yashsingh1/xdaforums huggingface dataset:
[OnePlus 8T Questions & Answers] androidbuff123:
Use the MSM tool. It'll convert it to stick and relock the bootloader. I have the US TMobile version and I have unlocked and relocked (when reverting to stock using MSM tool) ans I did not have any issues with fingerprint or any other issues.
[OnePlus 8T Questions & Answers] akkiman.01:
I heard it will give problem to persist file resulting in fp scanner failure. I can understand what you are saying. I am bit worried as I installed some modules on magisk. Will it be ok?.

Also, I'm believing in you. Can u please tell me the procedure on how to do so
[Samsung Galaxy M21 Questions & Answers] Clutchmaster_OP:
Please developers our samsung m21 gets lagier and lagier everyday because of the crappy exynos 9611,so pls pls work for many users who are asking and get us a good rom like havoc asap,and even there's problem with the twrp,there's not wipe system partition option itself!:(

Pls pls i beg you alllll
[Samsung Galaxy M21 Questions & Answers] Clutchmaster_OP:
someone help!!!!!!!!!!!!!!!!!!
[Samsung Galaxy M21 Questions & Answers] OldNoobOne:
Please Devs get us a good rom like RR for Samsung Galaxy M21 Android 11, Not GSI please, make ROM. I'll pay you 1 million dollas if you make ok please make soon. Thanks in advance.
[Samsung Galaxy M21 Questions & Answers] BobaBoi69:
Name the rom

I will try making it in android 12

@OldNoobOne

@Clutchmaster_OP
[Samsung Galaxy M21 Questions & Answers] ghazz_<>:
How about havoc or crdroid with camera2api ,Samsung camera drivers,safety net bypass,volte (if you can),double tap to wake,proximity sensor for calls

It doesn't need to have all the requested features just cram in as much as you can
[Samsung Galaxy M21 Questions & Answers] BobaBoi69:
Okay sure
[Samsung Galaxy M21 Questions & Answers] ghazz_<>:
thanks

also for which m21 you are building your rom for

sm-m215f(OLD) or sm-m215g(NEW)

because i own the old one
[Samsung Galaxy M21 Questions & Answers] BobaBoi69:
No

No worries

Its for the te old one

M215f

@ghazz_<>
[Samsung Galaxy M21 Questions & Answers] ghazz_<>:
can volte work?

because you know, drivers are proprietary

also can you help me build a rom for the old m21?

i am a total noob at building roms and the tutorials on google are outdated
[Samsung Galaxy M21 Questions & Answers] BobaBoi69:
Sure

but lemme get freed up i am not much free rn soo i wont be available for now
[Samsung Galaxy M21 Questions & Answers] ghazz_<>:
Ok thanks
[Samsung Galaxy M21 Questions & Answers] OldNoobOne:
So sweet of you friend, but I like A11 way more than A12 & A13 because gugle messed up the UI on 12/13, everything is biiiiiiiiig UI LOLS :p also lesser options than previous versions.

CrD11 V316 GSI works perfectly fine reminds me of RRQ ROM (y) (except a few things like Power-off Charging Animation & bootanimation, but its ok)

---------------------------------------------------------------------------------------------------

Now RiceDroid Full ROM is published but it doesn't boot (error:2001: repartition op list issue, System R/W issue )

---------------------------------------------------------------------------------------------------
[Samsung Galaxy M21 Questions & Answers] ghazz_<>:
Well I prefer android 10 as

I get better performance .

Which do you think is better one ui 2.5 or crdroid a11 gsi
[Samsung Galaxy M21 Questions & Answers] OldNoobOne:
crdroid A11 I would say, I love OneUI 3.1 though but customizations not comparable to CrD.
[Samsung Galaxy M21 Questions & Answers] ghazz_<>:
Compared to oneui 2.5
[Samsung Galaxy M21 Questions & Answers] OldNoobOne:
2.5 I don't recollect now as it was older version but OneUI is great shamshung rom whichever version it be. Among custom roms I admired RRemix & Crdroid, the rest of the roms I didn't do a comparative performance analysis like rom devs do but as a user RRemix & Crdroid felt way better overall than the rest out there of the ones I had tried. I have tried almost all the GSIs though among A10, A11, A12 and A13.

P.S.- It all depends on the use although in my opinion A7 and then A10 was the most remarkable and peak of all the OS versions of andoid i noticed and probably A13 too, so I think after a gap of about 2 versions a really better version emerges with noticeable difference.
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
This Guide will explain how to unlock your LG G8X

Unlock Prerequisites:

Make sure you have "Enable OEM Unlock" enabled in developer options, along with USB Debugging. Download everything given in the downloads section. Backup EFS using QPST.

How to backup EFS (xqcn) through QPST?

In phone, dial *#546368#*850#, you’ll be in hidden menu now. G

Go to SVC Menu>Port Check Test> Enable Port Check. Connect Phone to PC, select “File transfer” mode in your phone.

Now, open QPST

Click on “Add Ports”

Uncheck “Show Serial and USB/QC Diagnostics ports only”

Choose COM* - USB/Unknown (LGE Mobile USB Serial Port, LMG850.....)

View attachment 5147061

Now click OK

Click on “Start Clients”

Choose “Software Download”

Choose Backup, and hit start. This will save the config to xqcn file.

Booting into EDL:

Note: Do while phone is booted, in normal mode.

1. Plug in your Phone to your PC

2. Press and hold Power and Volume Down

3. As soon as your screen is blank, rapidly start pressing volume up.

4. If you've successfully booted into EDL, your screen will be completely blank and the device manager will show (Under COM Ports): Qualcomm HS-USB QDLoader 9008

Now Let’s UNLOCK!!!

Downloads:

QPST: https://drive.google.com/file/d/1qoVGeRSNSIpPHZe811mgqoJJe_1veM52/view?usp=drivesdk

ABL: https://drive.google.com/file/d/1WY6aqb6jf658ji1YRZ1iuDzt2GtH5c2e/view?usp=drivesdk

Firehose: https://drive.google.com/file/d/1oO_0_T6PCHl1SQzFHIeip1R8QDszwfLU/view?usp=drivesdk
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
1. Launch QFIL

2. Change it to Flat Build, Choose programmer (Firehose), change emmc to UFS from the drown down pane at botton right corner.

3. Click on Tools> Partition Manager

4. BACKUP THEN FLASH.

How to backup?

Choose a partition, right click on it, select “Manage Partition Data”

Now click on “Read Data”, this will backup the partition to {Your username/App data/Roaming/Qualcomm/COM Port* as .bin file so you can flash it back if any problem arises)

Important partitions to backup: modemst1, modemst2 and abl

How to flash?

Choose

abl_a

, right click on it, select “Manage Partition Data”

Now click on “Load Image”, then browse to abl_a.bin that you have downloaded.

This will flash abl to

abl_a

, it will show that sending image is completed in logs.

Do the same for

abl_b

(use abl_a.bin) too

5. Press and hold Vol- and power till it shows No port available in QFIL, then release power button but keep holding vol-

6. You’ll be in fastboot now. (Check device manager, if it’s showing Android with a yellow triange you don’t have drivers for fastboot installed. Google “15 Seconds ADB Installer” and install it.

7. Run the command “fastboot oem unlock”

8. On phone, select “Unlock the bootloader” then press power.

9. Phone is unlocked now, do whatever you want... (Don’t do anything foolish tho...)

Known Issue: FP is broken...

Thanks to Torres (for the file), @Xsavi

Aditya Y, @JohnyCash2020, @Harry@007 (For testing)

Will Update this guide with images etc...

You can also ask for help here: https://t.me/LG_G8X_India

Thankyou :)
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
How to FIX Network?

1. Boot to edl mode.

2. Open Partition Manager in QFIL, restore backup of abl you created before flashing.

3. Reboot, and network will be back...
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
THIS IS NOT EDL MODE. (This is Download mode for flashing KDZ, many people are confusing this with EDL)

.View attachment 5148097

IN EDL MODE SCREEN WILL BE BLANK AND YOUR PHONE WILL BE DETECTED AS Qualcomm HS-USB QDLoader 9008 not LGE AndroidNet Serial...
[LG G8X ThinQ Guides, News, & Discussion] diejuse:
I am following the unlock tutorial till to "4. If you've successfully booted into EDL, your screen will be completely blank and the device manager will show (Under COM Ports): Qualcomm HS-USB QDLoader 9008" but when I boot into EDL new COM appear (COM11) with state enabled and label "COM11 (auto add)" but I don't see "Qualcomm HS-USB QDLoader 9008"

When after I launch QFIL, I see "No Port Avaiilable"... any help?
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Send a photo of device manager after phone is in edl please...
[LG G8X ThinQ Guides, News, & Discussion] camlin:
Hi, thanks for the guide.

A few questions though:

1) Can we relock the bootloader and return it back to the stock state by the appropriate fastboot commands ?

Since FP is not working right now or incase something else goes wrong ?

2) Does this process wipe any data ?

Thanks for the help !
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Send a photo of device manager after phone is in edl please...

1) Yes.

2)Yes.
[LG G8X ThinQ Guides, News, & Discussion] diejuse:
I solved the problem, thanks. I have just unlocked the bootloader, no network problem. I am going to try to root now...
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Network problem only present in LG G8X released in India ig... Please confirm if fingerprint is working or not plss.
[LG G8X ThinQ Guides, News, & Discussion] diejuse:
Fingerprint is broken, not working. I have two problems:

1º When the phone starts I get this message: " When start it appears "WARNING: Current version is not available for user. Can't finde matched carrier. Check NT-Code: 0"

2º I have flashed Magisk_Patched.img but I don't see Magisk app and Root Checker app says me the device is not rooted.
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
1) Can’t fix it right now. Because we have two different devices, so I don’t know what’s the problem...

2) Install Magisk Manager..
[LG G8X ThinQ Guides, News, & Discussion] SLASH32:
My phone not show QPST, dont show me com ports, the list are empty

im using lg g8x from Brazil
[LG G8X ThinQ Guides, News, & Discussion] diejuse:
I have root now but sound is not working. Please help!
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Are you in edl? Share your Device manager screenshot pls...
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
Where I can get fastboot drivers for g8x

adb is working fine but when I am running fastboot devices command after getting into fastboot on mobile

nothing is happening and I have installed 15 seconds installer as well but still same problem

please help I stuck between process and with no network

edit

I used different pc and it worked

thanks
[LG G8X ThinQ Guides, News, & Discussion] Mr.Conkel:
So bit of a situation here I followed the guide but now the device is unresponsive. I flashed the Firehose and it still shows in QPST but I am stuck there I don't know how to continue. I cannot find the options you are speaking of.

UPDATE: I got the device to boot but I still don't understand your guide. I'm following best I can
[LG G8X ThinQ Guides, News, & Discussion] Mr.Conkel:
After patching both abl I cannot get the device to boot into fastboot mode? I'm using the correct combination in guide but I am only brought too the splash lg g8x thinq screen and no further. The device won't even boot regularly now..
[LG G8X ThinQ Guides, News, & Discussion] cyr4n0:
I've made a backup with QPST. When I boot the phone into EDL mode the driver does not change to the "Qualcomm HS-USB QDLoader 9008" it's still showing as "LGE AndroidNet USB Serial Port (COM4)" and when I try to follow the steps to it fails once I try to open the partition manager.

Here is the log from QFIL
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
you are not getting into edl mode

try again as said to get into edl

it may take 3 to 4 tries
[LG G8X ThinQ Guides, News, & Discussion] Ricky Almonte:
you right, my apologies
[LG G8X ThinQ Guides, News, & Discussion] GnatGoSplat:
Interestingly, if you replace the abl_a and abl_b with the modified abl_a on a Sprint phone and reboot it, it becomes a T-Mobile phone and then getting to HiddenMenu becomes *#546368#*850# and there is a Port Check Test option.
[LG G8X ThinQ Guides, News, & Discussion] Azs5165:
i get bricked too,I tried many method but not working,did u find how to fix it?
[LG G8X ThinQ Guides, News, & Discussion] Spongesparrow:
Will I need to Factory Data Reset when I unlock the bootloader or will everything stay on?
[LG G8X ThinQ Guides, News, & Discussion] shice456:
can we lock the bootlader using the same way??????
[LG G8X ThinQ Guides, News, & Discussion] GTD1113:
This honestly adds so many unnecessary steps... I skipped all the way down to "Now let's get Unlocked" and my bootloader unlocked with zero problems and my network is fine. Fingerprint works.
[LG G8X ThinQ Guides, News, & Discussion] the things I do to save $:
Short-time lurker, first-time poster. I'm trying to root my LG G8x to get rid of all the AT&T junk (I want to freely switch carriers). Naturally, I came to this thread from this thread. I've already spent two hours figuring out I needed to download QDloader9008 to get my phone to show up as a COM port. But, I'm stuck at "How to backup EFS (xqcn) through QPST?" I assume we need to do that just in case all the other steps go to heck that we can bring the phone back to something? Anyways, in QPST my phone shows as being in "download mode" and I've searched but haven't figured out how to get out of this mode. I've seen a couple of replies that suggest "you're not in EDL", but if I wasn't in EDL, my phone wouldn't show as a COM port, correct?

Model number: LM-G850UM

Software version: G850UM40a

Android version: 12

I'm a noob, obviously. Any help is much appreciated. Thank you.
[LG G8X ThinQ Guides, News, & Discussion] Renate:
I've said it before, this nonsense with Com ports is so stupid. It takes a nice accessible bulk interface device and turns it into an opaque virtual Com port where you don't even know what you've got. Sheesh.

You can probably find your (actual) device in Device Manager if you poke around, try "View by connection". Look in Properties > Details >Device instance path for the VID/PID. Is it 9008?

Note also that it's easy to get the Sahara protocol "off the tracks" and you should go to a fresh EDL mode if you are having problems. Unplugging and plugging while in EDL mode will also wedge things.

Had enough of QPST, QFIL?

If you just want to read or write a partition or two and don't need all the silliness, you might try this way.

http://www.temblast.com/edl.htm

TLDR: Replace the Qualcomm driver with Zadig,

check your connection with edl /l,

load the Firehose driver with edl /lfirehosexxx.bin,

read your partition with edl /r /pboot_a boot_a.img.

A /u flag is needed for UFS devices.
[LG G8X ThinQ Guides, News, & Discussion] the things I do to save $:
So, you're saying it's a pain in the butt and there's no getting around it? I may not have done anything wrong, it's just picky? If I try going into EDL a bunch of times maybe one of them will stick?

Here is the value for "Device instance path":

Is there any way around this?
[LG G8X ThinQ Guides, News, & Discussion] Renate:
I dunno. Try it my way. If you don't like it just reload the Qualcomm drivers.
[LG G8X ThinQ Guides, News, & Discussion] the things I do to save $:
Do I need to uninstall the Qualcomm driver before installing the Zadig driver?

...ya know, before I do that, I'm going to try a different computer.
[LG G8X ThinQ Guides, News, & Discussion] Renate:
Zadig can install over anything.

You might need to select "Show all devices" (or something like that).
[LG G8X ThinQ Guides, News, & Discussion] humnar:
I just unlocked my boot loader on a g850um with g850um40a at@t firmware with no problems.
[LG G8X ThinQ Guides, News, & Discussion] GadgetGeekUSA:
This is probably because EDL mode is timing out before you flash. Was happening to me. I made sure to launch QFIL software first and set everything up BEFORE booting into EDL mode. Then RIGHT AFTER booting EDL MODE select port and click flash. This worked. I was booting EDL mode first and then launching QFIL and setting up flash but EDL mode was timing out too quickly. Set up software first and get everything ready and then boot into EDL mode and click "tools- partition manager" IMMEDIATELY and it should work.
[LG G8X ThinQ Guides, News, & Discussion] GadgetGeekUSA:
You're either not in EDL mode or EDL mode is timing out before you try to backup. Launch QFIL software first and get everything ready and then boot into EDL mode and IMMEDIATELY click "Tools -- Partition Manager". EDL mode times out really fast (like maybe 20 seconds?). This worked for me. If EDL doesn't receive a command from QPST pretty fast it times out.
[LG G8X ThinQ Guides, News, & Discussion] robnitro:
It's been a long time but I'm looking to use my g8x as a car media center. It's currently rooted with 20j Android 10 firmware.

Are the Android 11 (30a,30b) or Android 12 (40a,40b) firmwares compatible with the same root method?
[LG G8X ThinQ Guides, News, & Discussion] GadgetGeekUSA:
Yes. It would show up as a DIFFERENT type of com port with a different name.
[LG G8X ThinQ Guides, News, & Discussion] GadgetGeekUSA:
Have you tried installing the TWRP custom recovery? What method did you use to unlock the bootloader?
[LG G8X ThinQ Guides, News, & Discussion] ryshah:
I unlocked the bootloader. It booted the phone fine. No network. So I tried to flash the abl bin files.

It showed Devuice Overflow, Continue? I thought I was doing it right. Did I flash the modem file instead of the abl ? I don't know what happened. Phone is a blank screen now. Won't boot at all.

Indian version.

Edit: Was able to get into EDL mode again. Flashed the backed up abl files. I am back on the stock LG rom. Time to flash Lineage!! 😎
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
try "adb reboot bootloader" command

when you are booted to home screen , it will lead you to bootloader
[LG G8X ThinQ Guides, News, & Discussion] Mr.Conkel:
I couldn't get the phone to boot, I am assuming I bricked it somehow stuck at splash boot screen
[LG G8X ThinQ Guides, News, & Discussion] cyr4n0:
I do get a screen that says Firmware update do not unplug the USB until complete.
[LG G8X ThinQ Guides, News, & Discussion] cyr4n0:
If I boot into the Firmware update mode (which I'm assuming is the EDL mode) I can manually change the driver to the 9008 one mentioned but QFIL still fails when I try to get the partition manager to open. Error log for that below.
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
Bro I think You have not selected ufs in place of emmc

in qfil

check that once
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
Thank you very much

Finally I successfully rooted my g8x
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
You are not in edl mode

try again as said in tutorial

means press and hold power + vol down button untill device restarts

just after screen is off

press volume up button multiple time without leaving Power plus vol down

in this way you will boot in edl mode
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
and in edl mode device screen will remain blank but

in device manager you will get qloader 98xx something like that
[LG G8X ThinQ Guides, News, & Discussion] Sabino94:
Will this work for the g850um model
[LG G8X ThinQ Guides, News, & Discussion] cyr4n0:
Thanks for being patient with me. It finally worked. I must have tried it one hundred times before it worked.
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
I’m pretty sure you’re in download mode. In EDL mode screen will be blank...
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Dunno friend, you can try but have backup in QFIL.
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Device manager screenshot please...
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Reach me through the Telegram Group or DM me. 👌
[LG G8X ThinQ Guides, News, & Discussion] cyr4n0:
When you say restore backup of abl are you referring to both abl_a and abl_b?
[LG G8X ThinQ Guides, News, & Discussion] YASHWANT DHAKAD:
yes
[LG G8X ThinQ Guides, News, & Discussion] Mr.Conkel:
If anyone has stock rom for LM-G850UM please provide, I can boot into download mode and edl mode only. Thank you.
[LG G8X ThinQ Guides, News, & Discussion] Ronith128:
Can you re-download firehose and also check at bottom right corner if ufs is selected/
[LG G8X ThinQ Guides, News, & Discussion] Mr.Conkel:
If anyone has the US AT&T variant of this phone, I need your abl_a backup file to restore my device.

Thank you.
[LG G8X ThinQ Guides, News, & Discussion] cyr4n0:
I've rooted with Magisk and root seems to be working. I then restored the abl_a back to abl_a and abl_b partition. Now I keep getting system UI crashes and the phone app freezes when I try to make a call.

I also can't seem to get ADB to work either. I enable the USB Debugging in developer options and the only thing I see in my device manager is the following under portable devices. I am not able to change the driver to the ADB drivers.

I also get an error message when I boot "Current version is not available for user. Can't find matched carrier. Check NT-Code: 0"

View attachment 5148801
[LG G8X ThinQ Guides, News, & Discussion] cyr4n0:
I was able to get ADB to work by changing the USB connection option to MIDI device. It doesn't work when set to file transfer.

I also just noticed I have no sound as well.
[LG G8X ThinQ Guides, News, & Discussion] rainbowtuba:
Went through all the steps with my US TMo LG, but similarly to others, fingerprint and sound didn't work, the system crashed often, and even after installing Magisk from their website after flashing it with fastboot, I was failing safetynet

Looking forward to getting this ironed out though!