Develop Bugs

LG Optimus EX (SU880) [Flash][Root][Bootloader]

:highfive:Hi guys, because of the lack of support for our phone, I wanted to create a unified thread for all Optimus EX SU880.
this thread aims to help all users to flash, upgrade or unbricked their phone.
disclaimer:
I am not a developer but just a mere user of SU880 so i am just collating all information i can gather to help us understand our device more further.
so before doing something posted on this thread, please make sure that you do your own back up because I will not be held responsible if you bricked or damage your phone.
Downloads:
V20c Firmware
V19c Firmware
APX Driver
Bootloader installer for V19c
CWM for V19c
Xrecovery For V19c
Root For V19c
ROOT for V20c
LG USB driver
KDZ_FW_UPD_EN.7z
Smart Flash
Rom Converter
Words you might encounter
1.KDZ = File extension for firmware
2.APX mode aka NVflash = utility where you can flash bios for devices that has nvidia card
3.SOFTWARE UPGRADE mode aka S/W = mode where you can flash a firmware normally
For V19c
Things to do:
1.enable USB debugging
2.back up your files (in case of fire =p )
Upgrading to Stock ROM
Step 1.
>Plug your device via USB cable
>Enable USB debugging and Install the LG united Driver
Step 2.
>Run Rom converter and Extract the Content of your KDZ file
>The tool will asked you about integrated tool ClockworkMod select No and press Enter
>It will extract 3 files but whats important are the SU880_ap.Bin and SU880_cp.fls (take note of the location of the file) then close the RomConverter
>Open SmartFlash and click on the tab ROM copy D/L
>Select the 2 files that you extracted earlier (CP bin for the CP file / AP bin for the AP file)
>tick on normal mode
Step 3.
>Enter S/W mode on your phone
>Power OFF the phone
>Hold the Volume down(-) then Plug the USB cable
>Wait until the SmartFlash Detect the COM port and the Communication driver
>Click the Start button on the SmartFlash tool
>Wait until it says Complete then Reboot your phone by Remove/Insert the battery then press the power button
Rooting V19c stock ROM
>Unplug USB cable
>enable USB debugging mode then Plug back the USB
>Download Root for V19c above
>extract the content to a folder and run ROOT.bat
>press 1 under CMD and select Data Restore on your phone screen
>your Phone will restart
>Turn ON your Phone and you will receive a message from the command prompt that the root is successful
>to verify, you can look for a new ICON (android with a red cape flying)
For V20cc
Things to do:
1.enable USB debugging
2.back up your files (in case of fire =p )
Upgrading to Stock ROM
Step 1.
>Plug your device via USB cable
>Enable USB debugging and Install the LG united Driver
Step 2.
>Enter S/W mode on your phone
>Power OFF the phone
>Hold the Volume down(-) then Plug the USB cable (wait until the computer install the drivers)
>Download the v20c KDZ file
>Run KDZ_FW_UPD and select the V20c KDZ file that you have downloaded
>Select Type: 3GQCT Phonemode: DIAG
>Click Launch Software Update
>Let the application Run until it says finish
>Wait until it says Complete then Reboot your phone by Remove/Insert the battery then press the power button
Note:
**Some user encounter error when using The KDZ Updater (crash / freeze / hang)
**try running the KDZ Updater via Administrator / Go back to Win 7 default theme (not aero) /use Windows XP as an alternative.
Rooting V20c stock ROM
Step 1.
>Unplug USB cable
>enable USB debugging mode then Plug back the USB
>Download Root for V20c above and extract
Step 2.
>Enter APX mode
>Download and install the APX driver above
>remove battery, mmc card and Sim
>phone PIN code
>Hold Both Volume rocker (-) (+) while plugging the USB cable
>Run Start_rooting.bat File and press enter under Command prompt.
>after the CMD finished loading the bootloader
>unplug USB cable and insert the battery back
>Turn on the device normally
>plug the USB cable back
>press enter agan on the command prompt windows t finish the rooting
>wait until it shows root finished
THanks,
That's it for now, but if you have any other question, Just feel free to ask.
and by the way, some of the tools are program using different language so please just bear with them.
One thing that i can promise you is my Phone is unbrickable. =)
Extra:
1.Disable SMS limit
>download Root explorer from the market or you can look for other free app that can enter you root directory
>Download Handcent/ GO sms
>open root explorer then Navigate to >Etc folder>Featuredset.xml>look for Max_user_data, Limit_user_data , Max_user_data and change it your countries preferred value.
Hit "thanks" for the effort =)

Provision Official V4
Jelly bean 4.1.2
Provision Official V4
How to:
1.Install CWM recovery
2.Boot into CWM and perform Factory Reset/Wipe Cache (use volume rocker and power button to navigate)
3.install Provision_official_4SU880.zip
4.reboot device
5.reboot to CWM recovery
6.install gapps for jb (formula 84)
7.reboot normally (you will get Android upgrading message)
8.Enjoy
**fix limited SMS
**Device will be rooted automatically
**device wont reboot changing signal from GSM to WCDMA
**additional settings found
**better battery life
**bloat apps remove
******PLEASE POST YOUR FEEDBACK*******
known issue:
**vibration due to kernel issue
**HDMI connection

LGSU880_4.2.2 version-CM10.1 system - final version
change log here (make sure to use google chrome to translate)
http://bbs.angeeks.com/thread-3009972-1-1.html
Steps:
1.Download CWM recovery
CWM Recovery extract content to desktop
2.Download rom and put it inside your SD card
LZ_LGSU880
Google service pack
3.Remove battery
4.press the volume rocker (-)(+) while plugging the USB
5.if ask for APX driver, manually install it. (APX driver included in the folder)
6.Open the CWM folder and run FLASH.bat
7.boot to CWM and flash the ROM and Update
8.Perform a factory reset.
Enjoy

alamatnitotoy said:
[Reserved]
Custom Rom page
Click to expand...
Click to collapse
Can i use CWM and EXrecovery (v19c) for v20c rom?

Hi @alamatnitotoy !
Me and my friend, who has su880, were testing the v20c kdz.
We flashed v20c kdz using KDZ updater, smartflash and even we tried the offical LG update upgrading from v19c to v20c.
After every way of flasing v20c the phone always stucked at LG boot logo. So We read back every partition from the phone and it turned out that the LNX partition, which contains the kernel, is empty. I mean the kernel was missing after every flash of v20c, but every other partition was okay.
We extracted the the every file from the kdz and the the kernel image was empty in this case as well.
I don't know what is it. Maybe we are doing something wrong or LG simply left out the kernel file from v20c?
Did you flashed v20c?

boy977 said:
Can i use CWM and EXrecovery (v19c) for v20c rom?
Click to expand...
Click to collapse
as far as i know, you should use the one that is design for each version
bitdomo said:
Hi @alamatnitotoy !
Me and my friend, who has su880, were testing the v20c kdz.
We flashed v20c kdz using KDZ updater, smartflash and even we tried the offical LG update upgrading from v19c to v20c.
After every way of flasing v20c the phone always stucked at LG boot logo. So We read back every partition from the phone and it turned out that the LNX partition, which contains the kernel, is empty. I mean the kernel was missing after every flash of v20c, but every other partition was okay.
We extracted the the every file from the kdz and the the kernel image was empty in this case as well.
I don't know what is it. Maybe we are doing something wrong or LG simply left out the kernel file from v20c?
Did you flashed v20c?
Click to expand...
Click to collapse
yes i did flash the v20c. I had that problem before also when using other flasher other than the kdz updater. also sometimes when its failing, what i do is i run the file "Root v20c" thru apx before using the KDZ updater to upload the v20c

alamatnitotoy said:
yes i did flash the v20c. I had that problem before also when using other flasher other than the kdz updater. also sometimes when its failing, what i do is i run the file "Root v20c" thru apx before using the KDZ updater to upload the v20c
Click to expand...
Click to collapse
Thnak you! The rooting-forv20c.rar contains the v20c kernel file.

I need CWM for v20c.Do you have it?

@alamatnitotoy I looked deeply into why flashing v20c brick your phone. My statement that the kernel image is missing from v20c was wrong. The kernel is there but an wrong place. When you use the extractor from P990 AIO toolkit to extract the image files from AP.bin file, the extractor shows you that which image file is at what OFFSET (or address) in the AP.bin file. Here is what am I talking about:
Code:
[01] address=0x00100000 size=0x00400000 // bct file
[02] address=0x00500000 size=0x00200000 // partition layout
[03] address=0x00700000 size=0x00200000 // bootloader
[04] address=0x00900000 size=0x00600000 // recovery
[05] address=0x00f00000 size=0x2bc00000 // system
[06] address=0x2cb00000 size=0x00600000 // kernel
[07] address=0x2d100000 size=0x12c00000 // internal sd content
These adresses also used during smartflashing. These adresses tells the smartflash where is the kernel image and system image and etc in the v20c AP.bin file
If you flash v20c and you read back the 12th partiton with nvflash you can see only zeros.
If you open teh v20c AP.bin file in a hex editor and you go to the 2CB00000 offset you can see there is nothing just bunch of zeros, the kernel is not there. The kernel actually at 2E000000 offset. Not just the kernel is at a wrong offset, also the sd-img is at the wrong offset. sd-img should be at 2D100000 offset, but in the v20c AP.bin it is at 2E600000 offset. So, when you flash v20c the kernel partition will be filled with 00 hex values and the internal sdcard got damaged as well, because the kernel image gets flashed to the internal sdcard. This cause the Stuck at LG boot logo effect, even if you flash v20c kernel to the righ partition with nvflash, because the internal sdcard is damaged.
Fixing v20c AP.bin file:
There are only 00 hex values From 2CB00000 to 2E000000.
Delete those 00 hex values, then the kernel image and the sd-int.img get to the right offset
Insert the same amount of 00 hex values as the amount of deleted 00 hex values to the end of the v20c AP.bin file to keep the size of the sd-int.img, then save the modifications.
I flashed this modified v20c AP.bin to my p990. I read back every necessary partition with nvflash and everything was okay. bootloader, bct, partitions, kernel, recovery, system are aon the right partition so maybe it's fixed, but I am not 100% sure just 98% because I don't have su880
I want to share you and with others the fixed v20c, so you can test. You can download it here
I want to share my google drive folder as well where you can find my works with su880. It has cwm for v19c and v20c. I also write a read me how can you flash it and root your phone with CWM. Well it was not tested as well, I am 98% sure it works, because rooting p990 and su660 stock roms works that way and p990, su660 and su880 almost the same. I use the CWM recovery image from "CWM for v19c".
My folder is here, some files are still uploading. I will notice you in this post when it is finished

There is no bootloader.img in the folder "SU880_V20C_CWM".Have you forgot it?

boy977 said:
There is no bootloader.img in the folder "SU880_V20C_CWM".Have you forgot it?
Click to expand...
Click to collapse
Oh sorry . Bootloader is there just rename it to bootloader.img from bootloader.bin, or download the rar file again from my google drive folder. I fixed it now.

I'm trying to fix "dual clock" at the lockscreen on my v20c rom.Do you know how?

boy977 said:
I'm trying to fix "dual clock" at the lockscreen on my v20c rom.Do you know how?
Click to expand...
Click to collapse
Search for that in the Optimus 2x forums, there should be the solution. I remember that some peopla who are useing su660 solved this dual clock thing.

smartflash
i have flashed my su880 with smartflash as u teach above, now it stuck lg logo? what should i do? please help..

joeclap said:
i have flashed my su880 with smartflash as u teach above, now it stuck lg logo? what should i do? please help..
Click to expand...
Click to collapse
What rom did you flashed? Ippnclude download link for the downloaded rom.
Sent from my LG-P990 using xda app-developers app

Celebrate mempaho
bitdomo said:
What rom did you flashed? Ippnclude download link for the downloaded rom.
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
V20c rom, i've extracted rom files by rom covertor and flashed with smartflash. Thats all. Now stuck lg logo...

joeclap said:
V20c rom, i've extracted rom files by rom covertor and flashed with smartflash. Thats all. Now stuck lg logo...
Click to expand...
Click to collapse
If you can go to S/W download mode then flash this with smartflash. If you can't go to S/W download mode use "Bootloader installer for v19c", and flash that rom I linked

I cant go s/w mode but volume+ power working. What should i do? Can u explain step by step? Where i can find bootloader installer for v19c?

joeclap said:
I cant go s/w mode but volume+ power working. What should i do? Can u explain step by step? Where i can find bootloader installer for v19c?
Click to expand...
Click to collapse
The bootloader installer is at the first post of this thread.
Enter your phone to APX mode:
Remove battery
Press and hold volume_up and voulume_down button while you connect USB cable
Install APX drivers
Run the bootloader installer for v19c.

Hey i need bootloader for v20c.Can you give it to me?

[Q] No dll & tot files for f240x devices??

Hi I'm a noob who just bricked my F240L (korean ver.):crying: I somehow wiped my system partition and the result is disastrous; KDZ flashing is impossible via R&D / support tool and I can't even get into the recovery mode. Only download mode is available.
I heard that it could be fixed by using NPST but I only can find the files for E980 at
http://forum.xda-developers.com/showthread.php?t=2272177, not 240x series. Moreover, KDZ files for OG Pro cannot be extracted by using LGExtractor so there is no way I can get this file by my own.
So is there any possible way for me to get those files??
-------------------------------------------------------------------------------------------------------SOLVED----------------------------------------------------------------------------------------------------------------------

How to solve it ? I'm also having the same problem
I got the same problem also, mine is F240L (Korean version)
The differences is I can manage to enter CWM, but the CWM can't mount external SDcard. As if my MicroSD doesn't exist.
I got no backup file to restore via CWM 6.0.3.3.
Using R&D Tool to flash, after 10s update process. Appear error message "Insufficient Battery Level to Proceed", that's strange because the battery is 100% full.
Using KDZ Updater, the error message appear "File Extracted Error" for 2 KDZ files I got (10T and 10V).
Hard Reset didn't solve the problem.
Now I'm stuck in DOWNLOAD MODE and CWM 6.0.3.3 (can't do anything in CWM).
Before entering CWM, there's an error message "Secure Booting Error ! Cause : Device Unlock, so Boot success !"
Please, anyone would be so kindfull to HELP.

@stupididiotism can you explain how you solve it ?
@chimmot307 have you ever tried this version to flash (translate from chinese)
so my phone was bricked (only download mode available) 1hour ago:
go in download mode->install LG support tool->in menu go to "customer support"->"recovery phone"->(your imei should be here or enter it if not)->click check
and now wait it download the whole img and flash it for you

The firmware 10T in baidu.com is broken, asking for username and password to resume. Little HELP with the username and password, fellas ?

I follow your advice go to "customer support"->"recovery phone"
After 10s update process. Appear error message "Insufficient Battery Level to Proceed", that's strange because the battery is 100% full same with 2nd battery whose 100% full also.
It seems LG Corps. tried to block anyone outside Korean to update their phone (I live in Indonesia, got this phone from real Korean people who sale this phone in Indonesia illegally, because Indonesian market is E988-16GB storage compare to F240L more spacious).

chimmot307 said:
I follow your advice go to "customer support"->"recovery phone"
After 10s update process. Appear error message "Insufficient Battery Level to Proceed", that's strange because the battery is 100% full same with 2nd battery whose 100% full also.
It seems LG Corps. tried to block anyone outside Korean to update their phone (I live in Indonesia, got this phone from real Korean people who sale this phone in Indonesia illegally, because Indonesian market is E988-16GB storage compare to F240L more spacious).
Click to expand...
Click to collapse
ok i'm in France, so try with LG pc suite it have it own version of LG support tool in it
just go in device->firmware recovery
that's the method i used

smaybe said:
ok i'm in France, so try with LG pc suite it have it own version of LG support tool in it
just go in device->firmware recovery
that's the method i used
Click to expand...
Click to collapse
Following your 1st advice, I managed to download the KDZ from baidu.com, and run the tutorial step by step. Everything runs smoothly.
Thanks in advance @smaybe. I owe you BIG one.
:good:
For those who got stuck in DOWNLOAD mode, you can follow these steps (in attachment).

LG PC Suite won't recognise my device (in DOWNLOAD MODE), it only recognise when in LG SOFTWARE MODE (Settings => PC Connection => USB Connection Type => LG Software).
So I can't go to Device => Firmware Recovery.
Why did you delete the 1st advice, @smaybe ? Totally recommended.

hi guys
I was in the worst condition : wiped system partition and moreover, I hard reset my 'rooted' phone.
Recovery mode not supported and kdz flashing also not working.
Then I found this divine tool called 'LG mobile flash tool v1.5' and I could find the tot and dll files for F240 series from some china website (I paid for that tho)
So my point is if anyone holding F240L and having the same problem as me. Then I can send you the files. I feel like posting the file here is a violation of intellectual property of the chinese devleoper(?! what am I saying?)

chimmot307 said:
LG PC Suite won't recognise my device (in DOWNLOAD MODE), it only recognise when in LG SOFTWARE MODE (Settings => PC Connection => USB Connection Type => LG Software).
So I can't go to Device => Firmware Recovery.
Why did you delete the 1st advice, @smaybe ? Totally recommended.
Click to expand...
Click to collapse
It's strange I will look after work but for me it recognise even in download mode
I deleted because I thought the last solution is easier i will take it back

LG PC Suite sucks
I've updated to the latest version, it still doesn't recognise my F240L (in SOFTWARE MODE), it said "Need to change with the right cable" even when I swap with different USB cable.
Or maybe my Windows 7 Ultimate (64bit) having problem in compatibility with PC Suite that won't recognise the USB. Cause, I haven't try with different operating system (Mac, or Windows XP)

Stuck in U+ LTE Logo
Dungeon Hunter 4 messing my Optimus G Pro in this thread http://forum.xda-developers.com/showthread.php?t=2380374
So I decided, to wipe system & data partition.
Hope that KDZ Updater will bring it back normal the way smaybe told me to.
KDZ Updater show 100% Finished, but my F240L still stuck in U+ LTE Logo.
So I try new LG Mobile Support Tool, Upgrade Recovery => IMEI=> OK. Updating to 1.69 GB, 100% finished, still stuck in U+ LTE Logo.
I haven't try LG Mobile Flash Tool 1.5, maybe stupididiotism could tell me step by step ! And not to forget to send the TOT & DLL files.
This is my email : [email protected]
Thanks in advance.

LG Flashtool Error Message
I run LG Flashtool according to website http://forum.gsmhosting.com/vbb/f177/lg-flash-tool-free-no-need-b2b-user-pass-1628819/index2.html
Extract F240L10t_00.kdz from Baidu.com, got 2 file :
- LGUP_GKV.dll
- F240L10t_00.dz
So I used those 2 file in LG Flashtool ( I don't know if those the correct files to use in LG Flashtool, cause I can't seem to find DLL file for F240L, but I think for S/W file is correct ).
Used port COM41 to flash (DOWNLOAD MODE is activated on F240L). Then I unplugged the USB cable for 5s, and replugged it. Error message appears as follow.
Am I using the correct DLL file to flash ? If not, would you be so kind to upload the DLL so I can flash my F240L ?
Thanks.

I need DLL file for LG FlashTool
stupididiotism said:
I was in the worst condition : wiped system partition and moreover, I hard reset my 'rooted' phone.
Recovery mode not supported and kdz flashing also not working.
Then I found this divine tool called 'LG mobile flash tool v1.5' and I could find the tot and dll files for F240 series from some china website (I paid for that tho)
So my point is if anyone holding F240L and having the same problem as me. Then I can send you the files. I feel like posting the file here is a violation of intellectual property of the chinese devleoper(?! what am I saying?)
Click to expand...
Click to collapse
I need it badly, do you mind sending the DLL and TOT files for me, @stupididiotism ?
Here's my email : [email protected]
Thanks in advance.:angel:

LG Flashtool DOES the job
Finally, get my F240L working after stuck in U+ LTE Logo.
Using this method http://forum.gsmhosting.com/vbb/f177/lg-flash-tool-free-no-need-b2b-user-pass-1628819/index2.html
And got LGUP_GKV.DLL from extracting F240L10t_00.kdz from pan.baidu.com (see attachment)
And got TOT file from http://www.gaojituan.com/thread-90-1-1.html or http://www.optimusforums.com/threads/f240-optimus-g-pro-firmware-downloads.7679
I hope this solution might help someone who ever got this problem.
Enjoy this super AWESOME phone.

chimmot307 said:
Finally, get my F240L working after stuck in U+ LTE Logo.
Using this method http://forum.gsmhosting.com/vbb/f177/lg-flash-tool-free-no-need-b2b-user-pass-1628819/index2.html
And got LGUP_GKV.DLL from extracting F240L10t_00.kdz from pan.baidu.com (see attachment)
And got TOT file from http://www.gaojituan.com/thread-90-1-1.html or http://www.optimusforums.com/threads/f240-optimus-g-pro-firmware-downloads.7679
I hope this solution might help someone who ever got this problem.
Enjoy this super AWESOME phone.
Click to expand...
Click to collapse
Could you post TOT file please. I'm stuck in CWM, what do I do?

chimmot307 said:
Following your 1st advice, I managed to download the KDZ from baidu.com, and run the tutorial step by step. Everything runs smoothly.
Thanks in advance @smaybe. I owe you BIG one.
:good:
For those who got stuck in DOWNLOAD mode, you can follow these steps (in attachment).
Click to expand...
Click to collapse
I have the same probleme, low battery...
This quality is to bad can't see the picture. Can you re up please?

stupididiotism said:
I was in the worst condition : wiped system partition and moreover, I hard reset my 'rooted' phone.
Recovery mode not supported and kdz flashing also not working.
Then I found this divine tool called 'LG mobile flash tool v1.5' and I could find the tot and dll files for F240 series from some china website (I paid for that tho)
So my point is if anyone holding F240L and having the same problem as me. Then I can send you the files. I feel like posting the file here is a violation of intellectual property of the chinese devleoper(?! what am I saying?)
Click to expand...
Click to collapse
Hi , pls i really need the f240l files, can u pls send me?
thx in advance

Follow this link
http://forum.xda-developers.com/showthread.php?t=2396048
Sent from my LG-F240L using xda app-developers app

What did you use to extract the DLL? I tried 7zip and it doesn't recognize the format
chimmot307 said:
I run LG Flashtool according to website http://forum.gsmhosting.com/vbb/f177/lg-flash-tool-free-no-need-b2b-user-pass-1628819/index2.html
Extract F240L10t_00.kdz from Baidu.com, got 2 file :
- LGUP_GKV.dll
- F240L10t_00.dz
So I used those 2 file in LG Flashtool ( I don't know if those the correct files to use in LG Flashtool, cause I can't seem to find DLL file for F240L, but I think for S/W file is correct ).
Used port COM41 to flash (DOWNLOAD MODE is activated on F240L). Then I unplugged the USB cable for 5s, and replugged it. Error message appears as follow.
Am I using the correct DLL file to flash ? If not, would you be so kind to upload the DLL so I can flash my F240L ?
Thanks.
Click to expand...
Click to collapse

Model Information Check Fail

Hi...
I have the model Lg G3 855 32gb
at first when trying to flash only came to 6% and flashtool gave me the error message change partition factory .... look and found a generic dll that solved the problem so try again flashing with this new dll and I get to 94 % and the program stopped, after that mo mobile kindled in fastboot mode only started
solve it via cmd installing the download mode and now is this happening
every time I try to flash for tot and correctly using the dll and my model tot
Flash tool always gives me the message of "model information check fail" , always use the COM41 and can not ... please someone who can help me find the solution to this problem because now I have a nice, expensive paperweight .
please help !!!

Can you give a screenshot of flashtool giving the error. Try different usb port and avoid usb 3.0 port.

I'm using 2.0 port and put action option board and upgrade and I always get the same error message
donot like putting a picture, but I get so
SWV:
SWOV:
Model Information Check FAIL!
00000000
Factory Model Check ERROR!

bittersaintkds said:
I'm using 2.0 port and put action option board and upgrade and I always get the same error message
donot like putting a picture, but I get so
SWV:
SWOV:
Model Information Check FAIL!
00000000
Factory Model Check ERROR!
Click to expand...
Click to collapse
I think that I also got that once, since I don't remember how I fixed it I'll give you a instruction how to unbrick your g3.
Step 1: Download all this files
.dll http://lgg3root.com/lg-g3-stock-factory-firmware/ Choose the right files
.tot http://lgg3root.com/lg-g3-stock-factory-firmware/ Choose the right files
drivers http://downloadandroidrom.com/file/...leDriver_S50MAN311AP22_ML_WHQL_Ver_3.11.3.exe
flash tool http://downloadandroidrom.com/file/...leDriver_S50MAN311AP22_ML_WHQL_Ver_3.11.3.exe
Step 2: Install drivers.
Step 3: Install LG Flash tool.
Run the Setup EXE file by double-clicking on it and install LG Flashtool.
Once done installing LG Flashtool program, uncheck “Run LGFlashTool” and click on “Finish”.
Copy and paste MegaLock.dll file to C:\LG\LGFlashTool directory.
Step 4: boot your g3 into download mode.
Step 5: Set your COM to 41.
Go to Control Panel->Hardware and Sound->Device Manager
find Ports (COM & LPT)>LGE Mobile USB Serial Port double click and than go to the Port settings and click on advance
Change port number to 41
Step 6: Open flash tool and Enter the following things.
Select "Manual mode"
Load your .dll file (Click on the "...")
Click on "Add" and select your .tot file
Select "UPGRADE DL"
Connection mode "USB"
Step 7: Click the yellow arrow on the top left.
Step 8: When it says "Ready" unplug the phone and plug it back in.
Step 9: Now Wait and hope it works.
Video: https://www.youtube.com/watch?v=1WgXuxDbmbc

the link of flashtool is the same of the drivers, please!

bittersaintkds said:
the link of flashtool is the same of the drivers, please!
Click to expand...
Click to collapse
oh sorry, here is the correct link for lg flash tool: http://stockroms.net/file/Tools/Flashtool/Setup_LGFlashTool_1.8.1.1023.zip

have u fixed your phone, I got the the notification as well, the flash tool can't read my phone's model and IMEI.

[Unbrick] How to revive H815 - no recovery/fastboot/download mode

Today something went wrong while flashing weekly LOS build and my LG G4 (H815 with v20P firmware) went into very fast bootloop: https://www.youtube.com/watch?v=9gm0dh6bLp4
In this state i wasn't able to enter recovery, nor fastboot, nor download mode. Only IMEI screen (Vol Up + Vol Down I believe) was accessible which was no use.
Here are the steps which got me out of troubles:
A) Verify that you have LGUP installed and have proper 8994.dll version for your device.
Different versions of FW use different libraries which results in errors during flashing.
Steps:
1) Install LGUP with this guide https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
2) Get the right DLL. You can try this one:
Abandoned War Place said:
FIX REFUBRISH/DOWNGRADE ETC STUCK AT 16% DOWNLOAD MODE UNABLE TO GET BACK TO STOCK
error 0x2000 invalid command response Has Been FixeD WITH THE LASTEST DLL FILE
FILE INCLUDE (DLL+PATCH_DLL+SETUP LGUP+DRIVER) package
Please Read The *READ ME FILE FOR THE RIGHT INSTALLATION WITHOUT GETTING ANY PROBLEM :
Link Easy To Download No Ads Bulllsh*t.................. :
https://drive.google.com/file/d/0B_yWw6RLoA-gdTMtZFczMUhQOHM/view?usp=sharing
Click to expand...
Click to collapse
...or extract it directly from KDZ file with extractor https://forum.xda-developers.com/showthread.php?t=2600575.
You need to extract it from FW version that your phone is already running, not from the one you are about to flash! (when flashing from v20d to v20p you need v20d version, but when reflashing v20p FW you need the v20p DLL)
3) Navigate to LGUP install folder (default "C:\Program Files (x86)\LG Electronics\LGUP")
4) Overwrite the old DLL located in "model\8994" folder version with new one in
I don't know the exact compatibility, or how many different DLL versions are out there. Hopefully it doesn't brick the device even more when wrong version is used, it just doesn't work.
B) Write h815 image to sdcard as mentioned here:
leptdre said:
Hi guys,
i came up with a temporary to unbrick LG G4 H815 , you just need a 32 GB SD card ( i used Sandisk 10 class) , the dump that i will link , and Win32 disk Imager, the SD card must low level formatted.
1- download this dump
http://www.4shared.com/rar/NzSqsBzib...230737_00.html
2- put the SD card in the PC and chose the dump file and write ( run as admin ):
Click to expand...
Click to collapse
It worked for me with just 8GB one. Be aware that the image written to SD have like 20 partitions so windows might go crazy.
C) Follow these steps:
jam1445 said:
3. One the Write Completes. Eject Card and insert in your LG G4 H811. Press Volume Up Button while connecting the USB Cable.
4. There you go, it will open the download mode.
Click to expand...
Click to collapse
D) At this moment my G4 finally entered Download mode
I was able to reflash KDZ using the usual procedure (select UPGRADE, find a KDZ file, restart LGUP, select REFURBRISH and START). Initially I got 0x2000 error at approximately 16% (boot displayed as status) that was caused by old version of 8994.dll library.
E) Back to stock
Now you should have stock H815 again so lets flash LOS back as usual
Kudos to OPs: @bullghost , @shakeyabooti , @leptdre , @jam1445 and other posters on G4 section of XDA!
Hope this helps someone!

Good job. If your using this and you're gonna buy a SDCard on purpose, be aware that this fix might not work on your device. Ehehe

@Jirrick im getting the same error on LGUP where do i find a newer version of the dll?

inso420 said:
@Jirrick im getting the same error on LGUP where do i find a newer version of the dll?
Click to expand...
Click to collapse
are these what you looking for.?
https://forum.xda-developers.com/showpost.php?p=73586554&postcount=921

VS986 Stuck on Download Mode
Jirrick said:
Today something went wrong while flashing weekly LOS build and my LG G4 (H815 with v20P firmware) went into very fast bootloop: https://www.youtube.com/watch?v=9gm0dh6bLp4
In this state i wasn't able to enter recovery, nor fastboot, nor download mode. Only IMEI screen (Vol Up + Vol Down I believe) was accessible which was no use.
Here are the steps which got me out of troubles:
A) Verify that you have LGUP installed and have proper 8994.dll version for your device.
Different versions of FW use different libraries which results in errors during flashing.
Steps:
1) Install LGUP with this guide https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
2) Get the right DLL. You can try this one:
...or extract it directly from KDZ file with extractor https://forum.xda-developers.com/showthread.php?t=2600575.
You need to extract it from FW version that your phone is already running, not from the one you are about to flash! (when flashing from v20d to v20p you need v20d version, but when reflashing v20p FW you need the v20p DLL)
3) Navigate to LGUP install folder (default "C:\Program Files (x86)\LG Electronics\LGUP")
4) Overwrite the old DLL located in "model\8994" folder version with new one in
I don't know the exact compatibility, or how many different DLL versions are out there. Hopefully it doesn't brick the device even more when wrong version is used, it just doesn't work.
B) Write h815 image to sdcard as mentioned here:
It worked for me with just 8GB one. Be aware that the image written to SD have like 20 partitions so windows might go crazy.
C) Follow these steps:
D) At this moment my G4 finally entered Download mode
I was able to reflash KDZ using the usual procedure (select UPGRADE, find a KDZ file, restart LGUP, select REFURBRISH and START). Initially I got 0x2000 error at approximately 16% (boot displayed as status) that was caused by old version of 8994.dll library.
E) Back to stock
Now you should have stock H815 again so lets flash LOS back as usual
Kudos to OPs: @bullghost , @shakeyabooti , @leptdre , @jam1445 and other posters on G4 section of XDA!
Hope this helps someone!
Click to expand...
Click to collapse
I just did all your steps for my VS986 , and I got 2 G4 Verizon's back up and working , Thank you so much.
---------- Post added at 10:54 AM ---------- Previous post was at 10:53 AM ----------
I just did all your steps for my VS986 , and I got 2 G4 Verizon's back up and working , Thank you so much.

I'm using a 16gb microsd, but however I try to image it (exfat, fat32 filesystems, different win32imager versions) also have tried different cables, but it still doesn't show any sign of life. I bricked it exactly the same way as OP did. Does anyone have anything else I could try to fix this? Also does the battery charge when its on 9008 mode?

inteLzzz said:
I'm using a 16gb microsd, but however I try to image it (exfat, fat32 filesystems, different win32imager versions) also have tried different cables, but it still doesn't show any sign of life. I bricked it exactly the same way as OP did. Does anyone have anything else I could try to fix this? Also does the battery charge when its on 9008 mode?
Click to expand...
Click to collapse
Can you get at least to the IMEI Display mode (Vol UP and then quickly Vol DOWN, keep both pressed until it shows up)?

Jirrick said:
Can you get at least to the IMEI Display mode (Vol UP and then quickly Vol DOWN, keep both pressed until it shows up)?
Click to expand...
Click to collapse
No could it be caused by low battery? I remember it being like 30% when I bricked it, and does it charge under 9008 mode?

Sorry to hear that. I'm afraid this is beyond my knowledge if it wont even enter the IMEI screen. I suppose you can leave it bootlooping in charger over night and then try in the morning?

Jirrick said:
Sorry to hear that. I'm afraid this is beyond my knowledge if it wont even enter the IMEI screen. I suppose you can leave it bootlooping in charger over night and then try in the morning?
Click to expand...
Click to collapse
It does not bootloop, straight up dead. Just shows 9008 forever on the pc, I left it for like 2 hours like that yesterday. I'll leave it overnight today and if not I'll hack up a direct 5v 1a charger to charge the battery directly. If both don't work i'll probably flash LS991 files in QFIL and use it as a tablet afterwards.. damn i got this phone not even 2 weeks ago perfect condition and all. Will not buy any more damn LG devices.

Oh, I thought your phone was rapidly bootlooping like mine did. Sounds like the person who sold it to you was aware that the phone is on last legs (probably even baked the phone so it runs for few days more) and screwed you over. My next phone wont be LG either.

firmware update do not....lg g4 h815

I will be simple, after installing this room
https://forum.xda-developers.com/g4/development/h815-nougat-stock-t3659860
, I had a problem, ie I had more access to the recovery mode, then I wanted to install marshmallow but the phone remains blocked on
firmware update do not unplug the usb connection until the process is complete...
even when I remove the battery and then I turn on the phone it remains locked
Screen:
http://zupimages.net/viewer.php?id=17/37/z8va.jpg

i think you didn't install any Nougat bootloader and modem before flashing the rom
In TWRP wipe everything, then flash Nougat Bootloader and modem (this file) from TWRP:
https://www.androidfilehost.com/?fid=745425885120759121
and only after install Freedom Rom:
https://www.androidfilehost.com/?fid=745425885120759485
Check if it works

lk

lg g4
thank you for having answered, the problem I have no access to the TWRP, when I want to access the TWRP it makes a return to:
firmware update do not unplug the usb connection until the process is complete
thus impossible to install this link:
H815_29a_Modem_and_Bootloader_no_splash

Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
Plug the USB Cable into the PC(not connected to the LG G4)
Have you PC Powered On and Logged in
Power Down the LG G4
Press and Hold the Volume Up Button on the LG G4
While Holding Volume Up, Plug the USB Cable into the LG G4
Continue Holding the Volume Up Button After You See ‘Download Mode’
Let Go of the Volume Up Button When You See the ‘Firmware Update’ Screen on the G4
Click to expand...
Click to collapse
5) and following the indication you need from this post
TO DO A FULL WIPE AND INSTALL MM
1) Open the LGUP on your computer.
2) FILE PATH point it towards the MM KDZ (LgUP will see only .tot, so when you browse and search your .kdz pay attention to change in the menu .tot to *.* to see everyfile you have)
3) After you load the .kdz now shut down LGUP!
4) Now open LGUP again - you will notice that the MM KDZ will still be showing in the FILE PATH section.
5) Select REFURBISH and make sure BIN file is ticked. Press Start. Make cup of tea and be patient
Click to expand...
Click to collapse
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again

Gigio755 said:
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
5) and following the indication you need from this post
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Click to expand...
Click to collapse
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.

I have not been able to download the file, every time I have this error message that appears:
Download interrupted
Robert_1968_ said:
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
Click to expand...
Click to collapse

I have not been able to download the file (H81520D_00_0115) , every time I have this error message that appears:
Download interrupted
Gigio755 said:
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
5) and following the indication you need from this post
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Click to expand...
Click to collapse

wesqz said:
I have not been able to download the file (H81520D_00_0115) , every time I have this error message that appears:
Download interrupted
Click to expand...
Click to collapse
it works...
try the link for the 20g HERE
Robert_1968_ said:
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
Click to expand...
Click to collapse
good! can you link please the 20p? peraphs the guy above needs it

Gigio755 said:
it works...
try the link for the 20g HERE
good! can you link please the 20p? peraphs the guy above needs it
Click to expand...
Click to collapse
http://lg-kdz.com/?dir=LG G4/H815

thank you my phone is operational

Robert_1968_ said:
http://lg-kdz.com/?dir=LG G4/H815
Click to expand...
Click to collapse
do you still have the KDZ file? i cannot find the H815 20p KDZ file

Rmegaxx said:
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Click to expand...
Click to collapse
Here is:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Click on link: 1) Firmware Files - Click HERE!

Rmegaxx said:
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Click to expand...
Click to collapse
Maybe a bit late, but I haven't been around on xda for a while.
https://lg-firmwares.com/files-update-2017-03-30/
here you fiund the kdz if you still need it.
sorry for the late response