yashsingh1/xdaforums huggingface dataset:
[LG V30 Guides, News, & Discussion] somekids:
Anyway to recover if I lost twrp, root and DL mode.

Try sideloading:

C:\adb>adb sideload update.zip

loading: 'update.zip'

error: closed

C:\adb>adb sideload Magisk-v18.0.zip

loading: 'Magisk-v18.0.zip'

error: closed

C:\adb>adb push twrp.img /sdcard/

2156 KB/s (31600640 bytes in 14.312s)

C:\adb>adb shell dd if=/sdcard/twrp.img of=/dev/block/bootdevice/by-name/laf

dd: /dev/block/bootdevice/by-name/laf: Permission denied

Will a security update from Tmobile restore my DL mode? 167mb
[LG V30 Guides, News, & Discussion] jerrys0828:
I am having the same issue as exhibitA. I am in download mode, but the patched LG UP won't run and gives me that mfc100.dll error.

---------- Post added at 06:02 AM ---------- Previous post was at 05:51 AM ----------

Okay, I figured this out. I needed to install the 32-bit version of a Microsoft C++ security update. I can't link, but found a lifewire post describing the issue when I googled errors relating to that file. I tried the 64-bit version first, but the 32-bit one did the trick (which I kind of expected considering the x86 programs folder).
[LG V30 Guides, News, & Discussion] exhibitA:
Thank you!

That does make sense about the 32 bit/x86 programs.

I'll give it a try, thanks again!
[LG V30 Guides, News, & Discussion] lildonkeybone:
Finally got the time and guts to do this. I'd read the procedure probably a dozen times and everything went as expected until after the FWUL part. It just kept booting into the OS. Sorry if it's been covered somewhere in the thread but I tried fat32 2gig partition then fat16, then dropped to 512, finally I tried a different SD card and that did it (the Kingston 16g wouldn't work, 32g SanDisk did). I knew I'd followed every step, the commands didn't return an error or that hello message so I assumed they worked. Will the SD card be mounted and viewable in FWUL and that's how I could have known?
[LG V30 Guides, News, & Discussion] wireeater:
I was able to recover download mode by uploading an OTA update (zip) to the phone using the FOTA on LG UP. You just need to place WPDAPI.exe in the dll folder which I have. I can't upload it right now though.
[LG V30 Guides, News, & Discussion] Josh McGrath:
Was it an update you needed or were you already on the latest software?
[LG V30 Guides, News, & Discussion] wireeater:
You can do it even if you're already on the update.
[LG V30 Guides, News, & Discussion] somekids:
When you get a chance can you upload the zip + the file for future reference and so i can have copy.

Thanks

I took the chance on the 167mb update and was able to get DL mode back, though a FOTA is likely better for the future in case I do run into some similar.
[LG V30 Guides, News, & Discussion] Andi32790:
Will you please upload this. I am also in the same situation but i am on the latest update.
[LG V30 Guides, News, & Discussion] wireeater:
Here you all go. This folder contains everything needed for download mode recovery. Read the instructions provided in the folder first. I just uploaded the most current OTA update as well. Was able to grab the link by taking a bug report as it was downloading the update. I am currently unrooted as I broke my download today so I could verify all the steps worked as written.

https://drive.google.com/drive/folders/1TZE4Gx8v6n-iD-eWlczn5ps9I8qO4wjt?usp=sharing
[LG V30 Guides, News, & Discussion] Andi32790:
This works quite effortlessly i might add thank you so much
[LG V30 Guides, News, & Discussion] wireeater:
You are welcome. I meant to post this awhile back but forgot to. I spent about a week trying to find ways to recover download as I had lost it when re-rooting and I accidentally forgot to unlock the hard bootloader. I am a glutton for troubleshooting and spent many hours trying to find some sort of backdoor way to recover this without having to wait for an update push. I was quite happy when I discovered this way.
[LG V30 Guides, News, & Discussion] c19932:
did you ever find a solution to this? I just rooted and upgraded to oreo and titanium backup FCs upon opening
[LG V30 Guides, News, & Discussion] Xblackberryuser:
Eventually started working. I haven't a clue why.
[LG V30 Guides, News, & Discussion] Kishan Shrestha:
I did same as told in procedure but gave error "bash: !EXEc: event not found"
[LG V30 Guides, News, & Discussion] mattgyver:
When you followed the steps, did you copy/paste the code from Firefox in FWUL to the terminal window, or did you manually type in the code? If you typed out !EXEC toybox, did you remember to type

2 SPACES

between EXEC and toybox?
[LG V30 Guides, News, & Discussion] thebitjockey:
So I think I have a brick somehow.

After flashing laf from the H933 10h KDZ, upon reboot I only get the V30 logo. Using the power-up when plugged into USB it starts to go into download mode but not fully, I only get the small box in the middle saying download mode with blue dots. It does not appear to fully go into download mode.

Trying normal boot hangs and bootloops back to the V30 logo.

I can get into bootloader fastboot mode but of course without a flash command at this point I am stuck. Was never able to get TWRP flashed since the H933 10h LAF did not load. I'm thinking the flash of the LAF did not complete correctly.

Any ideas?
[LG V30 Guides, News, & Discussion] Josh McGrath:
You should still have stock recovery on there then. Have you tried booting into it and doing a factory reset?
[LG V30 Guides, News, & Discussion] adamjrod:
How to carrier unlock after doing this

Ok so I did this and I have root on my second time trying it. But I still can't use another SIM card aside from T-Mobile. What is the next step? I want to carrier unlock it. Should I flash a ROM or somehow delete all of T-Mobile's apps?
[LG V30 Guides, News, & Discussion] mattgyver:
Rooting and bootloader unlocking doesn't mean sim/carrier unlock. Removing T-Mobile's apps won't do it, and neither will flashing a ROM.

If you own the device, you can take the chance using T-Mobile's Device Unlock app. Otherwise, contact T-Mobile Support and see if they'll do it. I know mine was fully paid for right off the bat and I had it carrier unlocked. YMMV, but that would be the "best" method. I'm sure there's got to be some service menu that would do it if you had the steps, but I haven't heard of anyone doing it through service menus.
[LG V30 Guides, News, & Discussion] Josh McGrath:
I get really tired of seeing these in every single root thread. There's always at least one sim unlock guy

[MENTION=9607069]adamjrod[/MENTION] just look online, I've seen services work with the v30 via a code
[LG V30 Guides, News, & Discussion] adamjrod:
I have paid my devices off (I had 2 LG v30) and T-Mobile has created a run-around where they keep you calling tech support and they never actually unlock the devices. The device unlock app does not work and it gets to be very frustrating. I just want to use my device internationally. And there are cases where root unlocks the sim lock. I thought this might be one instance.

And I know there are other benefits to root, but I would not go through all of this and risk bricking my phone (which I did the first time I tried) just for custom roms and rooted apps.
[LG V30 Guides, News, & Discussion] mattgyver:
I can honestly say that if your sole reason for rooting was to get sim unlock, had you asked prior to running through the steps, you would have gotten a few answers of no. Rooting gets you full ownership of the device, to do what you want with it - be it custom ROMs in most cases, or apps that get added functionality. I'm happy for root, just so I can have access to the full device.

That's the problem with that unlock app.. I know it worked a while ago, but I haven't needed it in a long time to even try it. As for TMo support, you could always take it in-store and have the rep call support to do it. Maybe that would push it over the edge. I don't know...
[LG V30 Guides, News, & Discussion] ChazzMatt:
On the other V30 variants, flashing to carrier unlocked firmware will SIM card unlock the phone. Bootloader unlock and root is not necessary for carrier unlock. However, T-MOBILE H932 cannot do this, due to different RSA encryption from and other V30.

As stated before, if you had asked prior we could have given information.
[LG V30 Guides, News, & Discussion] TheDannemand:
I've struggled, twice now, to carrier unlock my H932, after getting it back from LG repair. Even with a paid off phone and an account in good standing. Device Unlock app generally doesn't work unless the account is still active.

As mentioned, customer service will be friendly and say they've requested unlock, then after a few days you receive an email, NOT with an unlock code, but explaining how to use the unlock app. After 5-6 tries, this routine gets tiresome.

First time (originally unlocked phone wiped by LG repair) I was able to fix it by performing a service menu factory reset, after which Device Unlock worked again.

Second time (a warranty replacement unit from LG with a new IMEI) I filed an FCC complaint, which promptly caused a friendly call from T-Mobile Executive Office, who was able to flip a bit on T-Mobile's server, thus allowing the Device Unlock app to do its thing.

I recommend filing that FCC complaint if a few calls to customer service doesn't do it.

And yes, this has little to do with BL unlock and root, except that on some phones (and all other V30 models) the root procedure will also lead to carrier unlock. Just not T-Mobile models...
[LG V30 Guides, News, & Discussion] Josh McGrath:
I had the same issue but let me add that DO NOT talk to the Philippines CS. This is what you get from them. I don't know how they managed to fit that much stupid in one building without the universe collapsing.

Call an American side rep, a manager, and tell them the situation about the CS sending an email and they will know that's not right and will unlock it for you.

They are so stupid in the Philippines CS center. The email is when they give you a code and that's for non tmo phones like the old days.

I think you said you got it unlocked, but just for future reference, don't deal with the Philippines CS
[LG V30 Guides, News, & Discussion] TheDannemand:
Yeah, I got mine re-unlocked, twice (after the original first unlock). I just meant to point out to others in this situation (A) the service menu factory reset and (B) the FCC complaint being an efficient route.
[LG V30 Guides, News, & Discussion] xdamember143:
Help everytime i finish flashing twrp and i immediately try to boot into twrp it just regularly resets the phone and doesnt boot into twrp ?
[LG V30 Guides, News, & Discussion] Josh McGrath:
Twrp probably isn't being sent to the phone. How did you format your sd card? Fat16/32 etc and partition size ?
[LG V30 Guides, News, & Discussion] xdamember143:
That's sounds about right I formatted it to be fat 32 and partitioned it to be exactly 1.95gb
[LG V30 Guides, News, & Discussion] Josh McGrath:
It seems like more people have had better success using fat16. I personally had formatted my 200gb SD card to one single 500MB partition at fat 16.
[LG V30 Guides, News, & Discussion] zfk110:
Hi, do you know which xposed frame work will this ROM?

https://xdaforums.com/lg-v30/development/stock-t-mobile-lg-v30-stock-collection-t3881202

Im using Magisk 18.0
[LG V30 Guides, News, & Discussion] xdamember143:
Can u give me instructions on how to propproperly partition my sd card ? I feel like i did a step wrong maybe. Also is it normal to get a white border around the lg screen?

---------- Post added at 11:22 PM ---------- Previous post was at 10:52 PM ----------

forgot to mention but everytime i put in !EXEC toybox dd if=/storage/external_SD/twrp.img of=/dev/block/sde bs=4096 seek=10246\0

!CTRL POFF i always recieve a hello i am laf when i copy and paste it but it still makes the progress bar to 100 even though it says that i messed up
[LG V30 Guides, News, & Discussion] Douglaa9630:
hi there, i know this sounds dumb but how do you make the fingerprint scanner to work on th h932
[LG V30 Guides, News, & Discussion] lildonkeybone:
I did the whole procedure but then upgraded to Lineage 16 and didn't have fingerprint scanner. I was referred to a thread someone was nice enough to make with a variety stock zips. I backed up everything then flashed stock oreo firmware and was able to restore partitions and scanner is working.
[LG V30 Guides, News, & Discussion] ChazzMatt:
Is yours not working? Then something it wrong with your phone or you haven't set up the option yet. Go into Settings and turn on the fingerprint option.

Or is your question really about a custom ROM?

This thread isn't about installing custom ROMs -- it's about unlocking bootloader, installing TWRP and rooting stock firmware for H932... Fingerprint sensor/scanner works fine on stock firmware.
[LG V30 Guides, News, & Discussion] Douglaa9630:
After I installed twrp,none of the aosp Roms don't want to read my finger.
[LG V30 Guides, News, & Discussion] ChazzMatt:
So it is a custom ROM question. :) Has nothing to do with H932 bootloader unlock, TWRP installation or root.

Your fingerprint scanner worked fine on rooted stock firmware -- until you installed custom ROM. You should ask in the ROM thread. You'll make people think this root process breaks the fingerprint scanner, and it doesn't. ;)

But from reading the ROM threads, your answer has to do with making sure you are on stock Oreo firmware before installing custom ROM, as well as using correct fingerprint profile on custom ROM.
[LG V30 Guides, News, & Discussion] winkynatedog:
h933.laf vs h933.laf

Good evening,

I am glad there is finally root for this phone. I am not 100% done yet still waiting for some files to DL. I had a little trouble getting LGUP to work. I will post a picture of what folder I put the files in and all the files I put in that folder to make it LGUP work. Once I am done, I see there are a few options. One option is to go back to OREO, what does that mean exactly? The other options are stay 933.laf or go back to 932.laf. Does it make a difference to be on one or the other. Can I flash 933 ROMS if I stay on 933.laf? And Lastly, it says if I don't want TWRP on laf to go back use the 932laf.zip. Will that get rid of TWRP or just the second copy of TWRP? My gut tells me to just stay 933 and flash ROMS from there. Sorry to sound like a noob, been a while since I've done any of this. Hell I may be switching to a different phone, but this stuff is fun for me, as long as I don't brick lol.

Thanks,

Nate
[LG V30 Guides, News, & Discussion] mattgyver:
The h933.laf is what makes Brian's root method work. You can safely leave the h933.laf on your phone, but you can't use any LG apps. Putting h932.laf back on afterwards allows you to use the stock LG apps like backup.

Twrp is on the recovery partition, so you'll be fine to put 932.laf back if you want. Your call. If you don't plan on using LG apps, don't worry about it.

The instructions say to be on 10d, which is nougat. You can upgrade to Oreo using the zips that both [MENTION=3167089]runningnak3d[/MENTION] and [MENTION=9374982]weakNPCdotCom[/MENTION] have made available. 20p is currently the latest.
[LG V30 Guides, News, & Discussion] winkynatedog:
FWUL

Thanks for the response above. I plan on using some custom ROMS and the LG apps aren't that important to me. But we will see maybe I'll feel differently after trying some ROMS. Anyway, I get into FWUL, and I run the codes. Everything goes well and I get the 100% after typing !CTRL POFF, but I am not getting into TWRP after factory reset. I followed the instructions to the T. I DL'd both versions of TWRP on the page that comes up with the link. I even tried using the fastboot flash method. After typing !CTRL POFF, I let the phone power off, I did not let it boot into the system. I then rebooted my computer into windows and got the command prompt window up. I then pushed volume down and plugged in the USB cord, and the brought up fastboot. I then typed "fastboot flash recovery twrp.img" but still no recovery. The .img file was in the same folder as fastboot. It looked like it was going to work, but then said failed.

Basically all steps were successful except the one where it gets twrp from the SD card and loads it to the phone. I 100% copied and pasted the long code. One last thing, I did not format my SD card due to not wanting to lose stuff on there., but I know it isn't partitioned or ext format. Any help would be appreciated.

Thanks,

Nate
[LG V30 Guides, News, & Discussion] mattgyver:
Then you didn't follow the instructions to the T ;)

What size sdcard do you have? Do you have a card reader that you can plug the sdcard into a computer to get the properties of it?
[LG V30 Guides, News, & Discussion] ChazzMatt:
No. The 2nd TWRP is just a backup copy, since it's sort of difficult to get TWRP on this phone.

By having second copy of TWRP on laf partition (in addition to the recovery partition), however you will no longer have Download mode.

You will never be flashing "H933 ROMs" on this phone. The laf partition is not RSA encrypted and is ingenious workaround to make the necessary changes for this H932 root process to work. But be clear that any ROMs or full firmware you flash on H932 needs to be CLEARLY labelled as being for H932. If in doubt, ask first before installing a ROM. In some of the ROM threads, you'll see two download links: ROM version for everyone else and separate link for H932. Or you'll see a ROM thread devoted to H932 only, because the other variants can't flash that.
[LG V30 Guides, News, & Discussion] TheLoonyRebel:
My mirror for the two KDZ's needed for the H932 root process:

H932 10D:

https://www.androidfilehost.com/?fid=11410963190603913252

H933 10H:

https://www.androidfilehost.com/?fid=11410963190603913287
[LG V30 Guides, News, & Discussion] chaoticdopey:
who here wants to make $30 rooting my phone? no clue how to do it and dont want to have to learn the adb stuff but willing to pay
[LG V30 Guides, News, & Discussion] Eliejo:
I cannot go to fasboot mode, what should I do? I have tried turning off the phone hold volume down and plug cable but it doesn't work. The phone just blink and when I release it just restart

Edit, just downgrad to 10d and everything work fine
[LG V30 Guides, News, & Discussion] welm0:
Thank you for the time and effort put into this project. I will be donating after I'm done traveling. I've had my h932 rooted previous times before this post. But while letting my little cousin play a game he took the OTA update. Now after the last step !CTRL POFF, instead of loading into TWRP it says to go and unlock my bootloader. I've done those steps again I know for a fact it is unlocked because I still get the warning screen every time iPhone boots up plus ADB says it is already unlocked. I've even made a new fwul USB. I've ran through LGUP a few times. I've tried reformatting my SD card also new files on the SD card. I'm flabbergasted stumped is there anything I'm missing?
[LG V30 Guides, News, & Discussion] mattgyver:
Did you downgrade to 10d?
[LG V30 Guides, News, & Discussion] welm0:
Yes, while running through the LGUP steps
[LG V30 Guides, News, & Discussion] Irazor73:
Sort of brickd need help

So i have a tmobile v30

followed all the steps as posted in the procedure

but i didnt do the optional and cleaning up procedure in the end

the things i did wrong might be is that i did the oem unlock after all the procedure was done but i re-flashed Part 2 again just to gain the twrp

another thing i noticed was i didnt find any magisk app after the procedure was completed dont know if it is ok or not

however i had twrp so i flashed this rom

https://xdaforums.com/lg-v30/development/stock-t-mobile-lg-v30-stock-collection-t3881202

with complete stock variant

now i am on android 8.0 tmobile

with no root

no twrp

no download mode

no fast boot

but working rom and working adb

any suggestions guys ?
[LG V30 Guides, News, & Discussion] daitran2007:
after I type

!EXEC toybox dd if=/storage/external_SD/twrp.img of=/dev/block/sde bs=4096 seek=10246\0
!CTRL POFF

in the FWUL, I held down up volume and power, then i got to the Factory Data Reset. Selected Yes twice without spamming or press the power again after the warning screen for unlocked bootloader. It then flashed to a black sccreen with circle in the middle with the word Erasing. Then it boot back into android instead of TWRP, can someone help?
[LG V30 Guides, News, & Discussion] Josh McGrath:
TWRP isn't being written

Make sure your sd card is fat 16

Cut/paste the commands from this thread into fwul

Try it again and report back
[LG V30 Guides, News, & Discussion] daitran2007:
Thanks. I reformatted the SD card to 1gb and with FAT instead of FAT32 and it works.

Now I have a problem with finger print sensor. It does not work with any roms that I installed on it. Any idea why?
[LG V30 Guides, News, & Discussion] Josh McGrath:
I have seen this issue but I can't remember the solution. I believe you need to flash the hardware drivers via twrp. I can't remember. Do a search in this thread and I think someone found the solution
[LG V30 Guides, News, & Discussion] daitran2007:
Thanks for your help.

For anyone who has the same probem with fingerprint for H932, just flash the Oreo from this link

https://xdaforums.com/lg-v30/development/rom-h932-oreo-v20o-stock-twrp-t3863202

and don't forget to flash the Magisk right after otherwise you'll lose the root.
[LG V30 Guides, News, & Discussion] jblparisi:
Hi, Just sold my V30 and upgraded to a v40, the person who took the v30 says its rebooting on it own after I did a factory reset from twrecovery and wants to restore it to stock.

Is it safe to tell him to run LG Bridge and restore to stock then manually lock the bootloader? Thanks guys.
[LG V30 Guides, News, & Discussion] ChazzMatt:
Tell him to do a Master Reset. Different from Factory Reset.
[LG V30 Guides, News, & Discussion] jblparisi:
Not sure how that would help him.

I would have used lgup + kdz myself but that's too complicated to explain someone who's not technically inclined over messaging. That's why I suggested maybe LG Bridge and restore might do the trick.

I want recovery and bootloader unlocked boot message gone for warranty purposes.
[LG V30 Guides, News, & Discussion] ardian1899:
Hello Bro..

Good to see someone reliable like you still doing stuff around LG phones. :good:

A question, mine was signal unlocked, but now locked again after flashing 20p firmware.

Is it possible to downgrade to 10d, root it and unlock the signal from there?

Thanks a lot
[LG V30 Guides, News, & Discussion] brolic925t:
had a ROM n root and flash 20p zip without no verity n other file.. rip download mode, enjoyed you for 5 mins after just getting my v30 back.. I have to wait for ota I'm guessing? cause downloaded mode just reboots
[LG V30 Guides, News, & Discussion] ChazzMatt:
I don't quite understand what you did, but if you need download mode back:
[LG V30 Guides, News, & Discussion] brolic925t:
you've helped me so much since I first got my v30 lol ty again man, I get to enjoy this gem again.
[LG V30 Guides, News, & Discussion] Wolf Dragon:
I can't install ROMs

Long time lurker and installer, first time poster here. Followed the directions to root and I managed to get TWRP installed, but beyond that, I can't seem to get any ROMs to stick beyond the boot screen after installing Magisk and the other files before booting back into the stock ROM. I tried DotOS, I tried Lineage, I could probably try a couple of others but I haven't really had any luck without going back to stock and starting over. At the moment, I've just decided to go back to 10d until I get the issues resolved. Am I missing something here?
[LG V30 Guides, News, & Discussion] Eliejo:
When you flash lineage kind of roms just flash the rom, gapps, and magisk if you want root. You don't need any other files
[LG V30 Guides, News, & Discussion] Wolf Dragon:
You sure? I was waiting upwards of 20 to 30 minutes at the boot animation after going to install these ROMs.
[LG V30 Guides, News, & Discussion] chaoticdopey:
will this work for software version H93220o?
[LG V30 Guides, News, & Discussion] Josh McGrath:
You have to downgrade first