yashsingh1/xdaforums huggingface dataset:
[LG G8 Guides, News, & Discussion] Parkia_Jr:
Pls guide me from the first step as I'm having difficulty in getting the phone to fastboot after backing of the abl files the Volume down and power combo does not get me to fastboot
[LG G8 Guides, News, & Discussion] matthew33:
The easy way?

Follow my guide:

1: Regret EVER buying this pile of dung called a LG V50 UK Model

2: Sell the pile of dung on Ebay

2: Purchase a WAY better phone than the V50, G8 and G8s put together, a LG V60 - ROOT = as simple as the lg v30 was.

3: Breathe a sigh of relief.

4: The end.

Matt
[LG G8 Guides, News, & Discussion] AsItLies:
haha there's a kernel of truth to this. But additionally one could say just buy a pixel phone and use a unix shell script to update firmware, and you'd have to admit it's about the most easiest thing you'll ever do.

This unlock method is like anything though, once you get familiarized with the initial difficulties, it becomes easy. I've been doing it with a v35, v40, and now G8. You can do it in your sleep once you've done it a few times.

And, you learn a lot. I didn't know what edl mode was until I learned about it doing this. Hell, many of the 'fix it' shops don't have any idea what edl mode is! Personally, I like knowing stuff ;)
[LG G8 Guides, News, & Discussion] Parkia_Jr:
What carrier of g8 do you have?
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
Ok guys and gals, I was hoping not to need help, but I have fudged up. I am not sure how badly I have fudged it, but I have gotten to the point where I am going to ask for help.

backstory - US LG8x (sprint Variant). This version of the phone is locked to not be able to use Tmobile Volte, so essentially it will be worthless in 3 months when they shut down 3g, also I have a heck of a time getting regular SMS (I am on mint now btw). I read that by simply using the ABL_A engineering file, it would be essential trick the phone into think it was tmobile and unlock VOLTE and not stress about replacing it

So how it went

-Downloaded everything - no issues

-got it into EDL and connected to 9008 - All good

-backed up the partitions ABL_A, ABL_B , Loaded the downloaded ABL_A file into both partitions as instructed

-press and hold the power buttons, EDL disconnected and phone booted with a Tmobile screen! Success I thought and went for a well earned shower.

-Get back 30 minutes later, TMO splash screen still on, restart, still on.

- This is where I think I goofed, I then used the recovery menu to factory wipe the phone.....now nothing, only the G8x screen at start up, but no further, no Tmobile screen or anything. When I get into the Bootloader screen it says

Product Name_ - LMG850UM

Variant - UFS

HW Version - rev_10

secure boot - Yes

Device state - Locked

Active A/B Slot - _b

Now I can still get into EDL mode / But QFIL is giving me the Sarah error message. I do have the back ups of ABL_A and B, but I did not label them so I don't know which is which. Also the main goal here is not to unlock it forever but get it to use the engineering ABL so it recognizes and plays with the Tmobile network. Thank you for any help, and if I ruined it by doing the factory wipe, just give it to me straight...gives me an excuses to explain to the wife why I need the pixel 6 lol.
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
I will add that it is on the latest security update for the phone (20p I think the ending is)
[LG G8 Guides, News, & Discussion] ludz63:
It was successful, i am greatful. Thanks
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
So in my fatigue I accidentally flashed the MPT paratition in QFIL....any chance there is someone who has the same phone can give me that bin or at this point is there a way to just reload the firmware entirely? I can get into ELD mode to get in QFIL, but it doesnt give me any boot screens. I am pretty sure it jumped up on me and I accidentally flashed the MPT partition when trying to do the abl_b one, any help would be appreciated, at this point I am lost.
[LG G8 Guides, News, & Discussion] AsItLies:
This is the mpt partition from my sprint backup (think it was 20f ?). Oops, sorry, I have a G8 and u have G8x. Have no idea if those are interchangeable so deleted that attachment until it's clear.
[LG G8 Guides, News, & Discussion] AsItLies:
I can relate in that I use t-mo (mint) also, and getting everything to work, especially volte, is, well, critical.

My experience with the eng abl is that the phone won't boot until you flash back the original abl. But, like you, I've heard of others using the eng abl and have had some things work (like it even booting the OS).

What I'd recommend, and it's what I do, is xflash to the US Open kdz. While it may not be the latest firmware (currently it's a10), at least everything with Mint / t-mo will work.

caveat; I don't know what the latest firmware is for the g8x, mine is a g8.

cheers
[LG G8 Guides, News, & Discussion] Huy0410:
Does anyone use G8 T-Mobile ? I cannot boot into EDL mode.
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
I appreciate the help, I will try to flash the hardware once I get the thing to at least give me the menus, right now without the MPT I am dead in the water

so if anyone has the MPT for the G8x um 20p I have, also the original ABL_A and ABL_B bin files, I would be so grateful if I could get those...mine appear to be corrupt as any time I use my back ups I get "Memory overflow, are you sure you want to continue "
[LG G8 Guides, News, & Discussion] C-w:
Same problem bro, i have no root after unlock bootloader and follow the exactly the guide. Can you show me how can i have root. Tks
[LG G8 Guides, News, & Discussion] rootnooby:
Unfortunately, I have been unable to progress beyond this. ADB not recognizing the device at all. I am seeing the "LGE Mobile MTP Device" in device manager when connected and stuck on the LG boot screen. However, ADB does not recognize the device when I type the "adb devices" command. When I am in fastboot mode, the driver is no longer recognized and device manager shows the exclamation point error.

Wondering if I am able to recover from this, or am I bricked? Tried to go back to QFIL to see if I could flash the backed up abl files, but I can't get to partition manager because the phone is no longer recognized, i.e., I cannot select the port from QFIL to run partition manager.
[LG G8 Guides, News, & Discussion] conchimnonq:
Currently I need your help, my device is LG G820U10m and has EDL error. I need help from you guys. files named (abl_a.bin, abl_b.bin, boot-a.bin, boot_b.bin) from android 9 pie. Thank you very much for this help.

Hiện tại mình cần sự giúp đỡ của bạn, máy của mình là LG G8 và bị lỗi EDL. Tôi cần sự giúp đỡ từ các bạn. các tệp có tên (abl_a.bin, abl_b.bin, boot-a.bin, boot_b.bin) từ android 9 pie. Cảm ơn bạn rất nhiều vì sự giúp đỡ này.
[LG G8 Guides, News, & Discussion] bigd2337:
So I followed the steps the only part I was confused on was when it said load the engineering file for abl_a.bn and abl_b.bin i loaded it correctly as far as i know. now the phone is stuck on the LG G7 ThinQ load screen will not boot into fastboot...is there anything I can do or just throw this thing in the trash?
[LG G8 Guides, News, & Discussion] conchimnonq:
I have followed and know there are 2 ways. however they all have copyright issues and need money to buy it. 1 is Qfi. 2 is Medusa. and of course my device is currently in some kind of junk pile. because they are really high, and the only thing i can do is sell them for the price of a brick device.
[LG G8 Guides, News, & Discussion] bigd2337:
Yeh that was what I was thinking. Had this LG G8 ThinQ laying around as a backup phone figured I would play around with this so not really a huge loss. This is why I stay on iOS updates updates updates lol oh well I guess
[LG G8 Guides, News, & Discussion] AsItLies:
This step can be a little confusing, at first.

Initially, the challenge is to get qfil to work on windows and get the device in edl mode, and recognized by qfil. It seems you've done that.

Using qfil is a bit difficult also. First, remember it's older software. So that means you have to 'left click' to select the partition you want to deal with, then 'right click' it, to select from the menu what you want to do. It's important to do this sequence, or you may be saving / loading a partition you didn't intend to use.

So in yer case, save the original (read data from menu) abl_a and abl_b. Look at the output when qfil is saving them, go to the directory it indicates, and rename them appropriately (qfil doesn't name them as you would think).

Then, load the engineering abl to both abl_a and abl_b. After that, press and hold both vol minus and power (exit out of qfil). After about 5 sec or so, you'll hear the windows chime indicating the device is disconnected. At this point, keep usb cable plugged in, let go of power button but keep vol minus held down.

You should then go directly to fastboot mode. Use fastboot for whatever reason you need, when done, use it again to flash the saved abl_a and abl_b back to their abl partitions. Phone then should boot normally.

cheers
[LG G8 Guides, News, & Discussion] bigd2337:
Problem is now I can’t get it to boot into fast boot mode it just hangs on LG G8 ThinQ powered by android screen when I try to do the vol - and power it goes off that I let go of power still holding on to vol- then it just goes right back to the LG G8 ThinQ screen. The only other thing I can get it to do is display the imei and serial number by holding all buttons in
[LG G8 Guides, News, & Discussion] AsItLies:
So, where you are 'now' is difficult to determine as I'm not following your 'history' of what you've done.

I'd suggest, first, try to get back to 'normal' (device booting normally). So use qfil and flash the original abl a and b back to their respective slots (and restore original of anything else you've changed).

Sometimes, it takes a few tries to get what you need to do, right. It's kind of impossible for someone to know what you're doing wrong if they aren't standing there watching you.
[LG G8 Guides, News, & Discussion] bigd2337:
I have done everything up until I needed to place it from EDL to fastboot mode so after backing up the abl_a.bin and abl_b.bin I loaded the abl_a.bin which I assumed was the abl engineering file which is the one I downloaded from the tutorial links wasn't sure about loading that on abl_a and abl_b but since it was the only one I downloaded from the tutorial I assumed it was meant for both so I loaded it on both now the phone just hangs at boot will not do anything, connect to the pc or go into fastboot mode so I believe it may be bricked unless someone knows some kind of trick to get this major piece of crap going lol. Otherwise, it's going in the trash haha.
[LG G8 Guides, News, & Discussion] AsItLies:
so, tbh, idc, throw it in the trash :)

but why don't u just do what I said? flash the original abl's back using qfil?

you can get to qfil even if the device won't boot. the only difference is that you won't get a 'count down screen' like when it's booted. Just hold keys until screen blanks, then spam vol up. If it doesn't work the first time, keep trying, it will work.
[LG G8 Guides, News, & Discussion] bigd2337:
I will give it a few more attempts. I did try that it keeps bringing up the LG G8 ThinQ logo screen and hangs there forever but if I can get it back into EDL I will try uploading the original abl files. As of now it doesn’t look good
[LG G8 Guides, News, & Discussion] bigd2337:
I was able to get the original abl_a and abl_b files back on the phone and it is working normal again. My device has android 9 and for whatever reason never got any more updates since 01/2020 so not sure how to get this LG G8 ThinQ to android 10 because I can't find the ATT_US firmware for it and the OTA update isn't showing any updates available even though AT&T pushed the android 10 update a long time ago probably over a year ago. Any suggestions? I tried this guide anyway and it did not want to boot when the abl_a.bin file included in this guide was uploaded to it.
[LG G8 Guides, News, & Discussion] AsItLies:
The only other thing to do, other than maybe contact at&t and see if they can help with you getting the update, look around and see if you can find someone elses a10 backup for at&t. Be careful there though as there as some partitions you DON'T want to flash to your phone, even if they are given to you, that contain imei and s/n.

the abl_a that is included in this tutorial is for fastboot only. Do what you need to do with it, then flash the original back. No, it's not suppose to boot the phone. Your original abl is what u want to use to boot the device.
[LG G8 Guides, News, & Discussion] bigd2337:
So I had it right upload the abl_a.bin included here to the abl_a and abl_b? If that was right I could not get it to do anything besides go back to EDL.
[LG G8 Guides, News, & Discussion] archi101:
thank you. i am bootloader unlocked and rooted using magisk.

i have Sprint LG G8x
[LG G8 Guides, News, & Discussion] AtrixHDMan:
Hey I'm planning on buying a Verizon LG G8 and doing this method.Did you ever get it to work?
[LG G8 Guides, News, & Discussion] justanutt:
No, I missed a step or something. I actually had to send it to LG and they replaced the motherboard for free. 😉
[LG G8 Guides, News, & Discussion] Knoa6:
Hey I think I just bricked my brand new att g8x attempting this..

Got to the point in which you load abl_a file and select the file you provided. The next step it says do the same for abl_b but OP didn't provide an engineering file for abl_b that I saw and he said do the same thing so I selected the same file for b. Also don't see any boot_a or b files for magsik to get root so that part isn't too clear either..

But anyways so after loading the same abl_a.bin file for both a & b my phone wouldn't go into fastboot mode and just gets stuck on the initial welcome screen. I think I may be able to return to EDL mode now.

So was I supposed to rename the abl_a.bin file provided to abl_b.bin before loading to b?

Any help would be greatly appreciated. This is my first LG phone and I only got it cause I thought the thing could be bootloader unlocked (thought the dual screen was cool too). I know I don't post here often, but I do appreciate this community and could offer $20 cashapp if anyone can help me get it back to life rooted and bootloader unlocked.

Thanks
[LG G8 Guides, News, & Discussion] Knoa6:
So, I've read around the posts and it seems like several people have had my same issue in getting to the point in the instructions which it just says "do the same thing for abl_b" and being unsure what that means because the adl file is only abl_a.bin..

So here I foolishly forged ahead even tho I was unclear exactly what the instructions meant and I loaded the same file for abl_b. After this I couldn't get into fastboot after several trys but was able to boot into EDL again.

Now examining /AppData/Roaming/Qualcomm/QFIL/COMPORT_7

I notice abl_a.bin is 32,768kb while abl_b.bin is only 1,024kb

That's troubling as I thought I loaded the same file for both a & b.

Even more troubling is that now when I select partition manager in QFIL I get

Error: function sahara_main 982 Sahara protocol error

And

Error function main 320 uploading image using Sahara protocol failed

So I'm a little lost as to what to do. I certainly wish I had read this thread better before I attempted this, but oh well lesson learned.

Again I'll cashapp $20 to anyone who can make this work from this state (if that's even possible) & get me bootloader unlocked)rooted

I am on an ATT g8x thinq. The phone is brand new and I just opened the box a couple days ago however I did OTA update to android 10 prior to beginning as I read it was a prerequisite to bootloader unlock.

Thanks
[LG G8 Guides, News, & Discussion] AtrixHDMan:
Since no one can confirm that they unlocked the bootloader on a Verizon LG G8 my best bet is to get a Pixel device.
[LG G8 Guides, News, & Discussion] AsItLies:
I don't have a vzw phone but unlocking them is just as easy as any other variant. The only difference, as covered in the original post, is you have to flash the included frp partition as vzw doesn't have the oem unlock ability in dev settings.

there are some nice pixel devices, but be aware, the p3 and p4 have been experiencing what appear to be hw issues, where the device goes into edl mode and cannot be gotten out of, basically bricked.
[LG G8 Guides, News, & Discussion] tanazzz:
Boy oh boy I'm screwed. I have the Sprint variant and I followed the instructions perfectly only to realize that for some reason QFIL did not back up abl_a abl_b boot_a and boot_b properly. All 4 files have an exact size of 32768KB which is WAAAAY larger than it should be ( it should be around 1MB). I basically got to the part where I successfully unlocked the bootloader and then tried to flash abl_a and abl_b with adb but ofc it spit out an error of VOLUME FULL because those files are 32 times larger than they should be. Now my phone is stuck on the LG V50 ThinQ boot logo indefinitely and I can't find the proper back-up files anywhere. Is there a way to save this phone or am I going to have to toss it in the bin?

edit: Here's a video of how exactly my phone is stuck right now:

IMG_0025.MOV

MOV File

1drv.ms

edit2: I forgot to mention that I reflashed the engineering abl_a on both abl_a and abl_b via QFIL after I failed to flash the large buggy abl_a and abl_b via adb so I do have access to both QFIL and to fastboot but phone will not boot to normal OS.
[LG G8 Guides, News, & Discussion] AsItLies:
So, first and foremost, when you back a partition up with qfil, it tells you at the bottom of the display where it's backing the file up. Go to that directory, after ea backup, and rename the file appropriately.

It's at that point, when renaming it, that you want to discover if there's a problem. Not when you go to use that backup.

If your backups are wrong (obviously they are), then a few things could have taken place; 1) be sure to only use a usb 2.0 port, anything else will probably corrupt the file 2) use a data cable, not a charging cable. 3) qfil is old software, so when you make a selection in the partition list, you have to select the partition first with a left click, then right click it to get the menu. (if you don't do this, and you just right click a partition, you'll actually be backing up the last partition that was selected - whichever one that happens to be).

sounds like now you need to find someone with a copy of the abl's for your device / variant. Flash those and start again. I'll look on the tele group, someone may have posted them.

No, doesn't look like anyone has posted those. I'd suggest, because sprint doesn't publish their kdz, download a different variant kdz, like verizon, use kdz extractor to get the images you need, and try those, they may work. And maybe join the tele group and ask if anyone could share their sprint ones. Good luck
[LG G8 Guides, News, & Discussion] tanazzz:
Thanks for your quick response. I miraculously was able to find a full backed up kdz and returned my phone to default. Now I've proceeded to flash a custom rom (Evolution). While it's true that it was an oversight on my part it's hard to know how big the files are supposed to be as I'm not used to flashing phones and unlocking bootloders lol. I have a feeling I'll brick it at least a few more times before I get the result I want but hey it is what it is you gotta learn somehow right.
[LG G8 Guides, News, & Discussion] tdusen:
Yes, it worked great on my verizon model. I have Magisk and root, but never got twrp installed.
[LG G8 Guides, News, & Discussion] AsItLies:
To get twrp to work, it's done a bit differently than it used to be done. Now, it has to be 'ramdisk injected', because there is no 'recovery' partition, it's part of the boot partition now.

So, basically, install magisk mgr apk. Use it to install magisk in boot. Flash boot using qfil. Now use twrp zip (for G8) and flash zip using magisk. Boot into twrp and do as normal, but also flash magisk again as it will be 'unrooted' after flashing twrp.

there are guides for that. Cheers
[LG G8 Guides, News, & Discussion] AtrixHDMan:
Ok I understand.
[LG G8 Guides, News, & Discussion] AtrixHDMan:
Do you know if I will be able to tether on AT&T without a tethering plan,but do have unlimited data.
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
Does anyone have the

You have the Sprint G8x variant, is there anyway you would be able to provide the MPT partition and the original ABL_A and B partitions, I accidently nuked the mpt late at night when I was qfil , I can still get in, but I dont have the original as it was never supposed to be flashed in the first place. Thank you if you can help out ! cheers if not
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
Just gonna throw this out again. I still need a good copy of the MPT partition from QFIL from an LG8x (sprint version) as well as the original ABL_A and B partitions. At this point I just want to sell the phone so I can put the money towards a pixel 6, as I just installed a new LCD that cost me 80 bucks. Thank you to anyone willing to help!
[LG G8 Guides, News, & Discussion] lanadelreywhore:
Does anyone happen to know if these steps would work running on Android 11? Id assume it wouldn't but can't find much online about unlocking BL on 11 or if rollback to 10 is possible on g8x thinQ
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
Dont Quote me on this, but I read somewhere that those lucky enough to get 11 on the LG8x can't use this exploit because the engineering ABL file provided is for Android 10.0 and 10 only. I cannot find the source I read that on though, so I am only adding it as my experience, there may be another way for your phone.
[LG G8 Guides, News, & Discussion] AsItLies:
@lanadelreywhore

I haven't done this on a11 yet, but do know that no, the engineering abl is not for 10 and 10 only. The engineering abl will **always** be the version the device was released with, in this case A9.

But, and it's a common misunderstanding, you **don't** use the engineering abl to boot the device, you use it **only** to do fastboot things with, such as unlocking the bootloader, or flashing a partition, etc.

So, to this point, we've used the a9 engineering abl to unlock a10 devices, there's really no reason it can't do the same with devices on a11.

cheers
[LG G8 Guides, News, & Discussion] lanadelreywhore:
Well then I shall give it a try and return here with clarifications to what I and surley others are wondering in regards to android 11. I have a subscription for Chimera so il try with that first. 🤞
[LG G8 Guides, News, & Discussion] alwaysthehardway69:
So this sounds eerily similar to my issue. What I determined happened with mine was the cable I was using was not a data cable, and it was causing the data overflow error because my backup was waaay to big, my goof was I was drinking and flashing (word to the wise, dont do it) and some other stuff got flashed because of how the archive scroll works on QFIL.

My advice would be first try a different cable/ different port to resolve the Sahara issue, also make sure you have the latest QFIL version. Doing those things I was able to at least get things to flash correctly without the 320 error.

Once you get to that point, you just need someone to give you a good clean backup of the ABL_A and B for your phone, which *should* work , and get you restored to the starting point. I am still holding out hopes someone on here can get me a copy of those partitions, but in theory once you have that you are good to go.

Now the file you downloaded, goes in both ABL_A and B partitions, confusing I know, but that engineering ABL goes in both spots in your partitions. I was able to get that far until I bricked it. You also need to have the fastboot tool installed on your PC so that you can give the unlock command. As long as you at least still get the LG splash screen, you should be able to get into the recovery menu and from there get to fastboot menu. If I had a working phone I would demo this in a video for you.