[LG Optimus G (International)] MasterFURQAN:
I already elaborated. . jjust. follow the steps.. i also have the e975 indian..

just reply if you have problems with any steps

---------- Post added at 08:14 AM ---------- Previous post was at 08:10 AM ----------

i have flashed it on Win 7 x86 and win 8.1 pro x64

---------- Post added at 08:19 AM ---------- Previous post was at 08:14 AM ----------

follow these steps.. :if you have less than 1 gb kdz file

1) Download the latest KDZ from LG's server for your phone via

the app below (kudos to the creator)

http://www.mediafire.com/?cgeb6o5osy2yl9c

2) Make sure you have LG United Drivers already installed,

otherwise download from below

http://www.mediafire.com/?82nt1aeh04aqa3m

3) Download LG KDZ Updater

http://www.mediafire.com/?sj5y073xal03ntw

4) Download the manual adb wipe batch file

http://www.mediafire.com/?ru7erfxsz7p7s3p

5) Put your Optimus G into Download Mode by switching it off,

attaching the usb cable to the phone, holding both the up and

down volume buttons at the same time and lastly inserting the

usb cable into the computer; wait for the drivers to finish

loading if doing it for the first time.

6) Unzip the downloaded updater zip file and run KDZ_FW_

UPD.exe. Use the settings below

Type: 3GQCT

Phone Mode: CS_Emergency

KDZ file: navigate to the folder which you have saved the

downloaded KDZ from the step (1)

Click Launch Software Update and wait for the flash process to

finish

7) Your phone will restart itself when IParam = 90 is displayed

and proceed slower until you see IParam=1 again (which

signals the end of flash, you can safely exit the program then

and remove the cable from the phone). If phone boots up

normally, congrats, skip the steps below and proceed to use the

phone as per normal.

However, this most probably will not be the case for newer

Optimus-es, as the data partition somehow wasn't wiped even

when KDZ-ed, remaining 'dirty', thus causing bootloop or

security infringement.

8) If the phone is stuck at the booting up LG/Telco logo, you

will need to manually wipe the data partition.

9) Force the phone off by holding the power button for appx

15secs.

10) Put the phone into recovery mode by holding the volume up

and home button concurrently, then press the power button. Let

go of all the buttons after you see the LG logo on screen for the

2nd time and the screen goes blank thereafter (backlight may

still be on). The phone will kind of reboot and then enters

recovery mode. Repeat the process if you did not get it the first

time.

11) With the phone in Recovery Mode, connect it to the

computer, wait for the drivers to load (if doing it for the first

time), unzip the wipe batch file downloaded earlier from step (4)

, double click on wipe.bat to execute the wipe command.

12) Your phone will auto reboot when wiped and (hopefully)

boot as per normal.

Hope with this simple guide fellow members will feel safer when

rooting or removing non essential LG wares from their Optimus

---------- Post added at 08:24 AM ---------- Previous post was at 08:19 AM ----------

if you have greater thsn 1 gb kdz file

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...2CAppSetup.exe

INSTALL IT WHEN DONE. CLOSE AND END PROCESS ON

TASKMANGER.

3.DOWNLOAD LG R&D TOOL

http://storagecow.eu/index.php?dir=X.../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!

---------- Post added at 08:34 AM ---------- Previous post was at 08:24 AM ----------

IMPIRTANT NOTE: DO NOT USE USB 3.0 PORT FOR THIS.. use only usb 2.0 port with a good usb cable as provided with the phone