Develop Bugs

LG GM750

hi.
Just bought a LG GM750 , but it contains German Firmware/rom (Windows Mobile).
Does anyone knows how to upgrade to the Dutch firmware? English firmware would be okay too..
I have found a thread in this forum, but I can't find anything about a new rom.
Thnx in advance!

Dutch kdz file for LG GM750 Layla
You can check-out a Dutch kdz file ( firmware needed for flashing) at:
handy-faq.de/forum/lg_gm750_layla_forum/97996-lg_gm750_layla_firmware_download
( add the www-prefix and append ".html" in your adress bar after copying this. I'm not allowed to submit urls here...)
Please keep me posted on your progress!
( I am not a dare-devil, I do hesitate to execute the flashing process until now ...)
Cheers/ Met vriendelijke groet
/R

RonaldH said:
You can check-out a Dutch kdz file ( firmware needed for flashing) at:
handy-faq.de/forum/lg_gm750_layla_forum/97996-lg_gm750_layla_firmware_download
( add the www-prefix and append ".html" in your adress bar after copying this. I'm not allowed to submit urls here...)
Please keep me posted on your progress!
( I am not a dare-devil, I do hesitate to execute the flashing process until now ...)
Cheers/ Met vriendelijke groet
/R
Click to expand...
Click to collapse
Any instructions for the english rom would be appreciated!!!
Thanks!

you have explained here
//forum.gsmhosting.com/vbb/f177/lg-gm750-language-solution-949998/
try to find in google or just edit link with http:

http://forum.xda-developers.com/showthread.php?t=624367

harryal said:
Any instructions for the english rom would be appreciated!!!
Thanks!
Click to expand...
Click to collapse
First you need to have active sync.
Then install lg the usb modem driver here:
***.lg-phones.org/lg-incite-usb-drivers-download.html
Then You need to enter the Emergency download mode by turn off the phone, press and hold Decrease Volume (left side of the phone ) and Multitask key ( Right side of the phone ) at same time and then put USB in your phone.
Then you have to Download the flasher and english rom:
The flasher: h**p://rapidshare.com/files/362390744/KDZ_FW_UPD.zip
And the rom: h**p://rapidshare.com/files/362390741/V10F_00.kdz
When you start KDZ_FW_UPD.exe program is active but not 100% so
you start the Windows Enable.exe and it will show up down in your taskbar where clock is.
Click it and it will show ON so you can use flasher.
In first tab select 3GQCT - SmartPhone(WM) that is for LG GM7500 because it uses 3G network.
In Thirt Tab select WWE ROM from prentix link.
Afther that click on ????????????????????????????????
Wait few minutes and you will have LG GM750 on english.

slaaaave said:
First you need to have active sync.
Then install lg the usb modem driver here:
***.lg-phones.org/lg-incite-usb-drivers-download.html
Then You need to enter the Emergency download mode by turn off the phone, press and hold Decrease Volume (left side of the phone ) and Multitask key ( Right side of the phone ) at same time and then put USB in your phone.
Then you have to Download the flasher and english rom:
The flasher: h**p://rapidshare.com/files/362390744/KDZ_FW_UPD.zip
And the rom: h**p://rapidshare.com/files/362390741/V10F_00.kdz
When you start KDZ_FW_UPD.exe program is active but not 100% so
you start the Windows Enable.exe and it will show up down in your taskbar where clock is.
Click it and it will show ON so you can use flasher.
In first tab select 3GQCT - SmartPhone(WM) that is for LG GM7500 because it uses 3G network.
In Thirt Tab select WWE ROM from prentix link.
Afther that click on ????????????????????????????????
Wait few minutes and you will have LG GM750 on english.
Click to expand...
Click to collapse
Sucessfully flashed ! I was little scared after KDZ Updater finished, ActiveSync showed some weird error (something about problems with connection to phone). But everything is OK.

have firmware in Portuguese Brazil this model is that cell. KDZ?

slaaaave said:
First you need to have active sync.
Then install lg the usb modem driver here:
***.lg-phones.org/lg-incite-usb-drivers-download.html
Then You need to enter the Emergency download mode by turn off the phone, press and hold Decrease Volume (left side of the phone ) and Multitask key ( Right side of the phone ) at same time and then put USB in your phone.
Then you have to Download the flasher and english rom:
The flasher: h**p://rapidshare.com/files/362390744/KDZ_FW_UPD.zip
And the rom: h**p://rapidshare.com/files/362390741/V10F_00.kdz
When you start KDZ_FW_UPD.exe program is active but not 100% so
you start the Windows Enable.exe and it will show up down in your taskbar where clock is.
Click it and it will show ON so you can use flasher.
In first tab select 3GQCT - SmartPhone(WM) that is for LG GM7500 because it uses 3G network.
In Thirt Tab select WWE ROM from prentix link.
Afther that click on ????????????????????????????????
Wait few minutes and you will have LG GM750 on english.
Click to expand...
Click to collapse
I have tried this but nothing happens. i really need a solution for this please help

[guide]new lg flashtool for kdz 1gb or greater!! Fixed kdz extract error!

IM NOT RESPONSIBLE IF U BRICK UR DEVICE. THIS IS A GUIDE. FLASH AT YOUR OWN RISK!
HI WE ALL KNOW WE HAVE KDZ GREATER THAN 1 GB AND GIVES US KDZ ERROR WHEN USED WITH OLD FLASHTOOL.
WE'LL HERE IS THE NEW LG FLASHTOOL USED FOR NEWER PHONE LIKE LG G2 WHICH HAS GREATER THAN 1GB KDZ FILE!
100% WORKS. IUSED IT TO FLASH A 1.2GB KDZ FILE F180K_00N
Credits to @hyelton for the method and filehosting
REQUIREMENTS:
MUST HAVE LG DRIVERS
MSXML
.NET FRAMEWORK INSTALLED
1.DOWNLOAD THE ROM/KDZ
2.DOWNLOAD LATEST LG MOBILE SUPPORT TOOL
http://csmg.lgmobile.com:9002/client/app/B2CAppSetup.exe
INSTALL IT WHEN DONE. CLOSE AND END PROCESS ON TASKMANGER.
3.DOWNLOAD LG R&D TOOL
http://storagecow.eu/index.php?dir=Xda/LG+Optimus+G+Pro/Programs/
4.GO TO DOWNLOAD MODE POW+BOTH VOL BUTTON PRESSED+CONNECT USB
6) Extract FlashTool and run UpTestEX.exe
7) In R&D Test Tool window,
Select Type = 3GQCT (top left hand side)
PhoneMode = DIAG (top right hand side)
Select kdz file = click to select your LG stock rom *.kdz
Click "Normal web upgrade test" (bottom right hand side)
Then another window will pop up, click "Upgrade Start" button
wait a few seconds, another window "Select Country & Language" pop up,
=> Country=Republic of Korea
=> Language=English
you can click ok to proceed
8) All Done and wait for finish!

davevinci said:
IM NOT RESPONSIBLE IF U BRICK UR DEVICE. THIS IS A GUIDE. FLASH AT YOUR OWN RISK!
HI WE ALL KNOW WE HAVE KDZ GREATER THAN 1 GB AND GIVES US KDZ ERROR WHEN USED WITH OLD FLASHTOOL.
WE'LL HERE IS THE NEW LG FLASHTOOL USED FOR NEWER PHONE LIKE LG G2 WHICH HAS GREATER THAN 1GB KDZ FILE!
100% WORKS. IUSED IT TO FLASH A 1.2GB KDZ FILE F180K_00N
Credits to @hyelton for the method and filehosting
REQUIREMENTS:
MUST HAVE LG DRIVERS
MSXML
.NET FRAMEWORK INSTALLED
1.DOWNLOAD THE ROM/KDZ
2.DOWNLOAD LATEST LG MOBILE SUPPORT TOOL
http://csmg.lgmobile.com:9002/client/app/B2CAppSetup.exe
INSTALL IT WHEN DONE. CLOSE AND END PROCESS ON TASKMANGER.
3.DOWNLOAD LG R&D TOOL
http://storagecow.eu/index.php?dir=Xda/LG+Optimus+G+Pro/Programs/
4.GO TO DOWNLOAD MODE POW+BOTH VOL BUTTON PRESSED+CONNECT USB
6) Extract FlashTool and run UpTestEX.exe
7) In R&D Test Tool window,
Select Type = 3GQCT (top left hand side)
PhoneMode = DIAG (top right hand side)
Select kdz file = click to select your LG stock rom *.kdz
Click "Normal web upgrade test" (bottom right hand side)
Then another window will pop up, click "Upgrade Start" button
wait a few seconds, another window "Select Country & Language" pop up,
=> Country=Republic of Korea
=> Language=English
you can click ok to proceed
8) All Done and wait for finish!
Click to expand...
Click to collapse
this works on any lg optimus model?

ShadowsDie said:
this works on any lg optimus model?
Click to expand...
Click to collapse
Should work as long as right kdz is used
Sent from my LG-F180K using Tapatalk

Many thanks to davevinci.
I've mistaken using USB 3.0 port on my notebook to flash, switch to USB 2.0 and everything goes fine.

mewtwo68d said:
Please help!
I've tried this Flashtool a couple of times, always get stuck when progressing 4% on S/W Upgrade is in progress.
Anything wrong?
Click to expand...
Click to collapse
Hello, what error do u have in logs?
Make sure u have
Latest lg drivers
Msxml installed
.net framework installed
Usb 2.0 port
And kdz is not corrupted
Sent from my LG-F180K using Tapatalk

also it's important to use rear usb ports if you are on a desktop pc.no usb hubs or usb extension cables. low quality cables can give you errors.

E977 Compatible
Thank you very much!!!!!!
Works on Optimus G E977 with ROM E97710C_00.kdz (1.10GB)

Confirm E987 compatible
Works perfect in E987 model in Argentina
Retail Argentina 10A more 1GB ! Thanks bro

Yest I reflashed my whole mobile with old flash tool with this setting
Type:3GQCT
Phone mode:Emergency (not CS_Emergency)
i flashed v10D kdz of India.
It showed me file extract error and it continued after that.
first time but very strange as it successfully flashed the complete file.

Hi guys,
I'm getting an error message (please find image attached).
I've followed the procedure step by step on one desktop PC and on a notebook, both running windows 7. My OG it's an E987.
Any ideas? thanks!

ramicba said:
Hi guys,
I'm getting an error message (please find image attached).
I've followed the procedure step by step on one desktop PC and on a notebook, both running windows 7. My OG it's an E987.
Any ideas? thanks!
Click to expand...
Click to collapse
You are running the lg flashtool, u must run first R&D, flashtool will open from there
Sent from my LG-E975 using Tapatalk

davevinci said:
You are running the lg flashtool, u must run first R&D, flashtool will open from there
Sent from my LG-E975 using Tapatalk
Click to expand...
Click to collapse
Also make sure you run as admin
Sent from my LG-E975 using Tapatalk

Thank you
Sent from my LG-E975 using Tapatalk

I'm having the same error. Cannot connect between pc and celphone...it gets stucked at 15%..
Im running as admin, haave the latest lg drivers...don't know what to do

davevinci said:
You are running the lg flashtool, u must run first R&D, flashtool will open from there
Sent from my LG-E975 using Tapatalk
Click to expand...
Click to collapse
I ran it first from the R&D tool, and as you said, the flashtool opened from there.
davevinci said:
Also make sure you run as admin
Sent from my LG-E975 using Tapatalk
Click to expand...
Click to collapse
I was running the application as admin as well...I'm not sure what else could I do..
I guess I'll keep trying, thanks!!

ramicba said:
I ran it first from the R&D tool, and as you said, the flashtool opened from there.
I was running the application as admin as well...I'm not sure what else could I do..
I guess I'll keep trying, thanks!!
Click to expand...
Click to collapse
Hi! U could provide us a screen by screen capture of what u are doing? Also if u are in windows 7/8 or vista
Windows Vista, 7, 8 are using the KDZ flashing before you run the utility if you have to eliminate the possibility of error, open Explorer, in the Address bar, enter% programdata%, and then the move, LGMOBILEAX folder is found First, delete it.
Sent from my LG-E975 using Tapatalk

Martin-Casla said:
I'm having the same error. Cannot connect between pc and celphone...it gets stucked at 15%..
Im running as admin, haave the latest lg drivers...don't know what to do
Click to expand...
Click to collapse
Hi have u installed MSxml 4.0 and .net framework?
Also in vista/7/8
Windows Vista, 7, 8 are using the KDZ flashing before you run the utility if you have to eliminate the possibility of error, open Explorer, in the Address bar, enter% programdata%, and then the move, LGMOBILEAX folder is found First, delete it.
Sent from my LG-E975 using Tapatalk

ALSO BE SURE U HAVE ENABLED WINDOWS ENABLER
Sent from my LG-E975 using Tapatalk

davevinci said:
Hi have u installed MSxml 4.0 and .net framework?
Also in vista/7/8
Windows Vista, 7, 8 are using the KDZ flashing before you run the utility if you have to eliminate the possibility of error, open Explorer, in the Address bar, enter% programdata%, and then the move, LGMOBILEAX folder is found First, delete it.
Sent from my LG-E975 using Tapatalk
Click to expand...
Click to collapse
have both installed on my pc...but problem still persists...i've tried in 2 different compúters without succes..so..dont know what else to do :S

Martin-Casla said:
have both installed on my pc...but problem still persists...i've tried in 2 different compúters without succes..so..dont know what else to do :S
Click to expand...
Click to collapse
Can you post a screenshot of what u are doing? So we can troubleshoot...
Also all ur drivers for LG is updated?
Sent from my LG-E975 using Tapatalk

Where can I get Stock ROM (Gingerbread or ICS)?

Hi,
just bought the LG Optimus True HD LTE (this is the model name for this phone here in germany) and flashed it with CM10.1.3.
I'm thinking about to sell it again (accu drain, big display) but therefore I want to flash it back to Stock ROM (2.3.6 or 4.0.4). But I don't know where I can get 2.3.6 or 4.0.4 Stock ROM. I already wrote to LG support but no answer so far. Does someon has a download link?
olli14

olli14 said:
Hi,
just bought the LG Optimus True HD LTE (this is the model name for this phone here in germany) and flashed it with CM10.1.3.
I'm thinking about to sell it again (accu drain, big display) but therefore I want to flash it back to Stock ROM (2.3.6 or 4.0.4). But I don't know where I can get 2.3.6 or 4.0.4 Stock ROM. I already wrote to LG support but no answer so far. Does someon has a download link?
olli14
Click to expand...
Click to collapse
Download the image you want from here
Download this
After that:
1- Place the phone in Download Mode (Turn off phone, then hold volume up while plugging in USB cable)
2-In the KDZ tools folder, install msxml and run B2CAppSetup (Close the application after it has installed)
3-Run Windows Enabler as Administrator, and press the icon in the system tray to activate it. (Windows enabler allows you to click on grayed out options to unlock them in programs. You can then set the option as you normally would.)
4-Run KDZ_FW_UPD.exe. You need to set Type to 3GQCT, PhoneMode to CS_EMERGENCY, and point the KDZ file field to V10F_00.kdz or the one you downloaded.
Once these settings are enabled, hit the "Launch Software Update" button.
And there you go, back to stock !!
BTW, v10x are GB and v20x are ICS
Good Luck

Hi danilo96
On my side both links doesn't work. I'm on Google Chrom but even when I use MS Internet Explorer the links doesn't work. Do they work on your side danilo96?
olli14

olli14 said:
Hi danilo96
On my side both links doesn't work. I'm on Google Chrom but even when I use MS Internet Explorer the links doesn't work. Do they work on your side danilo96?
olli14
Click to expand...
Click to collapse
My bad, it's fixed now.

Ok
I have followed these steps
1- Place the phone in Download Mode (Turn off phone, then hold volume up while plugging in USB cable)
2-In the KDZ tools folder, install msxml and run B2CAppSetup (Close the application after it has installed)
3-Run Windows Enabler as Administrator, and press the icon in the system tray to activate it. (Windows enabler allows you to click on grayed out options to unlock them in programs. You can then set the option as you normally would.)
4-Run KDZ_FW_UPD.exe. You need to set Type to 3GQCT, PhoneMode to CS_EMERGENCY, and point the KDZ file field to V10F_00.kdz or the one you downloaded.
Once these settings are enabled, hit the "Launch Software Update" button.
Step 1 OK
Step 2 OK
Step 3 OK
Step 4 KDZ FW_UPD.exe version 1.0.4.4 is not working on my side. But KDZ_FW_UPD.exe version 1.0.54 is working. But the user windows of version 1.0.4.4 doesn't look like the user windows of version 1.0.54. So I don't know how to configure this user window 1.0.54. Can anybody help me?
olli14

[Q] LG H815 G4 Flash kdz

Hello, my lg is found on the block lg logo because of the deletion of the system partition.
I wonder if a KDZ file was available for lg g4 ( H815 )
the TWRP and unavailable , fastboot mode also but I can just put in download mode.
Lg software update tools do not work.
Do you want my IMEI ?
Help me please

dydyfr said:
I wonder if a KDZ file was available for lg g4 ( H815 )
Click to expand...
Click to collapse
http://downloads.codefi.re/autoprime/LG/LG_G4/H815/H81510B

Thank you a lot! It is restarted , I'm too happy
Thank you the XDA team!
very strong

the link no function. please link one firmware kdz.

how do u get into download mode?
i keep trying different ways but when i hold the volume up button and plug it to the computer it only shows me the IMEI number..
anyone?

transfer8 said:
how do u get into download mode?
i keep trying different ways but when i hold the volume up button and plug it to the computer it only shows me the IMEI number..
anyone?
Click to expand...
Click to collapse
1. Delete any software owned by LG . and removing drivers
2. Install only LG drivers.
3. Switch off the phone completely .
4. Press the top volume , while plugging in USB . You will be in download mode
5. Wait for the driver installation .
6. Open Lg flash tool
7. Select Kdz file.
8. Select 'normal' and start
9. select country & language = Do not touch, do ok
10. LG Mobile Support tool opens, the flash begins.
Warning = an error message may appear , do not close this message , you have to set it aside
Sorry for my bad English

gab2390 said:
the link no function. please link one firmware kdz.
Click to expand...
Click to collapse
Yes indeed the link is not working at the moment .
I'll post it on mega tonight ... :good:

dydyfr said:
1. Delete any software owned by LG . and removing drivers
2. Install only LG drivers.
3. Switch off the phone completely .
4. Press the top volume , while plugging in USB . You will be in download mode
5. Wait for the driver installation .
6. Open Lg flash tool
7. Select Kdz file.
8. Select 'normal' and start
9. select country & language = Do not touch, do ok
10. LG Mobile Support tool opens, the flash begins.
Warning = an error message may appear , do not close this message , you have to set it aside
Sorry for my bad English
Click to expand...
Click to collapse
wohoo thanks man! worked perfectly

Hello,
Here is the link to KDZ file can flash with flash tool lg 2014
V10B LGH815 :good:
http://lg-phone-firmware.com/index.php?id_mod=195

my phone hangs on lg logo. trying to reinstall kdz. but it keeps giving me error after 10% with s/w upgrade. please help (lg g4 h815)

plz bro hlep me flash setup compalet but sill to restart on logo
dydyfr said:
1. Delete any software owned by LG . and removing drivers
2. Install only LG drivers.
3. Switch off the phone completely .
4. Press the top volume , while plugging in USB . You will be in download mode
5. Wait for the driver installation .
6. Open Lg flash tool
7. Select Kdz file.
8. Select 'normal' and start
9. select country & language = Do not touch, do ok
10. LG Mobile Support tool opens, the flash begins.
Warning = an error message may appear , do not close this message , you have to set it aside
Sorry for my bad English
Click to expand...
Click to collapse
plz bro hlep me flash setup compalet but sill to restart on logo

Thank you , it works perfectly

LGUP New Tool For Flash (Kdz and TOT)

It has taken me many days to find a tool to flash KDZ AND TOT since many people show an error at 4% of FlashTool and there is no solution so this is your Post.
LGUP is a tool used by Lg for phones that still have a guarantee such as a system error or a software error.
Compatible with Windows vista/7/8/10 No macOS No Linux
Thanks to DroidTH for giving me a link
ok let's start
Renember: All will be erased in the internal memory.
Your warrantly is now avoid
Visit [How-to] Flash firmware KDZ G2 G3 G4 by LGUP On Youtube to the link
Remember that it is not channel advertising, it's just that I can not add external links
Steps to follow
Make sure you have the drivers installed correctly
Download The KDZ / TOT
Connect Lg g3 to pc (No need to enter download mode manually)
Unzip (LGUP-G2-G3.ZIP)
First install (LGUP_8974_DLL_Ver_0_5_CODEFIRE)
Second Install (LGUP_Install_Ver_1_14_3)
Enter the LGUP program that is probably hosted on your desktop
Select the Upgrade box and select the KDZ / TOT file
Wait for the process to finish (Do not disconnect the phone)
At 80% the phone will restart (not yet to be disconnected)
When you reach 100% the phone must have turned on or starting on the TMO logo
If it does not start
-------------------------------------------------- -------------------------------------------------- ----
If it does not start
---------------------------------------------- -------------------------------------------------- -----
If it restarts constantly and does not enter the system (It restarts before reaching the optimizing application)
Turn off the phone completely and remove the battery
Wait 10 seconds. And put it back
Press Vol- and on when logo is released and press them again.
Give you everything
EYE: all files on the internal SD card will be erased
A factory reset will be made and then it must be turned on normally.
If it still does not start, remove the chip (SIMCARD)
Well that's all if you have any questions please write
Sorry if I needed something, it's just that I'm new and I do not know anything about xda
I hope you understand.

When I run LGUP it says Model is Unknown, then gives an error telling me I have to choose a known Model. Drivers are installed, USB debugging is enabled, not sure what else there is missing. Please help.
my phone: (T-Mobile lg g3 d851 30e)

dricialg said:
error Unknown model.!!
my phone: (g3 d851 30e)
Click to expand...
Click to collapse
sorry you had problems
the error is one of the drivers lg
you should plug it into one of the main USB ports on your PC.
or rather entering device manager and re-assign drivers to ports.
Have you downloaded the lgup for lg g3 and g2?

Drivers are installed, USB debugging is enabled, LG PC Suite OK.not sure what else there is missing.
Download : lgup-g2-g3.zip

Solve it FIX
good after I found the problem LGUP
roms apparently change the model of the device as it changes cm11 to build Cyanogenmod 11 xx
AOSP - to AOSP rom 2 etc.
the solution would be to install a stock rom clean no matter if v10 v30 etc. The important thing is not having changed the model number and manufacturer.
I hope I have helped and sorry

that includes cloudy fa's roms

minicm94123 said:
It has taken me many days to find a tool to flash KDZ AND TOT since many people show an error at 4% of FlashTool and there is no solution so this is your Post.
LGUP is a tool used by Lg for phones that still have a guarantee such as a system error or a software error.
Compatible with Windows vista/7/8/10 No macOS No Linux
Thanks to DroidTH for giving me a link
ok let's start
Renember: All will be erased in the internal memory.
Your warrantly is now avoid
Visit [How-to] Flash firmware KDZ G2 G3 G4 by LGUP On Youtube to the link
Remember that it is not channel advertising, it's just that I can not add external links
Steps to follow
Make sure you have the drivers installed correctly
Download The KDZ / TOT
Connect Lg g3 to pc (No need to enter download mode manually)
Unzip (LGUP-G2-G3.ZIP)
First install (LGUP_8974_DLL_Ver_0_5_CODEFIRE)
Second Install (LGUP_Install_Ver_1_14_3)
Enter the LGUP program that is probably hosted on your desktop
Select the Upgrade box and select the KDZ / TOT file
Wait for the process to finish (Do not disconnect the phone)
At 80% the phone will restart (not yet to be disconnected)
When you reach 100% the phone must have turned on or starting on the TMO logo
If it does not start
-------------------------------------------------- -------------------------------------------------- ----
If it does not start
---------------------------------------------- -------------------------------------------------- -----
If it restarts constantly and does not enter the system (It restarts before reaching the optimizing application)
Turn off the phone completely and remove the battery
Wait 10 seconds. And put it back
Press Vol- and on when logo is released and press them again.
Give you everything
EYE: all files on the internal SD card will be erased
A factory reset will be made and then it must be turned on normally.
If it still does not start, remove the chip (SIMCARD)
Well that's all if you have any questions please write
Sorry if I needed something, it's just that I'm new and I do not know anything about xda
I hope you understand.
Click to expand...
Click to collapse
Where are downloads

minicm94123 said:
good after I found the problem LGUP
roms apparently change the model of the device as it changes cm11 to build Cyanogenmod 11 xx
AOSP - to AOSP rom 2 etc.
the solution would be to install a stock rom clean no matter if v10 v30 etc. The important thing is not having changed the model number and manufacturer.
I hope I have helped and sorry
Click to expand...
Click to collapse
Hi !
How do I do all the above ?
My PC recognize the phone without problem, but LGUp won't start unless I "select a known model"... (LGUp window shows : Model = Unknown ; COM Ports = [COM5, CloudyG3] )
Problem is that my phone is softbricked after installing a new ROM, and I can only enter download mode (not even recovery). I just want to downgrade it and reflash a LG's stock ROM (or whatever ROM that would make my phone actually work !!! )
Can you help me do that ?

raf1978 said:
Hi !
How do I do all the above ?
My PC recognize the phone without problem, but LGUp won't start unless I "select a known model"... (LGUp window shows : Model = Unknown ; COM Ports = [COM5, CloudyG3] )
Problem is that my phone is softbricked after installing a new ROM, and I can only enter download mode (not even recovery). I just want to downgrade it and reflash a LG's stock ROM (or whatever ROM that would make my phone actually work !!! )
Can you help me do that ?
Click to expand...
Click to collapse
Do you still wanting help?

minicm94123 said:
Do you still wanting help?
Click to expand...
Click to collapse
YEEEESSSSSS !!!!
Please.... ?
(My phone is currently used as a toy by my 6 yo daughter ? )

LGUP "UNKNOWN" and FlashTool failure with LG G3 (and possibly others)
When I downloaded and installed LGUP with the DLL installer stated to be for the LG G3, the program did not recognise the phone, reporting it as "UNKNOWN". The LG FlashTool also failed, reporting the IMEI and PID as NULL. After spending a lot of time on this, I twigged that the DLL file in the LGUP model directory was for the 8994 processor; but the G3 has an 8974, quite different and incompatible. I located the DLL installer MSI file for 9874 devices, uninstalled LGUP and the DLLs from Windows add/remove programs, ran the 9874 DLL installer and reinstalled the LGUP program, and everything worked.
The file is, amongst other places, on https://uptoandroid.com/download-lg-up-tool-for-lg-smartphone-latest/. Do not download DLL files for LG G4, LG V10, LG G3, LG Stylo, filename LGUP_Common_DLL_Ver_1_0_28_5 .msi, but instead For LG phones based on Qualcomm Snapdragon 800 MSM8974 SoC, filename LGUP_8974_DLL_Ver_0_5.msi:.
HTH
23 Aug 19: I find that I've rediscovered the wheel. Exactly what I said was posted in 2016 - if I'd found it, it would have saved me a lot of time!