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LG G2 Stock Firmware (Go Back to Stock)

 1 year ago
source link: https://forum.xda-developers.com/t/lg-g2-stock-firmware-go-back-to-stock.2432476/page-637#post-87483869
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LG G2 Stock Firmware (Go Back to Stock)

Seemab Ahmed

New member
Aug 21, 2019
i have upgraded my LG G2 to Lollipop using kdz file but after updating touch screen is not working and is acting funny. only some parts of the screen are responsive. i flashed kitkat kdz file to downgrade to Kitkat but after LG logo start screen my phone is booting lollipop can anybody help me how can i wipe lollipop update and boot my phone into kitkat?
plzzzz help me :'(

hyelton

Recognized Contributor
May 26, 2010 13,895 6,190 Wilmington
i have upgraded my LG G2 to Lollipop using kdz file but after updating touch screen is not working and is acting funny. only some parts of the screen are responsive. i flashed kitkat kdz file to downgrade to Kitkat but after LG logo start screen my phone is booting lollipop can anybody help me how can i wipe lollipop update and boot my phone into kitkat?
plzzzz help me :'(
That means you flashed a wrong model firmware and you need to flash the correct model firmware for your phone


Sent from my iPhone using Tapatalk

stavros kelis

Member
Sep 21, 2015
I have a German G2 16GB but everytime i try to run the flash tool the lg mobile support tool (?) opens up and gives me a message like this "Upgrade stopped due to an error
To try upgrade again follow steps bellow
1. Disconect the phone from PC and remove the battery from the phone.
2. Insert the battery back and reconect the phone to PC.
3. Turn off the phone.
4. Press retry button bellow to start the upgrade."
I'm running a custom rom currently. What is it that i'm doing wrong?

P.S. Never mind, i tried the tot method
Last edited: Sep 26, 2019

bu di

New member
Jul 2, 2019

hyelton

Recognized Contributor
May 26, 2010 13,895 6,190 Wilmington
firmware ples open
Huh?


Sent from my iPhone using Tapatalk

Fipselinho

Member
Apr 16, 2018
hi guys...made a full wipe and then cant get to recovery mode by pressing buttons.
so i tried this 3 methods
- LG flash tool 2014 stopps at 2%
-tot flash tool 1.8.1 is not starting...tried to unplug a lot
- LGUP says in the first poup unknown model (com41 yes)
Install the file with the DLL name in them first and then LGUP_Install_Ver_1_14_3 Then copy the folder "common" to C:\Program Files (x86)\LG Electronics\LGUP\model (this should resolve unknown error)

what means this...where is the common folder?

any tipps how i cant geht my lg g2 back to life? only download mode working
Last edited: Oct 30, 2019

w1ll1m

Senior Member
Jul 15, 2010
Hi,

Currently flashed back to stock but getting no signal with any sim?

Is there a fix?

Cheers

hyelton

Recognized Contributor
May 26, 2010 13,895 6,190 Wilmington
Hi,

Currently flashed back to stock but getting no signal with any sim?

Is there a fix?

Cheers

---------- Post added at 08:51 PM ---------- Previous post was at 08:51 PM ----------

Hi,

Currently flashed back to stock but getting no signal with any sim?

Is there a fix?

Cheers
Depends.

If you flashed wrong model firmware you most likely lost your EFS. and without a backup only fix is motherboard replacement.

If you have a “D802” you might not actually have a D802


Sent from my iPhone using Tapatalk

w1ll1m

Senior Member
Jul 15, 2010
Depends.

If you flashed wrong model firmware you most likely lost your EFS. and without a backup only fix is motherboard replacement.

If you have a “D802” you might not actually have a D802


Sent from my iPhone using Tapatalk
Hmmm, the file i used was 'UK 16GB D80230b_00.kdz' which was for the D802. I couldn't have flashed a wrong model firmware.

hyelton

Recognized Contributor
May 26, 2010 13,895 6,190 Wilmington
Hmmm, the file i used was 'UK 16GB D80230b_00.kdz' which was for the D802. I couldn't have flashed a wrong model firmware.
But do you have an D802 that is the question. Did you buy your phone new direct from LG or used or refurbished? Used G2s are almost always sold as wrong models or tampered with


Sent from my iPhone using Tapatalk

w1ll1m

Senior Member
Jul 15, 2010
But do you have an D802 that is the question. Did you buy your phone new direct from LG or used or refurbished? Used G2s are almost always sold as wrong models or tampered with


Sent from my iPhone using Tapatalk
Ah, that i didnt know.

This was sent as a replacement device from the insurance company. I have run Lineage, specifically the D802 version, for a number of years.

It definitely is a D802
Last edited: Nov 20, 2019

ARDV

Senior Member
Apr 6, 2012
hello
i have an lg g2 802 stuck on lg logo, i cant enter fastboot mode, and there is no recovery (i get exclamation mark), and the phone is not detected by the pc in download mode, i just have adb working with usb debugging enabled before. i hope that you can help.

DarkSyrius

Member
Nov 15, 2010
Hi guys, I know this is not the right spot to ask it...
I already installed a LineageOS ROM and Worked all fine, but when I'm trying to install some Magisk Modules and rebooted my device it get stuck at LG logo... I can access Download mode but not my TWRP (last version) recovery.
Any solution to my problem? Just a little help...

I'm trying all ways to back to Stock but not sucess...

FlashTool from LG give me error at 2% or 4%.
The new FlashTool give error Cross DLL - I can't find the right DLL to LG G2 D805, it gives the error because only DLL avaiable is D802. Any tip to find the correct one?
LGUP only gives me Unknow device...

Pelase, I'm desperate!!!
Thank you so much anyway!

---------- Post added at 03:58 PM ---------- Previous post was at 03:57 PM ----------

Hi guys, I know this is not the right spot to ask it...
I already installed a LineageOS ROM and Worked all fine, but when I'm trying to install some Magisk Modules and rebooted my device it get stuck at LG logo... I can access Download mode but not my TWRP (last version) recovery.
Any solution to my problem? Just a little help...

I'm trying all ways to back to Stock but not sucess...

FlashTool from LG give me error at 2% or 4%.
The new FlashTool give error Cross DLL - I can't find the right DLL to LG G2 D805, it gives the error because only DLL avaiable is D802. Any tip to find the correct one?
LGUP only gives me Unknow device...

Pelase, I'm desperate!!!
Thank you so much anyway!

---------- Post added at 03:59 PM ---------- Previous post was at 03:58 PM ----------
hello
i have an lg g2 802 stuck on lg logo, i cant enter fastboot mode, and there is no recovery (i get exclamation mark), and the phone is not detected by the pc in download mode, i just have adb working with usb debugging enabled before. i hope that you can help.
I'm in the same situation, but I can access only Download Mode, not System, Not Recovery... And I can't make the Stock Roms programs to work!
Any tip?

DarkSyrius

Member
Nov 15, 2010
Hi guys, I know this is not the right spot to ask it...
I already installed a LineageOS ROM and Worked all fine, but when I'm trying to install some Magisk Modules and rebooted my device it get stuck at LG logo... I can access Download mode but not my TWRP (last version) recovery.
Any solution to my problem? Just a little help...

I'm trying all ways to back to Stock but not sucess...

FlashTool from LG give me error at 2% or 4%.
The new FlashTool give error Cross DLL - I can't find the right DLL to LG G2 D805, it gives the error because only DLL avaiable is D802. Any tip to find the correct one?
LGUP only gives me Unknow device...

Pelase, I'm desperate!!!
Thank you so much anyway!

---------- Post added at 03:58 PM ---------- Previous post was at 03:57 PM ----------

Hi guys, I know this is not the right spot to ask it...
I already installed a LineageOS ROM and Worked all fine, but when I'm trying to install some Magisk Modules and rebooted my device it get stuck at LG logo... I can access Download mode but not my TWRP (last version) recovery.
Any solution to my problem? Just a little help...

I'm trying all ways to back to Stock but not sucess...

FlashTool from LG give me error at 2% or 4%.
The new FlashTool give error Cross DLL - I can't find the right DLL to LG G2 D805, it gives the error because only DLL avaiable is D802. Any tip to find the correct one?
LGUP only gives me Unknow device...

Pelase, I'm desperate!!!
Thank you so much anyway!

---------- Post added at 03:59 PM ---------- Previous post was at 03:58 PM ----------

I'm in the same situation, but I can access only Download Mode, not System, Not Recovery... And I can't make the Stock Roms programs to work!
Any tip?
Thanks to all that tried to help me! I appreciate it a lot! Thank you so much!

My only solution was to try short the capacitors following this thread:
https://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404

Thanks God I don't need to mess with the board!

My problem was that I tried this ROM LineageOS 17.1 with latest version of TWRP Blastgator. Everything was running fine until I flashed Magisk and installed some Mods, then the device rebooted and I get stuck at logo!
No System and no Recovery access, only Download mode! :crying:

Then I followed this thread:
https://forum.xda-developers.com/showthread.php?t=2432476

I used to install some custom ROMs like Cloudy G2, LineageOS, Resurretion Remix and AOSPX Pie and tried to this new one. I never had any problems!
This time I realized that my device was forever bricked, my last hope was to short the capacitors but I tried all ways to back to Stock because in Downlaod Mode my device was recognized by Windows.

I tried this in Windows 10 x64 but no success, then I formatted an old HD with Windows 7 x64 to try again!

Old Flash Tool get me stuck at 2% or 4%... no success in both system with all LG drivers available... NO SUCCESS!
https://forum.xda-developers.com/showpost.php?p=53313255&postcount=5400

LGUp only gives Unknow Device and never start but it's seens the device on port 41 - that I changed following the tutorial.

My last hope was New Flash Tool but I needed TOT file for my Device - D805 not D802 and the correct DLL. initially I didn't find anywhere... Like this guy:
https://forum.xda-developers.com/showthread.php?t=2583851

I give a lot of tries... a lot of different files, DLLs, tried .KDZ and .DZ, only errors and errors... a lot of "Failed to Load()"...
I'm getting frustrated until I see this thread:
https://forum.xda-developers.com/showthread.php?t=2582142

And found this mine of gold of Downloads:
http://downloads.codefi.re/autoprime/LG/LG_G2/

And again, thanks to all, there is a hope in the D805 folder!
I get the TOT File: BIN_LGD805AT-00-V10a-724-05-AUG-23-2013-16G.zip and tried the LG Firmware Extractor (https://forum.xda-developers.com/showthread.php?t=2600575) to get a new DLL (LGUP8974.dll).

And voilà, like a charm that WORKED!!!!!!!!! :fingers-crossed::highfive:
It installed Jelly Bean the with the Official LG Updater I installed Kitkat and finally Lollipop.
Later I'll try this LineageOS Rom again!

I hope I can help someone in need like me!!

I thank this forum a lot!!
And please excuse my English!

Thank you so much!

echardcore

Senior Member
Apr 12, 2010 Dirty Jersey
Thank You!

This still works in 2020 for my G2. Using it as a backup after breaking my Pixel XL, waiting on my Pixel 5. I was unable to perform a factory reset on this refurb G2. Got the Demigod error as well as a constant nagging error in the UI related to the Contacts app.

Marlewuk

New member
Aug 15, 2021
Hi, I've recently decided to put my partner's LG G2 to use, which has barely been used since I bought it years ago.

It was working perfectly fine, however the family link wasn't compatible with kit kat, so I decided to update it to lollipop.

That's where the problems started... After flashing the rom, the touch screen isn't working correctly - any touches are way off the mark.

I've spent days on this, flashed various ROMs, used different cables without success.

Can anyone provide any assistance please?

The phone is not rooted, and is an international LG G2 32gb from Hong Kong (purchased via eBay)
Your LG Flash Tool links both direct to OceanHost.eu. Using either Firefox or Edge, I could not DL either file. LG Flash Tool 2014 tool and Flash Tool V1.8 whether found on 'Android File Host' or 'Google Drive' (when searching for alternate links) successfully downloaded each file, but both had a virus. I downloaded a patched LG Flash Tool 2.0.1.6 from here instead.
Last edited: 41 minutes ago

hyelton

Recognized Contributor
May 26, 2010 13,895 6,190 Wilmington
Sorry about that. Ocean Host link is fixed. The security certificate expired and has been fixed.

Can't speak for other sites but some virus alerts for these tools are false positive. Chrome will almost always complain when downloading any.dll file

Top Liked Posts

  • [CENTER]Common Questions and Problems KDZ Method:

    1.Network connection error is NORMAL, move the window over and you'll see its actually most likely flashing

    2.If your getting errors when doing the kdz method and running a custom rom that could be the problem and you'll need to use the TOT method.

    3. Getting connection errors? Check under device manager to make sure you see LG something related under communication ports (Windows 8/10 ports might be hidden)

    Make sure your using a USB 2.0 port!! USB 3.0 will NOT work.

    Common Questions and Problems TOT Method:

    If having an issue try and choose Board_ID on the TOT/DLL selection screen.

    Make sure you've set your COM port to COM41

    If device does not start flashing besure you unplug and replug the device

    Make sure your using a USB 2.0 port!! USB 3.0 will NOT work.[/CENTER]
    Here are all the current KDZ files for flashing Your G2 Back to Stock, I have updated the Link below with the AT&T, T-Mobile, Verizon,Sprint, and Korean, Asia, Pretty much of all them now!. READ!!! The first Guide Below is to Return To STOCK For ALL Varrients!! EXCEPT for the AT&T Please read below for the steps to return to stock on AT&T

    NOTICE! - IF you download fails or does not download all the way USE A DOWNLOAD MANAGER!, Files that are usually over 1GB browsers have issues downloading them espseically if you have a slow connection.

    First Off Not Responsible if you flash the wrong one!!!!
    Please Check to make sure you don`t flash a 16GB firmware on an 32GB device. Please check the file names if they have an "16GB" in the File Name

    THIS Guide Below for All Versions EXCEPT the AT&T Version (For AT&T & Sprint Scroll Down more)

    How to flash ROM KDZ Method
    First off I`d like to THANK @quangnhut123 for making a new way & easy way to flash the KDZ Method!!
    The Files are Hosted on my server for fast speeds! Most if not all NEEDED KDZ files are on my Server
    1). Download all The Files Below!

    1) Firmware Files - HERE!
    Or Here LGKDZ.com for your exact match KDZ for your model
    2) Download LG Drivers - LG Drivers Here - 10.9 Mb
    2.1)Verizon Drivers (Verizon Only)LG_VZW_United_v2.11.1.exe - 7.8 Mb

    3) Download LG Flash Tool 2014 tool and extract - LG_Flash_Tool_2014.zip - 3.1 Mb

    4) Enter to Download Mode and plug USB into your PC

    5) Run LGFlashTool2014.exe and do as following pictures :
    (If you cannot run LGFlashTool2014.exe, please install Visual C++ Runtime Library) - Download HERE
    Normal Flash: Flash ROM without losing any data. Only use this when you need to fix system error. Beware of boot loop when flashing ROM that differ from current ROM on your phone or MOD ROM.
    CSE Flash: Choose this option when you need a fresh format. All data will be gone. It's suitable for upgrading or downgrading ROM or simply use this when you need to back to Stock.

    No need to choose desired language, it automatically change to English as a default setting.


    Wait until 100% to complete !

    REMEMBER if you get Bootlooping after flashing perform a factory hard reset!
    Instructions Here: https://support.t-mobile.com/docs/DOC-7590​
    _______________________________________________________________________________________________________________________________
    2015 (updated with pictures) TOT Method!
    RETURN TO STOCK TOT METHOD!, AT&T, T-Mobile, Sprint, Verizon, & a The few International TOT`s that are available

    How to Flash YouTube Video:

    1.Download Everything!
    1.1)Download Both Stock Image & DLL File – Download Here
    1.2)Download LG FlashTools V1.8 - Setup_LGFlashTool_1.8.1.1023.exe - 9.3 Mb
    1.3)Download Drivers (Any LG Phone) - Here (Verizon Only) – Here
    1.4)Megalock DLL File - Megalock.dll Download

    (Hint) If your getting wrong dll/Wrong model error after having to start to flash and it fails use this DLL file instead of your model DLL file: LGUP_8974.dll - 1.4 Mb
    This error means you where running a rom not meant for or built on a different model#.

    Install:
    2.Install LG Drviers
    3.Install Flashtool (Don’t run it yet)
    4.Extract the TOT file from the Zip
    5.Copy MegaLock.dll file to C:\LG\LGFlashtool (This might be a hidden folder so enable "hidden folders". Replace the old MegaLock.dll file)

    6.Power off your Device & or pull battery (G3),(G Pro),(G Flex)
    7.Press and hold the Vol UP Key and plug in the USB cable to your phone you should now see “Firmware Update/Download Mode” and be in Download mode.

    8.Open up Device Manger on your PC
    8.1)Click on ports and double click LGEModem
    8.2)Go to Port Settings Tab and click Advanced
    8.3)Change COM Port to COM41 and click Okay.
    8.4)After this you may need to rereboot your phone back into download mode.

    9.Run LG Flashtool as Administrator
    10.Select Manual Mode at the top
    11.Click The DLL Box and choose the DLL file from Above meant for your device
    12.Click the S/W box and select the firmware file with the .tot extension, Then Click OK when done.

    13.Now Click the Yellow Arrow Button at the top left, The Firmware install will be triggered

    14.You may need to unplug/replug phone before Firmware install will start (If it does nothing after clicking the yellow button

    15. Should take anywhere between 4-8 Minutes, When its done your phone should reboot

    Do NOT Close the FlashTool Window during firmware update.

    99% of the time FlashTool will FAIL after 85% anything after 85% is just your phone rebooting so your safe

    ​
    _____________________________________________________________________________________________________________________________
    Remember if you have bootloop or stuck on LG Logo after flashing make sure you FACTORY RESET!

    Extra Important Info:
    To Fix ANY Driver issues make sure you reboot your computer after removing and then reinstall again, Also try different USB ports or USB cable or try another PC.
    Also try this for any driver issues: http://forum.xda-developers.com/showpost.php?p=53313255&postcount=5400

    To Fix "Knock On" from not working - Thanks too - @wassk "If ur phone is d802 then open ur dialer type there 3845#*802# when hidden menu opens check for settings....press settings and inside u have Update Touch Firmware...press that and wait for 10-15 seconds....then close this and try again ur screen...maybe will help"

    BEFORE POSTING IN THIS THREAD. DON`T POST ANY LINKS TO the LG-FIRMWARE site as most of there links are not even working, and also make you see an AD for 5 seconds to make money off of you for a dead link they are not even hosting they are just thieving off LG`s Servers and making money on it. Anyone That posts a link to it will be reported to the Mods or asked to remove. Thank You.!
    ____________________________________________________________________________________________________________________________________________________
    My Links are ALWAYS hosted on MY servers for NO Downtime! If My site does NOT have what your looking for PM me or post what you want and I will try and get it for you

    Feel Free to buy me a Beer if you feel I have helped you Thank you!
    Thank you so much!
    Donations: @avinash Rajkumar, @penone1130, @nilesd
    LGUP Method:​
    Flashes both KDZ & TOT files:
    Thanks to @shakeyabooti for LGUP!

    Download LGUP from HERE
    Install the file with the DLL name in them first and then LGUP_Install_Ver_1_14_3 Then copy the folder "common" to C:\Program Files (x86)\LG Electronics\LGUP\model (this should resolve unknown error)
    Make sure you have downloaded the required KDZ file MM or LP
    Open LGUP on your computer "make sure your phone is plugged in"
    ARE YOU HAVING TROUBLE WITH LGUP NOT SEEING YOUR MOBILE?
    Try this....... take the back off your mobile so you can get at the battery. Connect your mobile via USB. Start LGUP, if it does not see your phone DO NOT DISCONNECT, DO NOT RESTART OR TURN OFF LGUP. Take out the battery and then put it back in.......let the phone restart on its own. LGUP should now see it.

    LG Drivers: in First post

    TO DO A FULL WIPE AND INSTALL MM - Open the LGUP on your computer. FILE PATH point it towards the MM KDZ.
    IMPORTANT!!!!!!! shut down LGUP!
    Now open LGUP again - you will notice that the MM KDZ will still be showing in the FILE PATH section. Select REFURBISH and make sure BIN file is ticked. Press Start. Make cup of tea and be patient

    TO GO BACK TO LP FROM MM - Open LGUP on your computer, click on FILE PATH and point it towards your LP KDZ. Close LGUP and re-open LGUP. Make sure you select REFURBISH this will do a FULL wipe, tick BIN file. Press Start. Make cup of tea and be patient


    Video Guide: (Thanks to @KiaTheKing
    https://www.youtube.com/watch?v=iPKcuYwDoxY​
    --------------------------------------------------------------------------------------------------------------------------------------------------
    use the megalock.dll , to enable your lg flash tools

    You can download the megalock.dll and place it to the folder of the lg flash tools

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