Update LG G3 D855 on 6.0 Marshmallow: Officiall Update


If you have LG G3, then here is a great news for you that Android 6.0 Marshmallow has come for many LG devices and in this post, I will tell you how to Update LG G3 D855 on 6.0 Marshmallow Rom. LG G3 is an amazing slim designed smartphone. It is a manual update if you do not receive the OTA update for LG G3 and you want to update your phone manually on 6.0 Marshmallow then you are at the right page from where you can update your phone with easy steps. At that moment, this update is only available for international model of LG G3 D855. If you have this model then follow the instructions for updating the mobile.

The features of the ROM are great and Bugs free. This is the latest version of Android update and has many new features which give the mobile new look, better performance, upgrades, animation and user interface is changed now. You have a good experience using the Android 6.0 Marshmallow. The performance is smooth and many new and amazing features.

We will use the new LGUP tool to flash Marshmallow KDZ file to updating the LG G3. It is a new and good tool for fleshing the Marshmallow to the phone for the great experience. LGUP is the easier flashing tool than LG flash tool. Using LGUP there is no need to enter in mobile’s download mode. Those who want to update their LG G3 D855 to 6.0 Marshmallow then follow the instructions below.


This method is only for LG G3 D855, check the model before starting the process. This process is only for advanced users if you do not know the process then do not try this. It something went wrong then your device goes unusual. Do this process carefully Androidfunz will not be responsible for any kind of loss.

This is an official update and this will not lose your warranty.

Instructions before starting the process

  • Ist of all check the model number of your LG G3. It must be D855, then proceed. For model checking goes to settings of your mobile.
  • Backup all the important data of your mobile like photos, videos, contacts, apps and important account passwords because data will lose during the process.
  • Charge your phone up to 60% to avoid the power issue.
  • Install LG USB Drivers in your PC.

Materials Required

LG G3 D855

PC or Laptop

USB Data Cable


Android 6.0 Marshmallow KDZ for G3 D855


LG USB Drivers

Steps to Update LG G3 D855 to 6.0 Marshmallow Official

Step 1: Ist of all Download the Marshmallow KDZ file and LGUP Tool from the above link. Then Extract the LGUP Tool.

Step 2: After extracting the LGUP tool you will get two files. Install the DLL file first and then LGUP file in your computer.

Step 3: Launch the LGUP tool on your PC

Step 4: Now connect your LG G3 to the PC with the help of Data cable. LGUP will detect your phone and it will be listed on the LGUP tool screen.


Step 5: Tap on the Upgrade option in LGUP and choose file path. Select the Marshmallow kdz file that you downloaded in the first step.

Step 6: Check the steps again then Click on the Start button for starting the process. This will take some time and after the updating, your device will reboot automatically. Now unplug your mobile from the PC.

Now unplug your mobile from the PC.

Congrats, you have updated your LG G3 D855 on 6.0 Marshmallow official firmware. Hope you will like this article and if there is any problem then comment bellow. If you like the post then share it.


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