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

[justanutt]

It won't flash it?

Nope. I can flash it in lgup but I think it flashed to the inactive slot.

 

[Dr abeu]

it's finally work! You know how to install twrp? I have magisk and unlock bootloader

How do you managed to get past the sahara error in QFIL?
I tried an older QFIL version and older driver, but get the same error.
I'm on Android 10 21f version.

 

[Keke.ua]

How do you managed to get past the sahara error in QFIL?
I tried an older QFIL version and older driver, but get the same error.
I'm on Android 10 21f version.

Most importantly, who has the "sahara error" error, take out the sd card !! if it doesn't work, uninstall the old driver and install a new one. if you read the comments, the link to the new driver has already been dropped it's work on G820U21d

 

[Keke.ua]

How do you managed to get past the sahara error in QFIL?
I tried an older QFIL version and older driver, but get the same error.
I'm on Android 10 21f version.

Also when you unlocked bootloader you should flash your saved abl_a / abl_b with fastboot, not qfil. fastboot flash abl_a abl_a.bin
and fastboot flash abl_b abl_b.bin

 

[mangojain]

Will this work with T-Mobile G8?

Does your phone boot into fastboot mode?

 

[Faylynx]

How do you managed to get past the sahara error in QFIL?
I tried an older QFIL version and older driver, but get the same error.
I'm on Android 10 21f version.

I uploaded files qdloader for qfil here:

Phone

Folder

1drv.ms

32 and 64 bit depending on your system.

I can't root my phone anymore, after I messed it up the first time removing sprint apps, I reinstalled the original boot_b. If the phone gets stuckin a magisk version of boot_b bootloop get to fastboot via EDL and load the engineering abl_a to A & B, the n flash original abl's and boot in fastboot. But when I create a magisk boot_b.bin patched file I just get a bootloop.
At least I can get into fastboot and EDL mode over and over again.

On another note one time it switched to slot A and asked for a password so I had to go back to fastboot and use the command fastboot --set-active=b

This did not work with minimal ADB & Fastboot I downloaded the SDK version
And now the version of the qualcomm driver from the original link works no sahara error but it doesn't change anything about trying to flash the magisk.img to boot_b (my active slot)
I just want my MSL so I can edit my APN when not on Sprint!

 

[Dr abeu]

Thanks, I will try what you guys have said, hope it works.

 

[DrUnkeN_TiGeR]

i have really messed up guys when i was flashing abl_a back i accidentally flashed xbl_a over... sigh anyone got a copy of it they can share?

 

[Faylynx]

Thanks, I will try what you guys have said, hope it works.

Sooo, I have been up all night. And I finally flashed an entire set of Sprint Images which changed the entire look of my phone once it was factory reset, it of course brought up the enter password 30 tries screen, so I held down power and shut it down then reboot into recovery easy peasy.

Then during the course of events I've downloaded a file simply called basic flasher.
NOW with the older LG G8 Sprint loaded onto the phone I am able to enter ##diag# and access the phone with basic flasher read device info, choose LG, and finally get my phones SPC.

So, I can do what I've been trying to do, and on the other hand this is essentially a downgrade to a version which is entirely rootable so long as you install the entire system, factory reset, then follow the instructions as per another guide if neccessary. but I am not looking to root I just want to be able to change my APN settings and anything else that requires the SPC/MSL

I'll get to uploading ALL the files including the patched boot img that goes with the version of the phone to be flashed and the basic flasher program.

Which btw also brings me to the modified version of DFS which does not connect online and I guess it's a hacked version I really don't know but I was able to send the SPC to the phone with the basic flasher and once it is unlocked as I know from historical CDMA workshop methods you may now access the phone via serial port from your desired program.

And in DFS I am able to read/write just about everything so I am finally done with this.



and so now I am here: (Which is for: DFS guide)

Unlock Sprint LS990 for any CDMA carrier!!!

Hi guys, I spent a lot of time trying to do this and would like to share my SUCCESSFUL efforts with you all! First let me clarify some of the terminology. Sprint and other carriers program their hardware EPROM to their network specs and lock...

forum.xda-developers.com

 

[DrUnkeN_TiGeR]

Sooo, I have been up all night. And I finally flashed an entire set of Sprint Images which changed the entire look of my phone once it was factory reset, it of course brought up the enter password 30 tries screen, so I held down power and shut it down then reboot into recovery easy peasy.

Then during the course of events I've downloaded a file simply called basic flasher.
NOW with the older LG G8 Sprint loaded onto the phone I am able to enter ##diag# and access the phone with basic flasher read device info, choose LG, and finally get my phones SPC.

So, I can do what I've been trying to do, and on the other hand this is essentially a downgrade to a version which is entirely rootable so long as you install the entire system, factory reset, then follow the instructions as per another guide if neccessary. but I am not looking to root I just want to be able to change my APN settings and anything else that requires the SPC/MSL

I'll get to uploading ALL the files including the patched boot img that goes with the version of the phone to be flashed and the basic flasher program.

Which btw also brings me to the modified version of DFS which does not connect online and I guess it's a hacked version I really don't know but I was able to send the SPC to the phone with the basic flasher and once it is unlocked as I know from historical CDMA workshop methods you may now access the phone via serial port from your desired program.

And in DFS I am able to read/write just about everything so I am finally done with this.



and so now I am here: (Which is for: DFS guide)

Unlock Sprint LS990 for any CDMA carrier!!!

Hi guys, I spent a lot of time trying to do this and would like to share my SUCCESSFUL efforts with you all! First let me clarify some of the terminology. Sprint and other carriers program their hardware EPROM to their network specs and lock...

forum.xda-developers.com

i sent you a pm

 

[Faylynx]

I got the previously jank phone downgraded, and then magisk patched boot b (backing up abl a,b, and boot a&b first just in case,.. EDL flashed boot_b with the magisk patched boot_b and got root on my phone.
Although I'm android 9 now, but is rooted!

 

[sarraBell]

Hi. I've followed your instructions all the way up to rebooting into fastboot - with both ways you listed, all my phone does is reboot, but not into fastboot. Can you help?

Btw, thanks for this.

 

[Faylynx]

This is the guide that only works for specific variants:

g8_guide.pdf

drive.google.com

In this guide is link to the "20d backup" it is 7-8gb in size.

If you are not yet bootloader unlocked and stuck and don't mind downgrading just flash engineering abl_a to abl_a and abl_b , boot into flashboot, from command or powershell run fastboot oem unlock and unlock your bootloader first.

If you are bootloader unlocked and for some reason cannot boot or re-root your phone and don't mind downgraded to android 9, then what I did was to:

Enter EDL and in QFIL I flashed (from the aforementioned sprint 20d backup) ALL the .img files to their respective slots. Not all of them are going to be used so if it matches it flashes.

Then I reboot into Recovery and Factory/Data Reset.

Now it boots into Android 9.

Then install Magisk, without SD Card or SIM in phone in Airplane mode to prevent updates, and I disabled Lookout App Just in case so it will not interrupt the boot patch process.

Patch the boot_b downloaded from EDL, or in this case the one in the folder with all the img's should work since it should be the same file but just to be safe again I used Read and used the one from the phones partition after rebooting once in case it changes.

Reboot into EDL and with QFIL use the magisk patch according to this threads instructions basically continuing from where I am - "bootloader unlocked : install/patch with Magisk"
-- I patched boot_b.bin then QFIL flashed boot_b with the magisk output img file..

Now the phone boots and is rooted.

Now Basic Flasher works either because it's android 9 or because it is rooted.
I just uploaded basic flasher to the onedrive phone folder I've posted a link to.
Basic Flasher is SAFE it will require to turn off browser security to download and may show a Net Framework error upon launch, the app is password protected password is oriax123

put phone into diag mode ##3424#
Make sure usb option is to Charge only!
run SCAN: next to scan select SERIAL port with the COM number NOT MODEM.
Press Connect, Press Read Device, on Method select LG, Press read SPC
Press Send SPC
Your phone is now unlocked for service programming VIA Serial Port.

 

[bambi007]

Hi to All, I successfully unlocked bootloader and installed magisk for my LG 8GX THINQ.
But I have one major problem: There is NO Sound whatsoever. I can change volume to max and I do not hear anything.
Even when plugging in the headphones I do not hear any sound. So it seems a software problem.
But it was working the day before. Also I can not play any whatsapp sounds or youtube videos. they give error message, that the audio file can not be played. seems that I lost my codecs?!
Does anyone know how this could have happened and what I can do? I am on Android 10, 20d-eea-xx and model is
LM-G850EMW

Edit:
Solved by flashing a patched magisk from my original boot_b

 

[Dr abeu]

I uploaded files qdloader for qfil here:

Phone

Folder

1drv.ms

32 and 64 bit depending on your system.

I can't root my phone anymore, after I messed it up the first time removing sprint apps, I reinstalled the original boot_b. If the phone gets stuckin a magisk version of boot_b bootloop get to fastboot via EDL and load the engineering abl_a to A & B, the n flash original abl's and boot in fastboot. But when I create a magisk boot_b.bin patched file I just get a bootloop.
At least I can get into fastboot and EDL mode over and over again.

On another note one time it switched to slot A and asked for a password so I had to go back to fastboot and use the command fastboot --set-active=b

This did not work with minimal ADB & Fastboot I downloaded the SDK version
And now the version of the qualcomm driver from the original link works no sahara error but it doesn't change anything about trying to flash the magisk.img to boot_b (my active slot)
I just want my MSL so I can edit my APN when not on Sprint!

This is actually the first time I root a phone, and I'm still stuck at this same error in QFIL, even after installing your QDLoader.

Just by messing with the bloatwares, you can't boot your phone anymore? How strange. I haven't tried to remove mine yet.

The thing I hate most is the sprint logo on boot.

 

[Faylynx]

I sucessfully used shortcut master lite to locate the edit for the apn on the Sprint G8 thinQ!!! So now it can be programmed for ANY Network! And now I have the LTE conncection on H2O wireless on the Sprint LG G8 Thinq.
The main settings in the phone menu remain greyed out but added APN's now appear but can only be edited in the App. Via
com.lge.hiddenmenu (409 items) Thsi will have an Android Icon next to it.

-> Scroll down to APN Editor (This may require going to the APN Unlock first, which only need to be clicked on but when I found that first I hoped the main menu would unlock, so go unlock it if the APN editor doesn't work)
APNEditor is about half way down on the scroll bar.

NOTE! -> When you click on some of these menus a pop up will appear in order to continue you MUST CLICK QUICKLY ON LAUNCH TWICE IN A ROW. The very first time Superuser Permission will pop up for the App.

[GUIDE][Edit APN Settings _No Root] Enable Hotspot

**Welcome to the Fox Den!** This is a short guide for accessing the APN settings to edit, as well as enabling Native Hotspot while you're in there. This method involves using Shortcut Master Lite to access the APN settings so that it can be...

forum.xda-developers.com

Thank you so much for your assistance!

Verified by sending a test MMS & browser works.

Listen to my Mixes!

https://soundcloud.com/user-677844650

 

[johnnycm77]

I've really messed up and now I can only get my phone into edl mode. It won't start or anything. No download mode or anything. Just EDL and that's it. Can someone please help?

 

[Faylynx]

I've really messed up and now I can only get my phone into edl mode. It won't start or anything. No download mode or anything. Just EDL and that's it. Can someone please help?

You need to let us know what type of phone you have first, including the Carrier it came from.
If it's LG G8 Thinq Sprint you can just use EDL to flash android 9, you will have to download 7GB
If it's another carrier you can enter Emergeny mode and hope for a flashable KDZ to be online.
Sprint does not share it's KDZ's so a Sprint phone requires, .. more work.

If you have a different model you should check a forum specific to your phone for recovery.

 

[robnitro]

I sucessfully used shortcut master lite to locate the edit for the apn on the Sprint G8 thinQ!!! So now it can be programmed for ANY Network! And now I have the LTE conncection on H2O wireless on the Sprint LG G8 Thinq.
The main settings in the phone menu remain greyed out but added APN's now appear but can only be edited in the App. Via
com.lge.hiddenmenu (409 items) Thsi will have an Android Icon next to it.

On the g8x sprint, I cannot find such menu nor com.lge.hiddenmenu.... frustrating

 

[Bronnel]

is there a way to enable the second sim on the sprint model (enable dual sim ) , as far as I know it was disabled by software only