Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose

AntonioxD90 · Feb 17, 2021 2 0 11

[QUOTE = "rjohnson2, publicación: 84512591, miembro: 4639441"]
Gracias, ¿sabes si hay alguna forma de lograrlo una vez que tengamos desbloqueo y root?
[/CITA]
Entonces solo me sirve este proceso para ser root?

(

nitrosbacksh94 · Feb 19, 2021 at 1:55 AM

Device doesn't show with 'fastboot devices' far as I can tell everything so far has been successful. Think I have bad drivers. Any advice?

luffyacekun · Feb 19, 2021 1 0 11

Hi, Thank you for the tutorial. I have rooted my phone once. My phone is v50 sprint. I follow another tutorial to remove sprint's bloatware and bootup animation.
I've use magisk to flash twrp (and lost root), then twrp some how cannot mount my storage so I cannot flash anything.
I decided to go back qfil to flash magisk back but after flash magisk image I've got bootloop.
I went back to qfil and flashed stock boot_a.bin. then I can boot but there is something strange. the sprint's boot animation disappeared, my phone show LG's boot animation.
Now i can totaly using my phone but I cannot root it one more time. follow the button combine to fastboot will direct me to the recovery (image 2: something like this, this is not my phone, I downloaded this image from internet)
I've tried to patch my boot_a.bin again using magisk manager but still get bootloop.
I have lost my fastboot menu, is there anyway can I get it back?
p/s: I am not a native speaker, so if there is some thing hard to understand, please let me know.

ldeveraux · Feb 20, 2021 at 5:55 PM

I realize the guide says to flash the Verizon frp for the G8 only, but would I also need to do this with a Verizon V50?

Gamercoolss · Feb 21, 2021 at 1:49 PM

Please anyone, how to solve this error? im stuck right now
ERROR:function:sahara_rx_data:276 Unable to read packet header. Only read 0 bytes.

this is the full log

mangojain · Feb 21, 2021 at 5:21 PM

Seasee606 said:
Disclaimer: I am not responsible for any problems from using this guide.
Works for G8, G8s, G8x, and v50
Confirmed working on G8 and v50

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.

Are you even aware that many G8 models do not allow booting into fastboot? Your post should carry a very strong warning at the top regarding this point.
I nearly bricked my phone trying this procedure , and where were you when I asked for help to flash back the stock rom??
You get a double thumbs down from me!

Faylynx · Wednesday at 6:18 AM

Tugboat Tony said:
I'm working with Sprint g8 Thinq LM-G820UMKIT on Android 10. Every time i go to Partition Manager it starts connecting to my phone and sits for about a minute then it come back with an error saying "DownloadFail:Sahara Fail:QSharaServerFailProcess fail".

Its on Flat build
Its has the right programmer path set to the firehose file
and it is set to ufs storage type

Any suggestions?

Hello, I had this problem and found a QFIL forum stating this is a problem to do with the driver. After trying to just reboot with driver sig off on windows 10 and it still didn't work I searched for a new driver and uninstalled the Qualcomm modem driver that was previously installed. It worked just fine and I finished the entire rooting process with the driver from here. I also backed up most of the files I gathered from all the sites along the way but only the driver and the magisk manager is added to my public folder.
This is my Onedrive public folder you should be able to download by checking to left side of the file then download will appear above on the left, I just logged out and checked it myself.

Public

Folder

1drv.ms

[edit]
I just searched my history and found the page that also has the 32 bit driver! So many drivers too many pages!

Download Qualcomm HS-USB QDLoader 9008 Drivers & How to Install

Download and install Qualcomm HS-USB QDLoader 9008 drivers on any Windows 10, 8.1, 8, 7 PC with 32-bit or 64-bit architecture.

www.thecustomdroid.com

[Edit]
Here's another link, if you need files follow guides that incur similar processes. LGMobileDriver_WHQL_Ver_4.4.2.exe Windows

LG G8 ThinQ: How to flash stock firmware, Unbrick/restore LG G8 ThinQ back to stock - My LG Cell Phones

Need to sideload the stock kdz firmware onto your LG G8 ThinQ? Follow below guide to flash the stock firmware with LGUP and restore your LG G8 ThinQ back to stock. What You Need: LGUP 1.15 – LGUP_cmd.exe LGU USB Drivers LGUP DLL for LG G8 ThinQ Stock firmware for your LG G8 model Step ... Read more

www.mylgphones.com

Recovery Firmwares

LG G820UM(LMG820UM) aka LG G8 ThinQ - LG-Firmwares.com

LMG820UM download the firmware for free! Detailed installation instruction. Video review of the model and its features. User feedback and latest news.

lg-firmwares.com

Anyone know where to find more pages like this one please msg me links:

How to Create a Custom Firmware - Android Custom Firmware/iPhone Jailbreak

sites.google.com

ldeveraux · Feb 23, 2021 at 4:02 PM

ldeveraux said:
I realize the guide says to flash the Verizon frp for the G8 only, but would I also need to do this with a Verizon V50?

Would really like some help on this before I pull the trigger on a V50.

justanutt · Feb 23, 2021 at 4:07 PM

I need help with my Verizon lg g8. I am on 20a. I tried to unlock the bootloader and somehow got my phone hosed. I can get to download mode, and even flash in lgup. The problem is after the flash, lgup says it's complete but does not change the system to 20i. It stays at 20a and hangs at logo screen. It will not boot completely. Any help would be appreciated.

Also, when I reboot it does the circle erasing data thing and then goes to the boot logo screen.

justanutt · Feb 23, 2021 at 4:35 PM

Does anyone have a Verizon pie kdz?

sinkoo1979 · Feb 24, 2021 at 3:46 AM

justanutt said:
Does anyone have a Verizon pie kdz?

go to https://lg-firmwares.com/
only have android 10 kdz's

justanutt · Feb 24, 2021 at 3:47 AM

sinkoo1979 said:
go to https://lg-firmwares.com/

They don't have the pie version

johnnycm77 · Feb 24, 2021 at 4:50 AM

Does this work on the Verizon g8?

Faylynx · Apr 10, 2020 8 2 3

It is possible to backup your phone and someone with a rooted phone should be able to create files for someone else to download but you would have to find them that tutorial, I think there was one for the g8 but things like these are ordinarily universal if you use the terminal on the phone to identify partitions and then modify the instructions for your device. I find many guides in different phone root/unlock guides that will work on any phone and would probably help if there was a forum for all the universal stuff and how to get your devices information which usually involves installing terminal and running cat proc etc. linux stuff

[GUIDE] Backup/Restore/Repair Your EFS Partition [LS970]

LS970 EFS Backup/Restore/Repair Every rooted Optimus G user should backup their EFS partitions! Thanks goes to interloper, toastcfh and everyone in #lg-optimus-g that helped out. PM me if interested in my Sprint LGOG LS970 EFS repair...

forum.xda-developers.com

Keke.ua · Nov 2, 2020 6 1 3

DownloadFail: Sahara Fail: QSharaServerFailProcess fail ". Such error when selecting partition. Qfil used 2.0.3.5 / 2.0.2.3 the result is the same lg g8 sprint android 10 g820u21d

robnitro · Feb 21, 2010 54 7 28

Keke.ua said:
DownloadFail: Sahara Fail: QSharaServerFailProcess fail ". Such error when selecting partition. Qfil used 2.0.3.5 / 2.0.2.3 the result is the same lg g8 sprint android 10 g820u21d

I didn't have luck with windows 10, so I used a windows 7 pc. You might want to try that instead.

johnnycm77 · Feb 25, 2021 at 12:53 AM

robnitro said:
I didn't have luck with windows 10, so I used a windows 7 pc. You might want to try that instead.

I haven't had any luck with 8.1 either.

Faylynx · Apr 10, 2020 8 2 3

johnnycm77 said:
I haven't had any luck with 8.1 either.

I put a different qualcomm driver in my onedrive https://1drv.ms/f/s!AMhFHd3Kpd2RaQ phone folder link is above that worked for me I don't think it's windows, if it was windows would have told you the driver isn't signed when you installed it. QDLoader HS-USB Driver is the name of the file just pick 32 or 64 bit for your system

Faylynx · Apr 10, 2020 8 2 3

justanutt said:
Does anyone have a Verizon pie kdz?

http://dl02.gdms.lge.com:5006/dn/downloader.dev?fileKey=FW2AN0J7C2CPAJL016A315Z/G820UM10g_00_VZW_US_OP_0918.kdz

Software Version: G820UM10G_00
Buyer Suffix: VRZ
Carrier: Verizon Wireless
Model: LMG820UM, G820UM, LM-G820UM
Device: LG G8 ThinQ
OS Version: Android 9.x Pie
Size: 4.00GB
Filename: G820UM10g_00_VZW_US_OP_0918.kdz
https://lgup.net/lg-g8-thinq/

justanutt · Feb 25, 2021 at 4:33 AM

Faylynx said:
http://dl02.gdms.lge.com:5006/dn/downloader.dev?fileKey=FW2AN0J7C2CPAJL016A315Z/G820UM10g_00_VZW_US_OP_0918.kdz

Software Version: G820UM10G_00

Buyer Suffix: VRZ

Carrier: Verizon Wireless

Model: LMG820UM, G820UM, LM-G820UM

Device: LG G8 ThinQ

OS Version: Android 9.x Pie

Size: 4.00GB

Filename: G820UM10g_00_VZW_US_OP_0918.kdz

Thanks. But I still can't get it to boot. I think I will have to try something in QFIL.

Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose

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