How To Flash LG Firmware Using LGUP Tool [Flash KDZ Firmware]

Flash LG Firmware Using LGUP Tool To Flash KDZ Firmware

Recently we post a full detail article on “how to flash LG firmware using LG flash tool?” LG flash tool is the universal flash tool to install official firmware on all LG devices. Same as, LGUP tool is another LG flash tool to flash LG firmware. So in this article we will show you how it’s easy to install firmware/stock rom on any LG phones using LGUP tool.

If you are getting any issue to use LG flash tool or unable to flash firmware using Lg flash tool 2014 then try this LGUP flash tool to flash LG firmware on any LG phone model. Are you new about LGUP flash tool and don’t know how to use LGUP tool then follow the guide carefully to flash LG KDZ firmware on any LG smartphone using LGUP tool.

Important Points About LGUP Tool

  • LGUP flash tool and LG flash tool, both tools can flash LG firmware or stock ROM.
  • LGUP flash tool can be used to upgrade or downgrade LG devices but you can’t use it for bricked LG devices.
  • LG device should be accessible, otherwise you can’t flash firmware using LGUP tool.
  • Unroot LG smartphone using LGUP tool.
  • Revert the device back to stock rom by flashing kdz firmware on LG device.

Guide To Flash LG Firmware Using LGUP Tool

It’s important to know that LGUP flash tool can upgrade or downgrade firmware version or can flash firmware to revert the stock Rom again. In case, lg device is bricked or locked then you can’t use LGUP flash tool. In that case use lg flash tool to flash LG firmware from here.

Guide: Unbrick LG devices using LG flash tool

So we are assuming that your LG phone is accessible by you and it’s locked or bricked. Now follow the instructions and Install Stock Firmware on LG Smartphone with LGUP Flash Tool.

Download Latest LGUP Tool & LG Drivers

Latest LGUP Tool – Download

LG USB Drivers –

Instructions To Use LGUP Tool To Install LG Stock ROM

  • First off all download the stock ROM or firmware for your own device.
[Make sure you are going to download appropriate firmware according your device model number and region.]
  • Extract the downloaded LG firmware on pc. [It should be in .KDZ or .TOT format.]
KDZ firmware LG
LG Stock ROM Format
  • Go to your device and enable USB debugging & OEM unlock. [GUIDE]
  • Connect the device with pc via USB cable and Popup will appear on the phone screen to allow USB debugging. Just click on ok.

allow usb debugging permission

  • Download LGUP flash Tool and extract the LGUP zip file on pc.
[Important: Install DLL version first and then install the original LGUP tool. Skip the step, if already installed]

For example: you will see two different files in extracted LGUP tool folder. At first install the LGUP_Install_Ver_1_14_3.msi file and then install LGUP_8974_DLL_Ver_0_5_CODEFIRE.MSI file.

LGUP setup files

  • Download and install LG USB drivers. Otherwise LGUP tool will not start automatically.


  • Run LGUP tool on windows pc as administrator.
  • Select any option from “REFURBISH”, UPGRADE and PHONE SETTING under the “Process” tab.

  • Next select “File Path” and browse the .kdz firmware from extracted LG firmware folder.

  • Finally hit on “START” button to start LG stock ROM flash process. LG firmware flashing process will start and you can see progress bar on LGUP flash tool.
[Important: Don’t touch or unplug USB cable in between the flashing process]

LGUP firmware flashing

  • After completing the process phone will reboot automatically and open with new installed stock firmware.
  • Go to phone “setting” >> about phone >> check firmware version. This time it should upgrade.
  • Done!!!

Watch Video TO Learn More About LGUP Stock ROM Flashing

Q&A About LGUP Tool – Clear Your Doubts

Q1. IS it safe to flash LG mobile using LGUP Tool?

Ans. Yes it’s 100% working and tested LG firmware flash tool and allows users to upgrade & downgrade android version.

Q2. Can we use LGUP tool to unbrick LG smartphones like bootloop, stuck on lG logo etc?

Ans. You may try this LGUP tool to unbrick LG mobile but we highly recommend you to use LG flash tool to unbrick LG mobile into download mode. Read From Here.

Q3. Can I use LGUP tool into download mode?

Ans. No, you can’t use LGUP flash tool into download mode. Your device should be accessible to flash LG Stock firmware using lgup tool.

Q4 Can I use LGUP tool to downgrade LG mobile firmware version or android version?

Ans. Yes, it allows users to flash any lower or upper firmware version. That means, downgrade or upgrade LG mobile using LGUP tool.

This is all about how to use LGUP tool and how to flash LG firmware using LGUP tool? This is an amazing LG flash tool to install stock rom on any LG mobile. Just flash official LG firmware and fix any type of software related issues, soft brick or get back stock rom again.

Till now getting any issue to flash any LG model, please leave your comment below. We will try to update complete detail post about it.

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.