Same thing... What I have noticed is when the phone reboots, if I continue to hold down the Vol- button it will continually reboot every 15-20 seconds. Almost like it tries to go past EDL and just reboots itself.
anyone got GSIs to work on this phone? When flashing a GSI in fastboot, it "flashes" to system partition instantly after pushing and writes nothing. Trying to overwrite system_a & system_b in QFIL just bootloops the phone.
nvm got it, u just need to flash with qfil and use a magisk patched boot img instead of stock or else it'll bootloop
nvm got it, u just need to flash with qfil and use a magisk patched boot img instead of stock or else it'll bootloop
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thanks for this guide !
worked good on my korean V50 ! (V500N)
I kind of had a nice but strange surprise though 
:
after I did
"fastboot oem unlock"
I thought I would have to do
"fastboot flash abl_a abl_a.bin" and "fastboot flash abl_b abl_b.bin"
but the phone rebooted without issue (telling me first I was bl-unlocked)
is there sthg special on my phone ? do you maybe have some idea why this step was not needed ??
PS :
answer below (why I had to "fastboot flash abl_a abl_a.bin" and "fastboot flash abl_b abl_b.bin" )
worked good on my korean V50 ! (V500N)
:after I did
"fastboot oem unlock"
I thought I would have to do
"fastboot flash abl_a abl_a.bin" and "fastboot flash abl_b abl_b.bin"
but the phone rebooted without issue (telling me first I was bl-unlocked)
is there sthg special on my phone ? do you maybe have some idea why this step was not needed ??
PS :
answer below (why I had to "fastboot flash abl_a abl_a.bin" and "fastboot flash abl_b abl_b.bin"
)
Last edited:
Oh I had to "fastboot flash abl_a abl_a.bin" and "fastboot flash abl_b abl_b.bin" otherwise my software version would be LM-G850N20z (instead of V500N20z)thanks for this guide !
worked good on my korean V50 ! (V500N)
I kind of had a nice but strange surprise though
after I did
"fastboot oem unlock"
I thought I would have to do
"fastboot flash abl_a abl_a.bin" and "fastboot flash abl_b abl_b.bin"
but the phone rebooted without issue (telling me first I was bl-unlocked)
is there sthg special on my phone ? do you maybe have some idea why this step was not needed ??
Well THIS was certainly a welcome surprise! I have a Verizon branded, but network unlocked V50thinQ. I hate both Verizon, as well as being bootloader locked. Despite the general impression that this tutorial wouldn't work for my phone, I am happy to report that it DID! I'm sticking with just bootloader unlock for now. A couple of weird things:
I wasn't able to fastboot flash my backed up abl_a and abl_b back onto my device, I kept getting an error which was something to the effect of 'Failed, Flash partition full' . Rebooting into bootloader and trying it again yielded the same result. Sooo, I left the engineering abl_a and abl_b as is, and everything has been just dandy. Phone is working great, I've debloated verizon... real easy access to fastboot.
Followed the tutorial exactly as it was laid out, including flashing the frp_verizon.img
I wasn't able to fastboot flash my backed up abl_a and abl_b back onto my device, I kept getting an error which was something to the effect of 'Failed, Flash partition full' . Rebooting into bootloader and trying it again yielded the same result. Sooo, I left the engineering abl_a and abl_b as is, and everything has been just dandy. Phone is working great, I've debloated verizon... real easy access to fastboot.
Followed the tutorial exactly as it was laid out, including flashing the frp_verizon.img
Nice to finally see someone confirm that this can be done on the Verizon V50 (LM-V450VM). I'm assuming you're using it on Verizon or one of its MVNOs. I'd be curious to see if you can eventually get root access/Magisk to work.
Soon, man. Next couple of days and I'll be joining the rest of you rooted Magiskans
Also, I'm using a TracFone sim of the At+t type... Unfortunately the phone would not work on cricket. Just inserting my sim would shut my service down, and I had to call cricket and say I was sorry, for putting my cricket sim in the phone, and then they scolded me and turned my service back on for that sim.
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Ok, so maybe you unlocked the bootloader, still not sure. But you didn't even root? How do you consider this a success then?Soon, man. Next couple of days and I'll be joining the rest of you rooted Magiskans
Not sure what I'm supposed to see there other than the fact that you've rebooted to bootloader. Does it say it's unlocked there somewhere? You must have used your potato camera again
Is TWRP not available from this tutorial?
Sir, allow me to explain a bit better here: if you have a phone which can boot to this screen which is best known as fastboot, you have an unlocked bootloader. At least with these phones. Unfortunately, the screenshot function isn't available from fastboot to my knowledge.Not sure what I'm supposed to see there other than the fact that you've rebooted to bootloader. Does it say it's unlocked there somewhere? You must have used your potato camera again
Attachments
I will. And if you become aware of some custom roms for these phones I'd appreciate if you'd let me know. So I could then see the need to get twrp installed and flash these roms.
And good day to you.
In case anyone else is wondering, for those of us who need VoLTE, any AOSP or LineageOS-based ROM on any LG phone will be a no-go since they'll likely never have it working due to LG's closed-source proprietary files.
Sorry, I doubt I would consider it seriously until TWRP is flashable, multiple users have had success, and the OP offers assistance.
Download Fail:Sahara Fail:QSaharaServer Failrocess fail
any fix please
Lg v50 500N 20z
unlocked bl
rocess failany fix please
Lg v50 500N 20z
unlocked bl
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good. little by little. I struggled a little with my Velvet but in the end it's possible
1
When it was my turn on the LG Velvet (845) I couldn't get back into fastboot mode. I did it by reaping. As for the partitions, I did it on both now, as for modifying the boot.ing file with magisk, only do it on one in my case on "A" because if you do it on both, the OS tends to crash (closing applications , and a lot of lags).
There is also a command by "CMD" that allows you to see the status of the bootloader, and in the system "activate OEM unlock" appears disabled (it does not allow modification). Try to back up all the files you modify. and the error that appears "Sahara" in my case I had to reinstall drivers and restart the PC. Also the phone restarts and I try until the PC recognizes it as 9008.1
If you can't with the key combination, try from "CMD" with the command "Fastboot boot recovery ×××.img" You have to do this when the screen is black 9008. You can also try with "Fastboot Flash recovery ×× ×.img" but that replaces the original recovery so I recommend making a backup. On LG it is sometimes difficult to enter the custom recovery so concmd is the fastest method. This is what I do with my: Mi mix 2s, Mi 11 and previously the LG V50.
On the V50 there was a key combination to start the custom recovery. . . . I'm going to investigate again to see if I can find it since I had it years ago.1
Write the engineering abl_a and abl_b back to the device in Qfil and reboot!That will give you access to fastboot mode.1
Good possibility!The procedure is write engineering abl_a and abl_b first.Unlock the bootloader via fast boot.Then do the root procedure as normal with the boot_a and boot_ b file writes.Reboot the device.You should still have fastboot and root in place.It's the same as the LG V60 procedure since the file system is practically the same. -
83Disclaimer: I am not responsible for any problems from using this guide.Works for G8, G8s, G8x, and v50
Confirmed working on G8 and v50
Requirements: Android 10
QFIL: https://drive.google.com/file/d/1P7uGjIirqGRdkwlxgKf_idepDlv6_u-q/view?usp=sharing
QFIL Driver: https://drive.google.com/file/d/1sPJm1RuSoVX9JMEs-Gx8xNuEDadO6rpj/view?usp=sharing
LG Mobile Driver:
ADB: https://drive.google.com/file/d/1nvlwaicFpDN_4DGR0BZRWUDgwQwYzOhS/view?usp=sharingLG Mobile Phone - Drivers and Software Downloads | LG USA Support
LG Mobile Phone - Drivers and Software...www.lg.com
Firehose: https://drive.google.com/file/d/1ekI_d2-P9GdoakkSgk2hK1WHbQLIPlTQ/view?usp=sharing
abl: https://drive.google.com/file/d/1sye4gXsDfD8JVF5qfAMG_GDxSLKY6J6Q/view?usp=sharing
Verizon LG G8 only frp: https://drive.google.com/file/d/1294cXerj2_EkeGw1p38CcVPuyRfdS9N5/view?usp=sharing
This Verizon FRP img was only tested on LG G8 Verizon and is not recommended to be used on other Verizon Variants as it will prevent the phone from booting.
Bootloader Unlock
Unlocking your bootloader will erase all data on your phone
First Install LG Mobile Driver, QFIL driver, and QFIL (Select first option, WWAN)
All Variants other than Verizon: Go to Settings, > System > About Phone > Software Info > Tap Build Number 7 Times.
Go back to Settings > System > Developer Options. Check Enable OEM Unlock
Boot you phone into EDL
You can make sure that your phone is in EDL by plugging your phone to your pc and checking the Device Manager > Ports > Qualcom HS-USB QDLoader 9008 (COM#)
Hold Vol- and Power, when the phone screen turns off to restart begin quickly pressing the vol+ but keep holding vol- and power.
Here is a youtube video of how to boot to EDL:
Open QFIL, Select your Phone's Port, Select Flat Build under Select Build Type, Select the Firehose.elf file under Select Programmer, on the bottom right of QFIL select UFS as the Storage Type.
Click Tools > Partition Manager.
Find Abl_a and right click on it and select Manage Partition Data. Click Read to backup your abl_a.
Go to Windows Explorer and go to C:\Users\Username\AppData\Roaming\Qualcomm\QFIL\COMPORT#
Rename your ReadData_ufs_Lun4.bin to abl_a.bin
Do the same with abl_b, boot_a, and boot_b.
Boot_a and Boot_b is for Magisk Root. Skip if you only want Bootloader Unlock.
Close Partition Manager. Your phone will reboot to EDL on its own after pressing OK. Wait on that.
Go back to Partition Manager and right click on abl_a again then select Manage Partition Data, then Select Load and choose the abl engineering file.
Do the same for abl_b.
Close Partition Manager. Your phone will reboot to EDL on its own after pressing OK. Wait on that.
Reboot to Fastboot. Hold Vol- and Power then release power when reboot starts and keep holding vol-
If that doesn't work unplug and Power off your phone. Hold vol- and plug it in. It should go into fastboot.
Once your phone is in Fastboot it should say
Device State: Locked and Active A/B Slot - _a or _b
remember whichever slot your device says and stay on that slot, you may risk bricking if you change to the other slot. You also need this for Root later.
Extract the ADB.zip
open a Command Prompt and change the directory to the adb folder you just extracted
cd C:\adb
runfastboot devicesin that command prompt. it should show "LMG850UM fastboot"
Move the backed up abl_a.bin and abl_b.bin to the adb folder, also frp_verizon.img if you have the verizon LG G8.
Verizon LG G8 only: Runfastboot flash frp frp_verizon.imgthenfastboot reboot-bootloader
Reboot to Fastboot. Hold Vol- and Power then release power when reboot starts and keep holding vol-
If that doesn't work unplug and Power off your phone. Hold vol- and plug it in. It should go into fastboot.
Runfastboot oem unlock
Select Unlock The Bootloader with your arrow keys and press the Power Button
Reboot back to the Bootloader. Unplug your phone, Power off, Hold Vol-, then Plug it in.
Your phone should say Device State – unlocked now
Nowfastboot flash abl_a abl_a.bin
andfastboot flash abl_b abl_b.bin
Finish withfastboot reboot
Your Phone Is now Bootloader Unlocked.
Magisk Root
Only do this after you have followed the above guide and have Unlocked your Bootloader.
Magisk
Xda Forum: https://xdaforums.com/f/magisk.5903/
Xda Thread: https://xdaforums.com/t/magisk-the-magic-mask-for-android.3473445/
Github Page: https://github.com/topjohnwu/Magisk
Find the slot you are on from the fastboot bootloader earlier
Go to Windows Explorer and go to C:\Users\Username\AppData\Roaming\Qualcomm\QFIL\COMPORT#
Transfer to your phone the boot_a.bin or boot_b.bin that you backed up in the COMPORT# folder.
Download and install Magisk Manager.
Open Magisk Manager and beside Magisk hit "Install" then "Select and Patch a File" and select the boot_a.bin or boot_b.bin.
After Magisk has patched your boot img you should have magisk_patched#####.img in your phones Download folder.
Transfer it to your PC.
Reboot to EDL
Open QFIL. Click Tools > Partition Manager.
Find the slot you are on from the fastboot bootloader earlier and right click on either boot_a or boot_b and select Manage Partition Data.
Click Load and select the magisk_patched#####.img file you transfered from your phone.
Wait for it to finish then Close Partition Manager. Your phone will reboot to EDL on its own after pressing OK. Wait on that.
Reboot to System by holding vol- and power till your phone reboots out of EDL then release both.
Your phone is now Bootloader Unlocked with Magisk Root.
Hopefully this helps.
This guide was written by me, but the information was provided by Cloud1250000.
If there are any errors let me know and I will fix.8Success!
I have a G8 (LM-G820TM, US T-Mobile variant) that had been updated OTA to Android 11 (G820TM30b). I used Windows 10 Pro 64-bit, version 21H2, on a Dell Latitude E6230 (That shouldn't matter, but is provided for reference).
Some notes for anyone else doing this, and wisdom I got from more experienced commenters in this thread:
- Read all the instructions carefully. Read every word slowly. Do what you need to do to make sure you don't skip any steps. If necessary, print out the instructions and cross them off one by one.
- EDL Mode doesn't show anything on the screen. You'll only know if your phone is in EDL mode if your computer makes a USB Connected chime, and it shows up under Ports in Device Manager.
- Use a good quality USB 2.0 cable and USB 2.0 port. QFIL is finicky, and doesn't like USB 3 ports. If you get a Sahara error, use a different cable, a different port, or a different computer.
- When you back up your abl_a and abl_b partitions, they should be about 1MB. (1024KB exactly, in my case). If they're significantly larger, then they didn't read correctly. You'll need to flash them back later, and if they didn't read correctly, you can't restore them.
- The provided engineering abl_a should be flashed to abl_a and abl_b.
- The engineering abl should only be used to enable fastboot temporarily so that you can unlock the bootloader. You can't leave it there - you have to flash your original abl_a and abl_b back to your phone once the bootloader is unlocked. If you leave the engineering abl on there, you'll either get a bootloop or your touchscreen won't work.
- When booting into fastboot for the first time, Windows doesn't use the correct (or any) driver, so the phone just shows up as "Android" in Device Manager, and it doesn't show up when you do "fastboot devices". I had the LG Mobile Driver installed per the instructions, so it was just a matter of pointing Windows at the correct driver. In Windows 10 it was Update Drivers -> Browse my computer for drivers -> Let me pick from a list of available drivers on my computer -> Android -> LGE Mobile ADB Interface
6
Okay I got it this morning. Reread it still didn't understand but had some hunches so check around the net about LG dual sim unlocking and then it clicked. It was meant to say load the engineering file provided into both abl_a and abl_b
Thanks for the guide maybe rephrase that part. I was super confused for a bit, would never overwrite something with a different name without being super clear.5
