, & Discussion] netmsm:
Hi,

Erasing boot, vendor, product and system should be done as a part of the whole process. So, redo the entire guide in addition to erasing those partitions.

Don't forget to create backup.
[LG G8 Guides, News, & Discussion] netmsm:
I've done this many times on LG G8 without any issue but on V50 I didn't. You may give it a go, however create backup before going for crossflash.
[LG G8 Guides, News, & Discussion] animo214:
-------RESOLVED-------

I'm getting this error, SID_A and SID_B unchecked. any idea sir ?

DONE SUCCESSFULLY!

Thank you once again OP! More powers to you :)

I've rollback to KR_OP 30e first, then cross flashed to UK EM30c ..

and I'm still testing as of now if everything worked out, issue as of now is blank SN..

but it's not that important I guess?? lol.

will update soon!
[LG G8 Guides, News, & Discussion] Bxhxl:
Thx for the answer.

Yes, I released the guide several times and I have the same problem. This is strange for me 'cuz I've seen many tutorials and anything has my problem.

Can I will post SC of my steps process?
[LG G8 Guides, News, & Discussion] AngryMark:
Hello.

I have done something stupid with my V500N.

First of all, a month ago i unlocked bootloader and installed PE+. Fastboot says that my device is G850 and have no Download mode.

Now, i wanna to switch back to stock.

Flashed back through QFIL my backup abl,boot,laf.bin's, but only one that changed - is not working correctly Fastboot with device name V500N and still no Download mode.

After that, i flashed back abl_a.bin from bootloader unlock guide and have fully working G850 fastboot again.

But i need stock and download mode...

So, my stupid head decided to follow unbrick guide.

And i flashed everything. Got download mode. Than tried to flash my KT korean kdz by LGUP. But it's refuses to flash, what surprise me, saying that there is crossDL error. Okay. Than i tried to flash by QFIL again my backup files and.. Now it's saying OPID Mismatch and i really scared don't know what to do.

I just wanna korean stock be back...

As i understand - now i need partitions from this kdz to flash them back, because i flashed V450 files. But where to get them? Tried KDZTool, it unpacks, but there is no any abl, boot, laf files.

P.S. I had G2,3,4,5,6 and V30. They are super easy to flash. Why V50 and modern phones becomes so hard to flash...
[LG G8 Guides, News, & Discussion] hooutoo:
Afternoon

Looking for a little info. I have a lmv450pm (sprint v50) and as most of you are aware this phone nolonger works in the US. I also have a complete Berkler backup of the phone so I can immediately return to stock if needed. I just installed Lineage 19.1 (a12) and the phone is up and running fine EXCEPT, as usual when I slip my Google Fi (Tmob mvno) sim in it absolutely won't log on to the network. Somehow the Tmob crew have blocked all Sprint v50. I have other phones so I'm not in any hurry but was thinking there must be a way to fool the Tmob network into thinking that this is a G820TM or any other model of the LG G8. As most of you are also aware this phone shares a common Qcom chipset (sm8150) so I'm hoping that the radios aren't to different? Yes, I know that the Sprint v50 is a 5g phone and the G8 not so much but am hoping that is won't kill my experiment.

Any help would be greatly appreciated and thanks in advance.
[LG G8 Guides, News, & Discussion] Surgemanxx:
Have you tried crossflashing to the Verizon version of the V50?It's not the fact they're blocking the devices,it's they're blocking custom firmware from being used.It's the same as AT&T has done when they shut down 3g service.It's possible the radios may work,but highly doubt it since it's a different chipset version.
[LG G8 Guides, News, & Discussion] Bxhxl2:
Hi. I replayed this for my secondary account.

I was able to fix my problem with this. I hope I can help.

Apparently the Sprint software didn't allow an update from 10 to 11, I don't know why, but that's what happened to me.

What I did was install an Android 10 rom but from another country. I installed a version from Germany with android 10.

When I resumed wiping the partitions and went to LGUP, the flashing went perfectly. I didn't lose signal.

Now I applied the process but for an Android 11 KDZ of the same nationality, and I am happily writing the solution from the cel with A11.

Remember make a backup of your partitions.

I have a LG G8X.

Spanish

Pude solucinarlo.

Al parecer el software de Sprint no permitía una actualización de 10 a 11, desconozco el por qué, empero así me sucedía.

Lo que hice fue instalar una rom de Android 10 pero de otro país. Yo instalé una versión de Alemania con android 10.

Cuando reanudé el borrado de las particiones y me fui al LGUP, el flasheo pasó perfectamente. No perdí señal.

Ahora apliqué el proceso pero para una KDZ de Android 11 de la misma nacionalidad, y estoy felizmente escribiendo la solución desde el cel con A11.

Espero y sirva de algo.
[LG G8 Guides, News, & Discussion] netmsm:
:unsure:

Redo the whole process and erase these partitions too: p_persist_lg, persist, persdata, metadata, userdata. Create backup of all partitions except the "userdata".

The phone must get into download mode right after restarting from EDL mode, so as soon as it restarts hold the vol+.

Yeah, sure.
[LG G8 Guides, News, & Discussion] netmsm:
Security reasons, maybe!

Have you tried crossflashing via this thread's method, instead of flashing with QFIL?
[LG G8 Guides, News, & Discussion] animo214:
Thank you very much for answering kind Sir. :)
[LG G8 Guides, News, & Discussion] netmsm:
Glad to help =)
[LG G8 Guides, News, & Discussion] tofik33`:
Did anyone notice weaker LTE signal after crossflashing? Like I wrote before, I changed from Korean ROM to European ROM and now my LTE signal is usually 2/5 indoor... I flashed again Korean ROM and signal is almost full, usually 4/5 or 5/5.
[LG G8 Guides, News, & Discussion] AsItLies:
This is actually pretty well known. The kor rom displays more bars, but the signal is the same. Find in your settings the info indicating the db of the signal strength, it may be in SVC menu, forget where it is. But you'll find it's no different.
[LG G8 Guides, News, & Discussion] tofik33`:
Hmm, I'm not sure if it's just a visual difference. The signal is -105 db / 35 asu in my V50 and I have another phones with me (same carrier) and one has -94 db / 46 asu and another one 95 db / 45 asu.
[LG G8 Guides, News, & Discussion] AsItLies:
Comparing diff phones won't help as yer saying it's the rom. So you would have to compare db of one rom with other rom, on same phone.

my take is basically; does the phone still connect and make calls? does it drop with one rom and not the other? If the answer is; it's fine just a low signal indicator, then don't worry, everything is fine.
[LG G8 Guides, News, & Discussion] AngryMark:
Thanks for reply.

Crossflash method is dangerous due to ability to lose IMEI/SN if there is no backup files if something will go wrong. As i understand, also after that the NT Code error will pop up and you will need to do something with it. And there is replies that this method also degrades network signal, so...

So, i found another solution.

My best friend have same V500N variant, so i connected his phone to QFIL, dump all necessary files from it one to one with original unbrick guide files list, used the same XML files from that guide and flash all of this to my phone trought QFIL (load xml and press "download"). Now the phone is fully working as it was before! Yay!

Maybe i will post my guide and all files for fully unbrick V500N.
[LG G8 Guides, News, & Discussion] Surgemanxx:
As long as you don't modify anything in the LUNS5 partition group,you won't lose your IMEI.In any of these guides,it clearly states to always make a full backup before you attempt anything if something goes wrong.
[LG G8 Guides, News, & Discussion] animo214:
noticed the same thing, but when I tried to browse and do speed test ..

my v50 (kr crossflashed to em) 3/5 bars signal got 50+ mbps speed

compared to my v35(kr stock) 5/5 bars 20+ mbps speed.

these results were the same before crossflashing my v50 having 5/5 bars.. so I think, yea maybe it's just a visual bug or that the kr roms are just showing full bars even though it's supposed to show less.