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[Easy][GUIDE][UNROOT][RELOCK BOOTLOADER]Flash Stock KDZ Offline LG L90 [All Variants]

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gdjindal

Senior Member
First of all, This is not my original work. All credits goes to :cowboy:quangnhut123:cowboy:, who modified this tool for us. I am just sharing this GUIDE for easy flashing KZD to L90

I have tested this method myself and it is working perfectly for me, but it is also possible that it might not work for you for some reasons, so don't panic, just post your problem or whatever error you are facing (please attach screenshot if possible). I or other thread members will try to troubleshoot it. After resolving the problem I'll update this post, so that other members do not face such problem again.
  • PLEASE, USE THIS TUTORIAL AT YOUR OWN RISK, IF SOMETHING WENT WRONG (because of your stupidity) ME OR XDA WILL NOT RESPONSIBLE FOR YOUR LOSS.
  • Flashing KDZ removes Root and CWM, so you will need to root again.
  • Flashing KDZ does not wipe your data, but if you get bootloops you need to hard-reset it, so please backup data first.
DEVICES FLASHED WITH THIS GUIDE AND TESTED OK: LG L90 (D410)

1. Download KDZ file

To download KZD for you Device GOTO http://lg-phone-firmware.com/index.php?firmware=1
Enter IMEI no of your device.

attachment.php


Enter IMEI Number of your LG Device and press Download Button. It will generate a download link for kdz file.
Be warned the KDZ that your going to use will be auto deleted (may be not) so make another copy

2. Precautions:-

  • Please temporarily disable any Adblock add-on in your browser and I recommend to check your host file
    C:Windows\system32\drivers\etc\host
    Enable Show Hidden Files in Folder Option (Don't disable this option until kdz flashing process completes) and Delete the LG Mobile Tool folder (if exist) from
    C:\ProgramData\

  • Remove all other USB devices (external HDD, backup drives, other phones, etc.) and cables connected to PC to avoid issued due to voltage loss.

  • OFFLINE KDZ FLASHING DOES NOT LOOSE PHONE DATA, BUT YOU MUST BACKUP YOUR PHONE IN ANY CASE.
3. Downloads:-

Download zip file attached below.

4. Install LG Drivers (internet required for this):

Extract B2CAppSetup.zip anywhere on PC and Run B2CAppSetup.exe as administrator. Accept Agreement and a window will appear. Click on OK button (Bottom Right) on instructions. Now connect your LG Device to PC in LG Software mode. B2CAppSetup tool will detect it. Now Click on Install USB Drivers (2nd option on Top Left). It will automatically download and install drivers for your device. If Install USB Drivers options goes grey (Disable) after detecting phone, it means latest USB Drivers are already installed.

After installing USB Drivers please REBOOT YOU PC

Now Connect Phone in Software Upgrade Mode: Switch OFF the phone and Press VolumeUP button and insert USB cable into the phone, Now phone should show Firmware Upgrade Mode.

Let windows load any drivers, wait until it finishes. TWO ENTRIES SHOULD APPEAR IN DEVICE MANAGER IF DRIVERS ARE PROPERLY INSTALLED

attachment.php


After installing device drivers unplug the phone from PC

5. Starting The Installation Process:

Extract LG Flash Tool 2014.zip to C:\ drove of PC.
Open LG Flash Tool 2014 folder and run LGFlashTool2014.exe and administrator.

LG Flash Tool 2014 windows will appear.

  1. Select "3GQCT" in Type of Flash.
  2. Select "EMERGENCY" for PhoneMode.
  3. Select your KDZ file in the Select KDZ File box.
  4. Press "Normal Flash" button. (as pic below)

attachment.php


IMPORTANT: Do not change the names of the KDZ files. (They should look like.... "D41010a_00.kdz" or other version in same style.)

Now "Read Phone Information" box will open with blank information, Just press "Start"

attachment.php



Now "Select country and language" small box will open. Here select "Different Country" and "English" and press "OK"

attachment.php


The utility starts the official LG Mobile Support Tool

attachment.php


After a few seconds a screen will appear saying "The phone is disconnected from PC.". Do not click on any button.

attachment.php


Now again connect phone in Software Upgrade Mode: Switch OFF the phone and Press Volume UP button and insert USB cable into the phone, Now phone should show Firmware Upgrade Mode and click retry button.

Now actual flashing will start, and if your KDZ file is good flashing will end without any issue.

JUST RELAX!! SIT BACK WITH HANDS FOLDED BEHIND HEAD AND WATCH IT HAPPENING.

When it finishes full flashing and phone will start rebooting.

YOU CAN REMOVE CABLE AFTER 100%, AND FLASHING IS FINISHED!!! Close all programs.

attachment.php
 

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Last edited:

gdjindal

Senior Member
In case of Bootloops try this :-

This might come in handy for some people too:

I just this method many times to go back to stock, but the last time I tried this my device got into a bootloop. I actually fixed this by shutting down the phone, starting the phone with the power and volume down button pressed, releasing those buttons when the LG logo shows up and immediately pressing them again, then choose to perform a factory reset. After factory reset the phone booted like I expected it to. Might not work for everyone, but is definitely worth a try before you try to flash the KDZ again.
 
Last edited:

gdjindal

Senior Member
Heving Problem.....
Here are some troubleshooting steps :-

  • Check USB Derives installed properly for L90.

  • When you connect phone in software upgrade mode with PC, Make sure Device Manager Showing Phone is connected.

  • Disable any firewall or antivirus if active.

  • when flash tool prompts to reconnect the phone or saying device not found, just unplug phone==> pull battery out ==> insert it back==> Reconnect phone in software upgrade mode and retry flashing.

  • If still not working, then quit flash tool => Restart PC => This time first connect phone in software upgrade mode to PC=> then launch flash tool and try to flash .

  • Disconnecting and reconnecting phone for several times could also helpful.
 
Last edited:

rozyid

Senior Member
Dec 31, 2010
269
43
moxer
What latest firmware for D410?, on my phone V10b-ESA-XX ( for indonesian region).

Can i flashing used firmware D410 Europe region...?

Thanks

Sent from my GT-I8160 using xda premium
 
  • Like
Reactions: Srh420

gdjindal

Senior Member
What latest firmware for D410?, on my phone V10b-ESA-XX ( for indonesian region).

Can i flashing used firmware D410 Europe region...?

Thanks

Sent from my GT-I8160 using xda premium

In india it is V10c-IND-XX and I am unable to understand what are you asking about firmware flashing.

Sent from my LG-D410 using XDA Premium 4 mobile app
 

gdjindal

Senior Member
Hi OP,

1 question...

I went to the download site and put my IMEI for 1st number,,, i got a download file... Indian..
But i put 2nd imei also and second file i am downloading, but it has same file name.....

SHould i download both or only 1 will do ??

thanks
Greg

:eek:I am surprised by your question :confused:

But download only one KDZ file, it doesn't matter what IMEI number you use to generate the download link.
With both IMEI numbers the same link will be generated, so download with any link but only for once.
 

kinesis

Senior Member
Apr 12, 2008
55
1
I want a v3.4.x kernel for the LG OPTIMUS L90 (D415) that has iptables/netfilter built in. Then I can get SSH tunneling to work.

With my Sprint Epic I would use a tool called Odin, is the method of flashing a kernel to this phone the same? Can anyone get me the instructions on how to do it properly? I'd assume it is much different. What is this KDZ thing about? How come there are no [KERNEL]'s or [ROM]'s posted in this L90 forum?
 

gdjindal

Senior Member
I want a v3.4.x kernel for the LG OPTIMUS L90 (D415) that has iptables/netfilter built in. Then I can get SSH tunneling to work.

With my Sprint Epic I would use a tool called Odin, is the method of flashing a kernel to this phone the same? Can anyone get me the instructions on how to do it properly? I'd assume it is much different. What is this KDZ thing about? How come there are no [KERNEL]'s or [ROM]'s posted in this L90 forum?

Hello Kinesis,

Here is link to LG OpneSource Code Distribution Site of D415

https://www.lg.com/global/support/opensource/opensourceList?types=NAME&search=D415

Because I have never flashed kernel to any phone, so I also don't know how to flash kernel to LG Phone. KDZ is extension of LG Phone's Stock Roms or Stock Firmwares (Eg. : V10C_00.kdz) . To flash a kdz file you need LG Flash Tool (Download from Attachments)
 

Reasec

Senior Member
Aug 14, 2011
113
15
Stuck at 4%, every freakin time. Tried it like 50x.

One question.. FW for my IMEI is D32010A_00 which is already in my phone, but i want to flash international version 10c. Is this even possible?
 
Last edited:

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  • 72
    First of all, This is not my original work. All credits goes to :cowboy:quangnhut123:cowboy:, who modified this tool for us. I am just sharing this GUIDE for easy flashing KZD to L90

    I have tested this method myself and it is working perfectly for me, but it is also possible that it might not work for you for some reasons, so don't panic, just post your problem or whatever error you are facing (please attach screenshot if possible). I or other thread members will try to troubleshoot it. After resolving the problem I'll update this post, so that other members do not face such problem again.
    • PLEASE, USE THIS TUTORIAL AT YOUR OWN RISK, IF SOMETHING WENT WRONG (because of your stupidity) ME OR XDA WILL NOT RESPONSIBLE FOR YOUR LOSS.
    • Flashing KDZ removes Root and CWM, so you will need to root again.
    • Flashing KDZ does not wipe your data, but if you get bootloops you need to hard-reset it, so please backup data first.
    DEVICES FLASHED WITH THIS GUIDE AND TESTED OK: LG L90 (D410)

    1. Download KDZ file

    To download KZD for you Device GOTO http://lg-phone-firmware.com/index.php?firmware=1
    Enter IMEI no of your device.

    attachment.php


    Enter IMEI Number of your LG Device and press Download Button. It will generate a download link for kdz file.
    Be warned the KDZ that your going to use will be auto deleted (may be not) so make another copy

    2. Precautions:-

    • Please temporarily disable any Adblock add-on in your browser and I recommend to check your host file
      C:Windows\system32\drivers\etc\host
      Enable Show Hidden Files in Folder Option (Don't disable this option until kdz flashing process completes) and Delete the LG Mobile Tool folder (if exist) from
      C:\ProgramData\

    • Remove all other USB devices (external HDD, backup drives, other phones, etc.) and cables connected to PC to avoid issued due to voltage loss.

    • OFFLINE KDZ FLASHING DOES NOT LOOSE PHONE DATA, BUT YOU MUST BACKUP YOUR PHONE IN ANY CASE.
    3. Downloads:-

    Download zip file attached below.

    4. Install LG Drivers (internet required for this):

    Extract B2CAppSetup.zip anywhere on PC and Run B2CAppSetup.exe as administrator. Accept Agreement and a window will appear. Click on OK button (Bottom Right) on instructions. Now connect your LG Device to PC in LG Software mode. B2CAppSetup tool will detect it. Now Click on Install USB Drivers (2nd option on Top Left). It will automatically download and install drivers for your device. If Install USB Drivers options goes grey (Disable) after detecting phone, it means latest USB Drivers are already installed.

    After installing USB Drivers please REBOOT YOU PC

    Now Connect Phone in Software Upgrade Mode: Switch OFF the phone and Press VolumeUP button and insert USB cable into the phone, Now phone should show Firmware Upgrade Mode.

    Let windows load any drivers, wait until it finishes. TWO ENTRIES SHOULD APPEAR IN DEVICE MANAGER IF DRIVERS ARE PROPERLY INSTALLED

    attachment.php


    After installing device drivers unplug the phone from PC

    5. Starting The Installation Process:

    Extract LG Flash Tool 2014.zip to C:\ drove of PC.
    Open LG Flash Tool 2014 folder and run LGFlashTool2014.exe and administrator.

    LG Flash Tool 2014 windows will appear.

    1. Select "3GQCT" in Type of Flash.
    2. Select "EMERGENCY" for PhoneMode.
    3. Select your KDZ file in the Select KDZ File box.
    4. Press "Normal Flash" button. (as pic below)

    attachment.php


    IMPORTANT: Do not change the names of the KDZ files. (They should look like.... "D41010a_00.kdz" or other version in same style.)

    Now "Read Phone Information" box will open with blank information, Just press "Start"

    attachment.php



    Now "Select country and language" small box will open. Here select "Different Country" and "English" and press "OK"

    attachment.php


    The utility starts the official LG Mobile Support Tool

    attachment.php


    After a few seconds a screen will appear saying "The phone is disconnected from PC.". Do not click on any button.

    attachment.php


    Now again connect phone in Software Upgrade Mode: Switch OFF the phone and Press Volume UP button and insert USB cable into the phone, Now phone should show Firmware Upgrade Mode and click retry button.

    Now actual flashing will start, and if your KDZ file is good flashing will end without any issue.

    JUST RELAX!! SIT BACK WITH HANDS FOLDED BEHIND HEAD AND WATCH IT HAPPENING.

    When it finishes full flashing and phone will start rebooting.

    YOU CAN REMOVE CABLE AFTER 100%, AND FLASHING IS FINISHED!!! Close all programs.

    attachment.php
    21
    In case of Bootloops try this :-

    This might come in handy for some people too:

    I just this method many times to go back to stock, but the last time I tried this my device got into a bootloop. I actually fixed this by shutting down the phone, starting the phone with the power and volume down button pressed, releasing those buttons when the LG logo shows up and immediately pressing them again, then choose to perform a factory reset. After factory reset the phone booted like I expected it to. Might not work for everyone, but is definitely worth a try before you try to flash the KDZ again.
    6
    Heving Problem.....
    Here are some troubleshooting steps :-

    • Check USB Derives installed properly for L90.

    • When you connect phone in software upgrade mode with PC, Make sure Device Manager Showing Phone is connected.

    • Disable any firewall or antivirus if active.

    • when flash tool prompts to reconnect the phone or saying device not found, just unplug phone==> pull battery out ==> insert it back==> Reconnect phone in software upgrade mode and retry flashing.

    • If still not working, then quit flash tool => Restart PC => This time first connect phone in software upgrade mode to PC=> then launch flash tool and try to flash .

    • Disconnecting and reconnecting phone for several times could also helpful.
    3
    This might come in handy for some people too:

    I used this method many times to go back to stock, but the last time I tried this my device got into a bootloop. I actually fixed this by shutting down the phone, starting the phone with the power and volume down button pressed, releasing those buttons when the LG logo shows up and immediately pressing them again, then choose to perform a factory reset. After the factory reset the phone booted like I expected it to. Might not work for everyone, but is definitely worth a try before you try to flash the KDZ file again.
    2
    How when device position is softbrick or bootloop..? And debuging not aktif... ?

    Thanks

    Sent from my LG-D410 using xda premium