yashsingh1/xdaforums huggingface dataset:
[LG G8 Guides, News, & Discussion] DaveImagery:
Yeah thank you, I found that version as well. It doesn't work for my variant. Just locks up, and when you do boot back into the OS, you can make calls, but not receive them. :(
[LG G8 Guides, News, & Discussion] C-w:
Hi, i have the same your prodlem, please show me how to solve it, many thank!
[LG G8 Guides, News, & Discussion] Bronnel:
Is there any other way to flash TWRP , I mean can we flash TWRP using fastboot ?
[LG G8 Guides, News, & Discussion] Raify4:
V30 US998 bootloader with no fastboot commands

Hello, I just got a used V30 US998 from B&H Photo, my first LG phone. I tried to unlock the bootloader but when I reboot into bootloader I get this screen that says Welcome to fastboot for bootloader unlock (image bellow) but no fastboot...

xdaforums.com

CT_HsPhone_General_Drivers.rar

I should serve you
[LG G8 Guides, News, & Discussion] Azs5165:
Pls i need abl sprint lg gx,

Hi,can u share abl lg g8x sprint?

If anyone have abl and boot lg g8x sprint,pls share.my phone bricked
[LG G8 Guides, News, & Discussion] orlandoblues:
guys, sprint unlocked here. Having 21d on one slot and 21e on the other, i'm assuming there is nothing i can do to root. Correct? Is there a way to downgrade to a rootable version? Thank you
[LG G8 Guides, News, & Discussion] arnodude53:
I've tried this method unfortunately without success. Upon flahing the modified abl_a.bin file through QFIL to both partition abl_a and abl_b the phone just doesn't boot anymore and I certainly cannot enter fastboot. If i restore the backed up abl_a.bin and abl_b.bin the phone works again. The requirement did say Android 10 is required and unfortunately I'm running Android 9 due to Android 10 not being available for the model + region of my phone (Korean variant). If nobody knows a solution I guess I'm SOL 😔
[LG G8 Guides, News, & Discussion] Azs5165:
Hi,can u share ur stock abl.I really need it
[LG G8 Guides, News, & Discussion] orlandoblues:
hey, how to do that?
[LG G8 Guides, News, & Discussion] monazemi:
Hi

Is there a way to use such method for LG G6?!
[LG G8 Guides, News, & Discussion] Alaaaloha:
Hello, I unlocked the bootloader , I just couldn't get the root , can u help please , I dont know which partition my phone is able_a or able_b ?
[LG G8 Guides, News, & Discussion] Alaaaloha:
I have my lg v50 thinq verizon bootloader unlocked , I need to backup the abl_a or _b.bin , I need to make a magisk patched image , can u guide me how to back it up ?

Thank u
[LG G8 Guides, News, & Discussion] Alaaaloha:
hello. ,y lg v50 thinq was bootloader unlocked before, i just had to reinstall a new system , and successfuly installed a new one , but now i need to root the device and my phone wont reboot to fastboot to see which slot im in to batch it with magisk ?!!

does it need to reunlock bootloader again or what ? is there any way i can see the current slot other then fastboot ?

please help , thank you
[LG G8 Guides, News, & Discussion] bylgrad:
Thank You for this tutorial. It worked!

I'm using LG V50 thinQ

Model No: LM-V500N

SW Version: V500N20z

Android 10

I was just stucked in the fastboot part because my Laptop cannot detect the device.

typing fastboot devices didn't show the device. So I have to update the driver in the 'Device Manager' . then it worked!.
[LG G8 Guides, News, & Discussion] ohmediafire:
Hi guys. some questions here.

I replaced backup file 'abl_a' and 'abl_b' and successfully unlock bootloader. But after load magisk_patched-23001_xxxxx.img to 'boot_b' my phone keep restarting at 'your device software cannot be checked for corruption. Please lock the bootloader'.

When I change 'boot_b' to backed up one, my phone is working again.

Weirdly, now I can't enter Fastboot mode anymore.

Please help me guys.

LG V50

V500N20z

Korea set

Magisk Manager f822ca5b (23001)
[LG G8 Guides, News, & Discussion] ohmediafire:
Problem solved. i can enter Fastboot mode by flash again abl_a and abl_b with abl_a engineering.

Thanks
[LG G8 Guides, News, & Discussion] TurtlesPartOfTheWayDown:
I decided to try this on my AT&T LG G8X running Android 9 and this worked perfectly for unlocking the bootloader. The software version was G850UM10i. I'm a total beginner and the hardest part for me was getting the fastboot drivers to work on my pc.

I was using the phone on tmobile and didn't want to have to spend more money to get a prepaid at&t sim just to upgrade to android 10 so I decided to try it and was surprised it actually worked. I'll probably try to root it when I have time this weekend. I'm hoping to eventually get LineageOS and possibly Ubuntu Touch running on it.

Thank you so much to those that put this guide together and worked on the unlock method!
[LG G8 Guides, News, & Discussion] feyd2blak:
Hi

Please help!

I have a Sprint V50, and I can't get to the bootloader!

I tried from Recovery and tried from 'adb reboot bootloader', both just reboot to normal use!

It has the latest update, and factory reset goes to that version, not backwards to an earlier version.

Not sure what to try next?

Thanks!
[LG G8 Guides, News, & Discussion] feyd2blak:
Hi

I now have an unlocked bootloader! Thanks!

The next issue I am facing you guys may be able to help with is installing TWRP. I have tried everything I can think of for Sprint V50.

Any one have success for their Spring V50?

Thanks
[LG G8 Guides, News, & Discussion] rikita:
I have Verizon V50.

Bootloader unlocked and Magisk installed.

I can install TWRP through Magisk, but I cannot get phone to reboot to recovery with hardware keys (it will reboot to recovery through Magisk, but no touch).

I have tried every key combination for the last 3 hours.

Any ideas?
[LG G8 Guides, News, & Discussion] Jg_junior:
Any suggestions for QFIL error:

ERROR: function: sahara_rx_data:276 Unable to read packet header. Only read 0 bytes.

I've tried all suggestions to no avail thus far except using an older version of Windows
[LG G8 Guides, News, & Discussion] spatial25:
Do you have ufs selected at the bottom right of QFIL?
[LG G8 Guides, News, & Discussion] AsItLies:
I'd suggest to follow this thread, it's for the v40 but the qfil stuff is the same, so look carefully at it where it mentions getting qfil installed. It's a bit of a pain to do, but absolutely can be done.

cheers
[LG G8 Guides, News, & Discussion] Jg_junior:
Hey Yes I do
[LG G8 Guides, News, & Discussion] Jg_junior:
I Will let you know if it works
[LG G8 Guides, News, & Discussion] AsItLies:
I should clarify, there is one difference you will do compared to that thread re qfil. When they load the 'programmer file' (the firehose), it will be for the v40 (845 chipset), you will use the one for the G8 / V50 (855 chipset).

Other than that, the installing etc of qfil, qpst is the same.

cheers
[LG G8 Guides, News, & Discussion] Jg_junior:
I followed but had no luck, there wasn't anything extra steps within the thread to install QFIL really. The other install of QFIL in this thread is bundled with QPST as well
[LG G8 Guides, News, & Discussion] AsItLies:
My apologies to the OP here, didn't realize the great write up already exist here. Sometimes I don't read as much as I should.

So given it seems everything is installed properly, then a sahara error is *usually* a result of the cable / usb port issues. It's a common problem using qfil, but once u get the combo right it works properly. Here's the output from the v40 tele group re sahara errors:

"When you get a sahara error on Qfil, change your USB port/cable.

Restart both phone and pc before trying again.

Check drivers on PC

Try reducing the COM port speed by going to device manager

Try another PC

Disable driver signature verification on Windows 10

If you run out of ideas, use a Linux installation; will save you a lot of trouble"

So, as u can see, the fixes kind of run the gamut of possibilities. I'd focus on being sure you're using a usb 2.0 port, and use a data cable, not one just for charging the device.

cheers
[LG G8 Guides, News, & Discussion] sasindu:
Hi, iam using lmg820n with sk telecom firmware and recently i got android 11 and updated.

Can i roll back to Android 10 open korean firmware by following this guide? Is it possible to do while iam on Android 11?
[LG G8 Guides, News, & Discussion] astonmartin214:
I wish there was a video on this on whole method don't want to mess up

I haven't flashed since the V20 RR rom
[LG G8 Guides, News, & Discussion] astonmartin214:
VZW phone once I put the phone in download mode then I try to run it it'll say EDL fail
[LG G8 Guides, News, & Discussion] ftx777:
Привет друзья. Получил обновление до 11 андроид, на данный момент не разблокирован загрузчик и нет рута. Если я установлю обновление для 11 андройд, подойдет ли эта инструкция для этой версии? V500N SKT
[LG G8 Guides, News, & Discussion] AsItLies:
most here don't speak Russian, you would get more helpful answers if u translate first to english.

To answer your question, it should work to unlock the bootloader for sure. Not sure about getting Magisk / root though.

cheers
[LG G8 Guides, News, & Discussion] ftx777:
Hello friends. I received an update to 11 android, at the moment the bootloader is not unlocked and there is no root. If I install an update for Android 11, will this instruction work for this version? V500N SKT
[LG G8 Guides, News, & Discussion] Sinleth:
Followed everything. Was able to unlock the bootloader easily but whenever I tried to root it via Magisk I'd brick my phone with an infinite bootup loop. Used QFIL to put the backed up files back on the phone to unbrick it.
[LG G8 Guides, News, & Discussion] leopard_fist:
Hey folks - i'm having trouble rooting this phone and could use some help.

I've restored the

abl_a

abl_b

boot_a

boot_b

files using qfil, but still my phone is stuck at the sprint logo. I would have thought that would start me back from scratch, but it seems not.

I can get to edl mode, recovery mode, and I think even fastboot.

How can I start over from scratch and just try again? Is there a firmware I can flash to reset the phone completely?

Also, is there an xml file for qfil i'm missing?

I've rooted many phones, but this one's tough.

Thanks for any help!

Edit - now the phone is stuck at the lg screen at boot, it doesn't even make it to the sprint screen.

Is there a stock sprint firmware I can flash to completely reset things so that I can try again?

I can still access edl mode btw
[LG G8 Guides, News, & Discussion] AsItLies:
Unfortunately, sprint (and att) are carriers that don't make their kdz available. No one has one. You **might** find a backup someone did, probably through qfil, but it's important to be cautious with those as they may include partitions that have the individuals imei and s/n.

Your situation is kind of confusing. You say you re-loaded your backups, but u can still get to fastboot? That's not possible, the phone, stock, doesn't have fastboot.

that may be a clue as to what's wrong. cheers
[LG G8 Guides, News, & Discussion] leopard_fist:
I found a crossflashing guide here on xda, i'll flash a verizon kdz, the phone is unlocked so I guess it doesn't matter.

I can get to fastboot when I flash the abl_a included with the rooting guide, not with the stock abl_a.

If I get the verizon kdz flashed successfully, I can move on to trying the root process again.

As for the phone being stuck at the sprint logo, I have no clue why I couldn't recover from that, I would have thought that restoring the original abl_a, abl_b files would have fixed that, but no luck.

Regarding being stuck at the lg logo, I think what caused that, was that I booted into recovery mode and did a factory reset. After the reset I was stuck at the lg screen.

Hopefully the verizon kdz flashes ok and I can move forward.

Thanks for thoughts

folks, I think I may have bricked the phone - someone let me know what they think, and if need be, back to amazon the phone goes.

I opened up the phone in qfil, and let qfil erase all partitions and gpt info.

now, no buttons on the phone allow me to do anything, but when I plug the phone into the computer, it does show up under ports.

is the phone bricked? if so i'll just send it back

actually, I guess if someone had a partition layout backup they made with qfil, I could restore it on my phone and get it back up, am I right in this thinking?
[LG G8 Guides, News, & Discussion] sasindu:
Just one small question. Are we using the abl eng file to provide fastboot for the fastboot unsupported devices? And i am using a lm g820n korean version currently without fastboot support.

Thanks
[LG G8 Guides, News, & Discussion] AsItLies:
Yes, it's the eng abl that provides fastboot. Pretty sure that none of the devices support fastboot natively, think the all need the eng abl to get it.

cheers
[LG G8 Guides, News, & Discussion] sasindu:
Thanks man. All your replies help me a lot.
[LG G8 Guides, News, & Discussion] sasindu:
Dear AsltLies, iam in the middle of this process. My fastboot doesnt work. Tried switching off safeboot and test mode on in windows 10 pro. No luck. It just doesnt list my device. Can u help me please?

Thanks
[LG G8 Guides, News, & Discussion] AsItLies:
So, if I'm understanding correctly, your device is going into fastboot? right? It's just that the pc doesn't see it with 'fastboot devices'?

If that's the case the problem is a driver issue. Go to device manager and somewhere in that list should be 'Android !'

That's the indication u have an android device connected but no appropriate driver loaded it for it. Find that and then click load driver. Find the LG usb drivers you installed (or should have), in that list should be one for 'lg adb', use that.

yes it does say ADB, but it also works for fastboot. It's really a windows lame as crap thing. U may have already loaded that driver for that device, but in ADB. Windows make u do the same stupid thing to get fastboot to work with the exact same device.. pathetic really.

cheers
[LG G8 Guides, News, & Discussion] sasindu:
Dear AsltLies, Thanks for the reply. However i got fastboot to work by using driverbooster according to youtube video.

Then i finished the process of unlocking the bootloader.

However when i try the last part of magisk rooting process by loading the patched file by magisk to boot_a it goes to a bootloop. I got out of the loop with a backup. Anyway what did i do wrong? Does the patched magisk file need any renaming or somethimg?

Thanks
[LG G8 Guides, News, & Discussion] AsItLies:
Well, the first thing to understand is what the heck is the 'patched magisk' file?

I think u know, it's a boot partition. But for what variant? At&t? Sprint? etc etc etc.

You can't mix and match, it has to be for the variant u have, and it has to be the android version you have. So, if u have sprint android 10 version 20c, then u want that boot partition with magisk injected into it.

If u are trying to use some other boot partition, that's why it won't boot.

What boot partition (variant and version) is on your phone now?
[LG G8 Guides, News, & Discussion] sasindu:
Another thing. Now my device shows an orange color message bootloader unlocked and it is some kind of security issue message. But it boots up. Thing is it went for a secure start up with 30 pin code. But i cant reset it with the button combination with that orange color message popping up. Any idea?
[LG G8 Guides, News, & Discussion] sasindu:
In the rooting guide it says to transfer the patched magisk file to pc and load it to boot_a. That what iam referring to. My device is a LM G820n sk telecom korean variant now running open korea android 10 by following opid mismatch removal guide.

Thanks
[LG G8 Guides, News, & Discussion] AsItLies:
so the orange message about boot loader unlock is normal, it does not go away, you cannot make it go away without re locking the boot loader.

Your current boot partition is then whatever rom it's running. U say it's korea open android 10, but I believe there are 3 or 4 versions of that, like 20a, 20b etc etc.

verify which one u have. Let me know and there may already be a boot partition with magisk in it available.
[LG G8 Guides, News, & Discussion] sasindu:
Its the 20b version. Any key combination to reset this to bypass the 30 pin key with the orange message popping?
[LG G8 Guides, News, & Discussion] AsItLies:
I don't know what you're referring to with the '30 pin key' ? I've seen the boot loader is unlocked message, and again, no, u cannot bypass that.
[LG G8 Guides, News, & Discussion] sasindu:
Sorry man. Not 30 pin key. My bad. Its the 30 attempt key normally u get when u downgrade. U can bypass that by resetting the device with the key combination. But now i cant get the key combination to work with the orange message popping.
[LG G8 Guides, News, & Discussion] AsItLies:
Terribly sorry but I am not familiar with what you're experiencing. I've never seen that and don't know anything about 30 attempt key anything.

The orange message is that the boot loader is unlocked, have seen that a million times, and there's nothing u can do about that happening.

I did find the needed boot image with magisk patched. I know it says v50 but it's indicated to work with g8 also. Be sure to back up current one and name it so you'll remember what it is and what it isn't ;)
[LG G8 Guides, News, & Discussion] sasindu:
Thanks a lot man.

Finally i resetted it successfully.

I think ill try the rooting part tomorrow.

Again thanks a lot man. Ill try with this boot partition tomorrow. Ur a lifesaver. Thanks for all ur replies.
[LG G8 Guides, News, & Discussion] sasindu:
I tried this final rooting step.

1. Copied boot a bin to phone.

2. Patched the file with magisk. First time magisk just closed and created a 0 byte file. But i deleted it and again patched it and cteated the img.

3. Transfered it to pc

4. Selected boot a with partition manager and loaded the img file

5. Then closed partition manager and rebooted.

After this phone went to a bootloop. Any idea what iam doing wrong?
[LG G8 Guides, News, & Discussion] sasindu:
Anyway thank you all for helping. I figured it. As Quadrplax said in his post you should NOT keep SECURE START UP enabled. After disabling this i managed to successfully root too.

Again thank you very much all for your support.
[LG G8 Guides, News, & Discussion] sasindu:
AsltLies, i didnt flash the provided image as i was wrong yesterday. Its 20v. Not 20b. Sorry man. My bad. I didnt want to trouble you again.

Finally i managed to root by flashing magisk patched image. The secret was disabling secure start up as quadrplax said.

Thank you for all your help.
[LG G8 Guides, News, & Discussion] chuckpitt34:
Does this guide work on a Verizon LG V50
[LG G8 Guides, News, & Discussion] leopard_fist:
Before I try rooting again, can someone tell me, or point me to a resource that explains, how I can back things up, so that if something goes wrong, I can start back over from square one? I can't make a nandroid backup because I don't have twrp. I guess a proper kdz would do it. Is there some sort of device backup in qfil?

thanks very much!
[LG G8 Guides, News, & Discussion] AsItLies:
So you don't say which OS yer running now, that's important because some of them, like at&t and sprint, don't make their kdz available.

So if u are running other than those, then u have a kdz available and u don't need a full backup, only to back up relevant partitions to your imei / sn, which would be ftm, fsg, modem, modemst1 and modemst2.

If u are running one of those, then the only option (other than doing ea partition in qfil), would be the bkerler edl python scripts. They can create an entire backup and also create the rawprogram.xml needed to flash all the partitions back.

good luck
[LG G8 Guides, News, & Discussion] sasindu:
Quick question. I successfully unlocked bootloader and rooted. If i crossflash a kdz will it lock bootloader and unroot the device?

Thanks
[LG G8 Guides, News, & Discussion] AsItLies:
No, it does not relock the bootloader.
[LG G8 Guides, News, & Discussion] sasindu:
Thanks AsltLies. Do u have any idea that can we flash the us unlcoked kdz (g820qm) one to korean g820n successfully? Because i want to completely remove this korean letters and all. And as per my knowledge us g8 comes with dual camera and korean one has tripple camera. Will it be a problem?

Thanks
[LG G8 Guides, News, & Discussion] AsItLies:
As far as camera goes, no idea as have never done that. Pretty sure though u can get the lg camera apk from korean and install on us version, may work, may not. Try and find out.

As far as x-flashing goes, first, we have 2 ways to do that. 1) would be the way u use the kdz and lgup, 2) would be the using qfil and flashing certain partitions and changing totc file using twrp.

The 2nd way didn't work for me because the OP partition of US Open is much bigger than OP partition size for korean open. While there are ways around that, which include changing GPT table sizes, I decided against that personally.

the 1st way should accomplish what u want, as it would give u the us open OP partition, meaning vowifi and volte would work, no korean verbiage, etc etc.

But there is one caveat here, I did the above (both methods) with an original Sprint G8. Some have noted that there are some differences with the Korean G8 (original). So I can't verify it would work. Think the only way to know for sure is to try it.

cheers
[LG G8 Guides, News, & Discussion] sasindu:
Thanks AsltLies.

Ill let u know if i succeed in this.
[LG G8 Guides, News, & Discussion] truongtoan1994:
Tks, it's working fine.
[LG G8 Guides, News, & Discussion] leopard_fist:
AsItLies,​

what do you think about this guide for doing a full backup of the phone with qfil?

it seems to show how to make a phone's full storage show up in windows, so a backup could be made with a windows imaging program of choice (and similarly restore)

How to full backup any qualcomm phone (no root)​

How to full backup any qualcomm phone (no root)

Hi every body, I had reviced a lot of question about how to backup qualcomm devices. So today I will show you how! (test in Obi SF1) Because if your phone is not root, you can't back up your rom in case brick when you play with the phone. So you...

xdaforums.com
[LG G8 Guides, News, & Discussion] AsItLies:
Have never done that, looks to be moderately involved. I'd suggest to try the bkerler python edl scripts. Because they are python they can be run under windows or linux (I much prefer linux).

Additionally, bkerler has made an iso image available in his latest release of the utilities. So u can flash that to a usb drive, boot it, and you'll have a complete linux environment with his utilities and all dependencies already resolved. Follow this link for the readme file.

So that too may be 'involved' also, depending on experience. It's linux based so u have to use a 'shell'. Also it's a command line interface, not a gui. But they work very well to backup a device completely.

cheers
[LG G8 Guides, News, & Discussion] leopard_fist:
edit: root achieved ;)
[LG G8 Guides, News, & Discussion] leopard_fist:
a couple of thoughts regarding my attempts to get this phone rooted:

originally a week and a half ago on my first try, after unlocking the bootloader, when i went into qfil to restore my stock abl_a, abl_ b files, i didnt understand why the restore didnt restore my touchscreen. it turned out, for whatever reason, qfil didn't make proper backups of those files hence no return of touchscreen. i met the same problem on this second try, but fortunately i found that someone on this thread with my same model had shared their abl_a, abl_b files - which i downloaded, restored with qfil, and touch was properly restored.

once touch was restored, it was simple enough to continue with the root process by flashing the magisk patched boot image to the abl partition

just starting to kick around with the phone-installed viper4android, viper is pushing some mighty good sound quality from my musepack audio files ;)