How to Unbrick LG Optimus L5 Using KDZ Updater

LG Optimus L5 White Photos/Images

LG Optimus L5 may be bricked due to rooting or flashing any custom ROM’s. Then, you can’t able to use your mobile. You need to flash your Stock ROM back on your LG Optimus L5 android smartphone. Here is a guide to unbrick/flash stock ROM on your mobile.

The LG L5 is one of the best android smartphone in its price range. The phone has comes with Android 4.0 Ice Cream Sandwich as a default Operating System. And the mobile have 4 inch TFT capacitive Touch Screen capable to display 320 x 480 pixels. And the phone has 5 Mega Pixel camera with LED flash. The Phone has comes with 4 GB internal Memory and expandable memory is up to 32 GB. And having 512 MB of RAM.

LG Optimus L5 White Photos/Images


  • We are not responsible for any damages that may happened due to using this guide to your phone. If any problem happened that related to flashing instructions, we will help you to solve it.
  • Use this guide at your own risk. We shall not have any liability or responsibility for whatever happens to you and your device by using the instructions in this guide.
  • The instructions provided in this tutorial for educational purpose only. There is no guarantee that these steps will work for your device.
  • The steps given in this tutorial is only to use with LG Optimus L5. And the model number is E610. Applying this guide to any other device or any other model may produce many problems.
  • Read and Understand the whole tutorial first, before going to perform the steps.

Pre Requirements to Flash / Unbrick LG Optimus L5:

  • We recommend you to take a backup of your data in the mobile using PC suite or any other method. After flashing the device, the data will be deleted. Then you can restore it from the backup file.
  • SMS – How to Backup Messages
  • Contacts – Sync with Gmail App
  • Videos, Images, Songs and Other Files – Copy to internal / External SD card or System
  • APN Settings – Take Manual Note from “Settings > Wireless & Networks > Mobile Networks > Access Point Names
  • And maintain minimum 60% charge in your mobile’s battery. This will help your device to don’t get switched off.
  • Then Enable USB Debugging – “Settings > Applications > Development > USB Debugging”
  • After that Disable all antivirus and firewalls in your PC or Laptop. Because these tools interrupts the process during the flashing.

How to Flash Stock Firmware on LG Optimus L5:

  • First you need a USB driver for your PC or Laptop to connect your mobile.So, download it from LG mobile Support Page.
  • Download the Official Stock Firmware for your phone – Here
  • Download the KDZ Updater tool – Here
  • Then you need to open Emergency mode in your phone. For that, remove battery from phone and re insert it back on mobile. Don’t switch on the phone. You need to press and hold Volume UP + Volume DOWN + Power button together untill you get the yellow screen and Shows text in black color as Emergency Mode.
  • Then connect your mobile with PC or Laptop using original USB Data cable. Using other data cables may produce not detecting problems.
  • Then open KDZ Updater tool. Make sure you are in Administrator account.
  • Then choose, 3GQCT as a type, DIAG as Phone Mode, And select KDZ file option to browse and select the downloaded .kdz file.
  • Make sure you done all the above steps.
  • Then click on Launch Software Update button.
  • This process may take long time to complete. After that the stock ROM has flashed on your device.
  • After the process done, you can see the message Finished in log screen of the tool.
  • Then your mobile will be switched off. And you need to restart the mobile.
  • Then it will take some long time for the first boot.

You can get all the news and tutorials about LG Optimus L5 E 610 – Here

Do share your problems in comment section then we can help to solve it. In future we will update custom ROM’s for your LG Optimus L5. So, stay updated. Now you have successfully learned how to unbrick / Flash LG Optimus L5.

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  • cant get into the recovery mode ……..pls help

    • What kind problem you have? Let me know briefly.

    • Marlon Dimculangan

      i have the same problem w/secure booting error i cant get into emergency mode

    • The buttons to enter the recovery mode mayb vary than what is discribed in this tutorial… Do some research on google

  • plss help

  • while updating my l5 my system restarted .but my phone stuck and displaying update is in progress donot remove cable …but is is not switching on. can u please help

    • Redo the process again. Restart the phone in Emergency mode as I mentioned in the guide.

  • Jayvee Cruz

    me to my lg was not switching on its display downloading is in progress donot remove cable and the emergency mode is not working pls help me to

  • Yan ALC

    The phone no turn on this mode emergency. I tried all, but will not !!

  • Yan ALC

    AAAAAAAAAAAAAAAAAAAH eu to loko esse celular nao é meu e deu um problema macabro, nao quer ligar nem a pau (acho que é looping infinito). Aperto pra ele ligar mas ele fica piscando uma tela preta e não liga nunca. Atualmente tentei flashealo com o KDZ, mas deu erro no KDZ e deu isso no celular, e eu nao sei o que fiz de errado… Nao sei o que fazer me ajudem. tela do celular:

    Não liga mesmo, o celular nao é meuuuuuu e agoraaaaaaaaaa

  • Yan ALC

    I crazy to this phone is not my problem and took a macabre turn on or does not want to stick (I think it is infinite looping). Tightening call him but he flashes a black screen and does not turn ever. Currently tried flashealo with KDZ??, but gave error in KDZ and gave it to the phone, and I do not know what I did wrong … I do not know what to do help me. mobile screen:

    Not the same league, the phone is not mine, and now?

  • Yan ALC

    I managed to resurrect the L5 with KDZ??, you guys have to press the volume keys and connect it to the PC, it will go into download mode just give flashing qith KDZ

  • nmkp

    I cant sync my fb contacts with my lg optimus l5 other accounds are sync without any problm i update the software 2 times and also flashed once but thë problem still there what to do give me a solution

  • Duxy

    How big procesor can be… can it be 1.2gHz or 1gHz??? Pls help

  • shammi pacholi

    i tried to keep my phone in emergency mode but i cant do it…even after following all the steps so plzzz reply me….

  • Paul Needham

    can i use this method to install a pre rooted firmware?

  • henco

    keep getting message Smart : wParam = 2004, =5 and jumps up a number every time

  • Catwoman

    Not sure if this is any help to anyone else, but I’ve eventually managed to get into “download mode” on my bricked phone by removing battery, sim card and sd card, replacing just the battery, and holding just the volume down key while inserting the cable. Next challenge is to find the correct settings on the kdz updater that actually work. At least this makes a change from it only whitescreening or remaining stuck on the CM logo without ever booting up.
    I’m still not sure how the phone got bricked in the first place as I was ultra-careful to check and double-check I had the correct ROM from the CM site, but I suspect the problem might have been a bad sd card.

    • Ivan Bravo

      can i say i love you?

  • Moozey

    I have followed every step correctly, however I cannot get my phone into emergency mode. The only thing that happens is that both the frontlight keys flash and the phone does nothing. Any solutions to this issue would be greatly appreciated.

  • Nitinkumar Chobhe

    If the phone is bricked, then how the hell am I supposed to do this step?:
    Then Enable USB Debugging – “Settings > Applications > Development > USB Debugging”

    • It’s not a necessary man!

      • Nitinkumar Chobhe

        Thanks a lot! It was mentioned in Prerequisites, so I thought that’s mandatory 😉

        By the way, the firmware link is not working; also I could not find it anywhere on internet. Can you share a link which is working?

  • Emmanuel Joseph

    mine says upgrade error “wparam: 100
    pls help

  • Emmanuel Joseph

    the kdz updater never open up ls help

  • Emmanuel Joseph

    mine is also stuck in downloadig is in progress …. loop pls help