yashsingh1/xdaforums huggingface dataset:
[LG V30 Guides, News, & Discussion] orangewaldo:
hanging head in shame

i just printed the shipping label from LG. Now i just have to deal with the ballbusting for not knowing better.

Cross another possibility off the list. Dont do this flash.
[LG V30 Guides, News, & Discussion] ChazzMatt:
Yeah H932 T-Mobile is the odd man out. A few people in this thread have bricked their phones trying to flash from it or to it.

That's why the bootloader unlock in the WTF thread won't work with T-Mobile H932. It has different encryption keys or something.

Yet the H932PR works. It's Puerto Rico and apparently doesn't share the same keys as H932...
[LG V30 Guides, News, & Discussion] jcsww:
I have seen a few posts where people have flashed to H933 and then back. I haven't tried but has anyone successfully flashed an H933 to US998 or even H931?
[LG V30 Guides, News, & Discussion] ChazzMatt:
Yes all those were successful. The WTF thread is about H931. That's the phone [MENTION=6158380]TxanMoe[/MENTION] has and the phone [MENTION=3167089]runningnak3d[/MENTION] has ordered.

He went from AT&T H931 through AS998, US998, Canadian H933 and then bricked on European H930 -- recovered and found he had unlocked his bootloader. (We initially thought that was the magic step for bootloader unlock, but it wasn't. There's no need to flash H930. Instead you make a fake unlock.bin code, run it, it will show fail, but still unlock your bootloader. It just has to be the right size.)

But H932 T-mobile will totally brick with 9008 error if you try to flash another variant over it.
[LG V30 Guides, News, & Discussion] jcsww:
I have been following that thread loosely. I have spent the bulk of my time in the Samsung S9 forum here and have been cross-flashing those for friends and family that have them. I have found the current state of ODIN and Samsung devices to be very simple by comparison to the V30, so my H933 has sat neglected on my desk. :P
[LG V30 Guides, News, & Discussion] lafont28:
Just to make sure I'm understanding correctly I have to flash US998 to the VS996 I have now before I can attempt the bootloader unlock?
[LG V30 Guides, News, & Discussion] ChazzMatt:
You can try flashing the test.bin file on your current firmware. That's what unlocks the bootloader. Watch the video. It says it fails, but then the bootloader is actually unlocked.

At first we thought it was because he flashed H930, but that's not it. It's the fake unlock.bin file. He first used a Huawei M8 unlock code which was crazy. Then he just made one by typing about three rows of "1" into a text file and changing the extension to .bin. His

video

proves that works.
[LG V30 Guides, News, & Discussion] lafont28:
Yeh I saw the video, I just wasn't sure which firmware he was on in it. I'll give it a shot though. Thanks [MENTION=3250376]ChazzMatt[/MENTION]!!
[LG V30 Guides, News, & Discussion] JWnSC:
Right, using lg up dump option.

Flashed from twrp recovery using adb on computer.

First copy modem, modemst1,modemst2 to phone internal storage. Make sure to add .bin extension (ex. modem".bin" without quotes)

Adb shell

dd if=/sdcard/modem.bin of=/dev/block/bootdevice/by-name/modem

dd if=/sdcard/modemst1.bin of=/dev/block/bootdevice/by-name/modemst1

dd if=/sdcard/modemst2.bin of=/dev/block/bootdevice/by-name/modemst2

I also did the system.bin the same way using dd command(if you do the system this way it takes a long time..)

Please note this is NOT needed unless your phone IS active on SPRINT. I had issues with lte, the above fixed it. I now have full fastboot, decrypted,rooted Sprint stock rom, and unlocked bootloader.

[MENTION=6158380]TxanMoe[/MENTION] walked me through it on telegram be sure to thank his post
[LG V30 Guides, News, & Discussion] jcsww:
This does sound useful though as a possible way of flashing carrier specific modems to the US998 model firmware. Maybe someone can dump the T-Mobile modems and someone can try flashing them to a V30 with a US998 firmware to see if band 71 is enabled.
[LG V30 Guides, News, & Discussion] ChazzMatt:
He was on the US998, but only because his H931 AT&T LG V30 can't get Oreo. So he used this Frankenstein method (US998/AS998/Canadian H933)to flash to other variants to get Oreo, then tried flashing to other variants to get root.

We told him it couldn't be done, and then he did it. Go figure. He even flashed a Huawei M8 unlock.bin code which said it FAILED, but it REALLY succeeded. So, now you just have to make your own unlock.bin code file as anything will work as long as it's the right size. It will say it failed when you flash it but then when you reboot and run the getvar all query, it's unlocked and you can flash TWRP and root.

Yes, it's all crazy.

Someone who flashed LS998 to US998 to carrier unlock and remove bloat has also done this bootloader unlock and root -- so it's not just the AT&T H931. This person has also re-flashed their Sprint modems so now they have Sprint service again on their bootloader unlocked, rooted, TWRP "US998".

---------- Post added at 07:50 AM ---------- Previous post was at 07:33 AM ----------

AT&T H931 to Oreo

You can use the

Frankenstein method

to convert the H931 phone to US998, AS998 or Canadian H933. US998 would be the best bet as there will be future updates readily available.

In the

WTF thread

-- which is an offshoot of the Frankenstein thread -- the [MENTION=6158380]TxanMoe[/MENTION] started off with that process with an H931 just to get Oreo on his phone, and then ended up bootloader unlocking his phone and rooting it. All stuff discovered by accident AFTER he got Oreo on his H931.
[LG V30 Guides, News, & Discussion] jcsww:
You might want to correct that typo to save possible confusion. The Canadian model is the H933.
[LG V30 Guides, News, & Discussion] ChazzMatt:
Thanks. Think I got them all. Typing too fast.
[LG V30 Guides, News, & Discussion] cloud1250000:
Can i do this with the canadian variant?? (H933)

Really want that bootloader unlock aha... If not i'll go with the ls998 i guess..
[LG V30 Guides, News, & Discussion] ChazzMatt:
Should be able to, yes. You just used patched LGUP to convert H933 to US998.
[LG V30 Guides, News, & Discussion] cloud1250000:
Perfect thx! I'll grab the h933 this week :)

(upgrade from a locked down lg g5)
[LG V30 Guides, News, & Discussion] frikisama:
Thanks for all the information!

Quick question for those of you who have done this on a H930DS or any other (?) dual SIM variant: do both SIM slots still work? Do they still have their previous, valid IMEI after crossflashing? (Obviously not on a H930 FW since that one doesn't have support for it AFAIK, I mean if you flash back to the dual sim FW)
[LG V30 Guides, News, & Discussion] JWnSC:
You might just be able to swap build.props. not sure tho you would have to test
[LG V30 Guides, News, & Discussion] Mad Medik:
Please advise if you have any unexpected problems. I will be trying this next week when I have a couple days off.
[LG V30 Guides, News, & Discussion] tyrich30:
Is anyone else having a issue, trying to get the fastboot command to work on VZW LG V30? My phone just reboots like normal.
[LG V30 Guides, News, & Discussion] jcsww:
That is what the H933 does as well. You need to flash to US998 to get fastboot commands.
[LG V30 Guides, News, & Discussion] Septfox:
Flashing H932 to other devices and vice-versa is a guaranteed brick because the CPU contains an RSA key that is different from the other variants. This key is checked against the hash of the important partitions, if it doesn't match, depending on what you flashed it can mean a soft brick or an 8008 brick.

iirc, there are a couple of partitions that aren't compared once you unlock the bootloader, but the majority are locked down. I THINK this includes the modem, which is why you can't just turn a US998 into an unlocked H932.

Other US variants use a common RSA key for whatever reason, that's why you can cross-flash; as far as the check is concerned you're loading legit software for that phone.

paging [MENTION=3167089]runningnak3d[/MENTION] to make sure I'm not babbling nonsense/speading misinformation.
[LG V30 Guides, News, & Discussion] ChazzMatt:
What "fastboot" command do you need for this Frankenstein thread? You don't need fastboot to convert to US998. You need patched LGUP, maybe just regular LGUP. This is the

post you want to read.

Just put in "VS996" in your mind every time it says "LS998". It will work for any North America LG V30/V30+ phone -- except T-mobile H932.

Once you get US998, then you have fastboot flash commands. ;)

Then you can unlock the bootloader using the WTF method, install TWRP, root.

Then you can flash back whatever you need of the Verizon V30, like modems, etc (in case any bands are missing):
[LG V30 Guides, News, & Discussion] Mad Medik:
Disregard, Chazzmatt you answered in post 231 the question to another user while I was typing mine.

:)
[LG V30 Guides, News, & Discussion] ChazzMatt:
ALL except T-mobile H932 (you said Sprint).

Yes, this works with all North America variants, except T-mobile H932.

But for North American variants to convert to US998 Oreo you first have to flash US998 Nougat, even if your variant (Canadian H933, Sprint LS998, AT&T H931, Verizon VS996, etc) is already on Oreo. Doesn't matter.

DL partition flash in dev patched LGUP to Nougat US998, then Master Reset, and "upgrade" in LGUP to Oreo US998. You now have:

1) fastboot flash commands

2) Oreo with the bootloader unlock flaw.

That's a WINNING combination.

Both the US998 Oreo and European H930 Oreo have the fastboot flash commands and boot loader unlock flaw. That's why you need one of those. North American variants would use Oreo US998 and the rest of the world would use H930.

The rest of the world does not have to downgrade to Nougat first to flash European H930 Oreo. I don't know why, we just know what works. I tried to skip that step, and I had bootloops until I first flashed Nougat US998, THEN upgraded to Oreo US998.

WARNING: If you have North America variant, do NOT try to flash the European H930. You will brick your phone. Not as bad as the T-mobile H932, but still you will have a bad day. [MENTION=6158380]TxanMoe[/MENTION] did that while discovering this entire process, and [MENTION=3167089]runningnak3d[/MENTION] had to help him recover. Do NOT do that.

North America variants stay with North America US998

Europe/Mid-East/Asia/Pacific stays with Europe H930.
[LG V30 Guides, News, & Discussion] jamesd1085:
Chazzmatt you are a sprint user right...how did you get your sprint modem back...us998 modem is giving me weak signal
[LG V30 Guides, News, & Discussion] ChazzMatt:
No, I'm an AT&T user. I bought mint V30+ LS998 because it was dirt cheap.

But Sprint user [MENTION=2732656]JWnSC[/MENTION] who did this reflashed Sprint modem to get Sprint LTE bands. Let me find the post or he can answer....

Here you go:

__________

Sprint user [MENTION=2732656]JWnSC[/MENTION] wanted his Sprint LTE bands 26 & 41 back after he converted his LS998 to US998, then bootloader unlocked and rooted it...

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] jamesd1085:
I looked for a while with no finds...i figured i would need the modem...i was almost hoping i there was no fix so i didn't feel like a d**k for not looking til i found it...lol...i hate having to ask questions if the answer is already here somewhere
[LG V30 Guides, News, & Discussion] ChazzMatt:
Sprint user [MENTION=2732656]JWnSC[/MENTION] wanted his Sprint LTE bands 26 & 41 back after he converted his LS998 to US998, then bootloader unlocked and rooted it...
[LG V30 Guides, News, & Discussion] jamesd1085:
Whoops...failed to partition dump my phone...i need to find kdz or try to pull a sprint modem somehow
[LG V30 Guides, News, & Discussion] jcsww:
Is there a collection of everything we need to do this cross-flash in one place? Perhaps a Drive or something that has everything for the American V30's and another for the EU/Asia V30's that contain all needed factory images, LG Up with patch, modem dumps, etc.
[LG V30 Guides, News, & Discussion] Moriatier:
kinda lagging behind... What is the bootloader unlock flaw you guys are talking about? Can we unlock the BL and get root after turning a non-us998 variant into a Frankenstein?
[LG V30 Guides, News, & Discussion] JWnSC:
Here is the Sprint Oreo modem.bin https://drive.google.com/file/d/1GJJVxgjt4k8SdSVocbw-nLLc8eruDLYv/view?usp=drivesdk
[LG V30 Guides, News, & Discussion] jamesd1085:
how to flash though...gives errors
[LG V30 Guides, News, & Discussion] JWnSC:
You have to use adb while in twrp recovery from computer to flash it(I'm guessing your trying to flash from fastboot)
[LG V30 Guides, News, & Discussion] jamesd1085:
Tried partition dl in lg up...how do i flash in twrp with adb...not inexperienced but that's new territory to me...can i do it directly in twrp?
[LG V30 Guides, News, & Discussion] BobAzzon:
Delete
[LG V30 Guides, News, & Discussion] JWnSC:
Make sure the modem.bin is on the root of your phone storage

Reboot to twrp recovery, plug phone into computer, open cmd, type adb devices, make sure your device is listed.

Type(without quotes) the following commands..

"adb shell"

"dd if=/sdcard/modem.bin of=/dev/block/bootdevice/by-name/modem"
[LG V30 Guides, News, & Discussion] tyrich30:
Thanks for the help. Looks like I installed TWRP on VZW V30. The problem I notice is that when I make a call I lose my 4G icon. Do I need to install the VZW Oreo modems? Does anybody have the files? Thanks
[LG V30 Guides, News, & Discussion] ChazzMatt:
Yes. LG Oreo has a MAJOR bootloader unlock flaw. But to run the command you need fastboot. We've solved that too. You either convert your phone to US998 (for North America variants) which this thread covers or convert to European H930 for the rest of the world.

Yes, for North.America variants (except for T-Mobile H932) you convert to Oreo US998, unlock the bootloader. For rest of the world, European H930 Oreo and unlock the bootloader.

It's Oreo that has bootloader unlock exploit, but you need fastboot flash commands.

It's all

written up and documenter in the WTF thread

. < That's my write-up. All credit goes to [MENTION=6158380]TxanMoe[/MENTION] for discovering this.

We made XDA NEWS yesterday.

Android Oreo update for the LG V30/V30+ accidentally allows unsupported models to unlock the bootloader

https://www.xda-developers.com/lg-v30-bootloader-unlock-android-oreo/

(The only thing he got wrong was it's NOT a Huawei M8 bootloader unlock code we are using. [MENTION=6158380]TxanMoe[/MENTION] has made a better one, that's just the first one that worked. That's what clued us in that this was a GREAT bootloader unlock exploit if even a Huawei M8 unlock code could unlock the bootloader.)

---------- Post added at 06:50 AM ---------- Previous post was at 06:32 AM ----------

For the most part yes. My

write up with clear instructions in the WTF thread

includes the "fake" bootloader unlock code [MENTION=6158380]TxanMoe[/MENTION] created that will unlock the bootloader. That post also has links to the KDZs, LGUP, TWRP, Magisk, and all other files you need to flash. You just need to read that post. ;) You're sort of in the middle part right now in this thread. That

other post answers all your questions already.

When you finish you will have a bootloader unlocked, rooted phone with TWRP. However it will either be a US998 or European H930. If US998, here's the bands you will have:

http://www.lg.com/us/cell-phones/lg-US998-Silver-lg-v30

US998

CDMA: 800 MHz CDMA

2G GSM: 850/900/1800/1900 MHz

3G UMTS (HSPA):850/900/1900/2100 MHz

4G LTE Bands: 1/2/3/4/5/7/12(17)/13/20/25/66

They WILL work. But for Sprint users there's a couple of Sprint bands not on that list. Thus they may wish to flash Sprint modem. [MENTION=2732656]JWnSC[/MENTION] is your guy for that. I can quote him, but he's the one who has done it.

At least one Verizon user thought he wanted to do the same, just to make sure he had all that Verizon variant had. However, he said he flashed back to US998 modem as that actually worked better.
[LG V30 Guides, News, & Discussion] runningnak3d:
It is a 9008 brick, but other than that, you nailed it :)

Something to add .. xbl, and abl have to be compatible. There are times that even though they have the same RSA key, they won't work together and you get a 9008.

So for example, (and this is JUST an example. I have no idea if this is true or not for these models), if you took a US998 abl but had a LS998 xbl you could have a brick. Or if you used a Nougat xbl with an Oreo abl, you could have a brick.

It is always best to make sure that your xbl matches your abl.

-- Brian
[LG V30 Guides, News, & Discussion] jcsww:
Would you mind adding your links for the Nougat US998 firmware to that? It just saves tracking down your other thread, which slowly seems to be slipping further down the list of active threads.
[LG V30 Guides, News, & Discussion] ChazzMatt:
Thank you, very good idea.

I just added the

links to the Frankenstein post

for both the Nougat and Oreo US998. Only the North America variants need either of those, and only the the North America variants need the Frankenstein method. So, in the

WTF post

(master instruction list for bootloader unlock and root) when you click on the

Frankenstein link

, those KDZ with LGUP are now linked in that post.
[LG V30 Guides, News, & Discussion] ChazzMatt:
NOTE: For Canadian H933 to convert to US998, [MENTION=5015107]cre4per[/MENTION] says you have to use DL Partition for both stages (Nougat and Oreo KDZ):
[LG V30 Guides, News, & Discussion] ChazzMatt:
You should be able to use the patched LGUP file and DL PARTITION using the H933 KDZ. Be sure to Master Reset afterwards.

https://www.reddit.com/r/lgv30/comments/89l0dt/h933_oreo_kdz/
[LG V30 Guides, News, & Discussion] suzook:
Need help getting my ls flashed. It wont open the patched lg up. Please help
[LG V30 Guides, News, & Discussion] ChazzMatt:
You installed LG drivers?

You went into Download mode BEFORE opening LGUP?
[LG V30 Guides, News, & Discussion] suzook:
Yes, uppercut opens fine, but the patched one here says something about .dll for ls998
[LG V30 Guides, News, & Discussion] ChazzMatt:
Don't use Uppercut. Use patched LGUP. Uppercut doesn't work on Oreo.

You're using the patched LGUP from the post where I attached it?

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] suzook:
Yes, and it says cant load lgup model com
[LG V30 Guides, News, & Discussion] ChazzMatt:
Tell me you are in download mode BEFORE opening the patched LGUP file.

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] suzook:
i am

Upercut sees my phone though

I have installed uppercut, and the lgup store

It shows in device manager too
[LG V30 Guides, News, & Discussion] ChazzMatt:
You can't use Uppercut. Uninstall uppercut. Reinstall the patched LGUP. Make sure it's the patched LGUP.

Reinstall LG drivers.

Change USB port.

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] suzook:
your lg file doesnt intall. It just runs

Sorry, i am a samsung guy. New to lg

Do i install "official" lg up, then replace the files??? Im so confused
[LG V30 Guides, News, & Discussion] ChazzMatt:
Go to post #1 of this thread:

https://xdaforums.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076

Download only the patched LGUP file. Don't try to use other dll files, and for this you're not using Uppercut.

If that doesn't work, try a different computer?

Everyone else can do it, I don't know what to tell you.

This is LS998 right?

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] TheLizardMonkey:
get back lte

Yesterday I Frankensteined my LS998 V30+ on Sprint to Us998. Only when I was done did I realize that the LTE bands werent functioning properly. To use this method, is there a way that I can amend my current already rooted system or do I need to reset it to the stock sprint LS998 rom and go from there? If the later is the case, where in the regular method do I do the steps you mentioned?
[LG V30 Guides, News, & Discussion] suzook:
Ls, we bought from same seller on ebay. Tried diffeent computer, NO GO. WTF??? Its running 7.1, is that my isssue?? Should I ota to oreo?
[LG V30 Guides, News, & Discussion] ChazzMatt:
Hmmmm... my second LS998 came last night and it still has Sprint Nougat. I'll try it tonight. Didn't have time last night.

My first LS998 which I converted successfully had Sprint Oreo.

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] TheLizardMonkey:
When you converted your first one, were you able to keep your LTE? I converted my sprint LS998 to US998 successfully with root but lost access to LTE bands.
[LG V30 Guides, News, & Discussion] ChazzMatt:
[MENTION=2732656]JWnSC[/MENTION] has the files to restore the Sprint LTE bands for you:

He's posted a few times about it and posted the files and procedure.

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] suzook:
I updated to Oreo, will update what happens now.

NOPE!!! 3 different computers. Any one wanna buy a v30? Im done
[LG V30 Guides, News, & Discussion] TheLizardMonkey:
I did see those they just werent super clear. Can I follow his method from my rooted US998 or do I need to somehow get back to stock sprint LS8998 and go from there?
[LG V30 Guides, News, & Discussion] Nine One One:
You should create LGUP folder at "C:\Program Files (x86)\LG Electronics"

Then you dowload "LGUP+V30DLL_PATCHED.zip" file at https://xdaforums.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076 and unrar. Copy all file after unrar to C:\Program Files (x86)\LG Electronics\LGUP

Connect device and run LGUP.exe

Done :D
[LG V30 Guides, News, & Discussion] ChazzMatt:
You can do it from rooted US998 by just using his files. I'm at work right now so I can't find his instructions, but maybe he can reply if he gets a chance. [MENTION=2732656]JWnSC[/MENTION]

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] TheLizardMonkey:
Awesome, thanks for the help and the replies. Hopefully I can get it to work.
[LG V30 Guides, News, & Discussion] Nine One One:
It is right bro?

Can i start and have not problem?
[LG V30 Guides, News, & Discussion] suzook:
OMG!!!!!!!!!!!!!!!!!!!!!!!!! It worked!!!!!!!!!!!!!!!! Thanks
[LG V30 Guides, News, & Discussion] ChazzMatt:
That looks right. There should be a pop up box that shows choice of partitions, and you would "select all", then OK. It may be hidden behind that big box.

After you flash, you'll need to do a Master Reset.

Good luck!
[LG V30 Guides, News, & Discussion] Nine One One:
You are welcome :D
[LG V30 Guides, News, & Discussion] ChazzMatt:
Re: SPRINT LTE BANDS

Here, read a these posts:

https://xdaforums.com/lg-v30/how-to/making-modem-bin-flashables-twrp-t3794435
[LG V30 Guides, News, & Discussion] Nine One One:
I converted from AS998 to H933 succeed. Thank you!
[LG V30 Guides, News, & Discussion] ChazzMatt:
You're welcome!

Sent via open market LG US998 V30/V30+
[LG V30 Guides, News, & Discussion] Charbleach:
Just a quick question, I can always go back to stock VS996 if I wanted to? And are all US998 ROMs Compatible?