Thursday, December 31, 2015

How to Update LG G3 D855 to Official Android 6.0 Marshmallow 30B Firmware.

LG G3 D855 is finally getting updated to 30B Android 6.0 Marshmallow OS in different countries around the globe.

You can easily install this KDZ using LG Flash Tool (2014). Simply import the KDZ package into the Flash tool, connect your G3 to the computer in download mode and perform “CSE Flash” with default settings. Make sure all the necessary drivers are installed.

Firmware Details

  • Device: LG G3
  • Model: D855
  • Android: v6.0 Marshmallow
  • Firmware: 30B
  • Build: MRA58K
  • Kernel: 3.4.0
  • Status: Official
  • Type: Full firmware image
  • Date: 30.12.2015
  • Region: Global
  • Format: KDZ
  • File Name: D85530B_00_1217.kdz

View my Flipboard Magazine.

 ÷ Prerequisites:

•This thread is for the D855 variants. Files are from software version 30B (Android 6.0 Marshmallow).
Included below: TWRP-flashable stock rom, boot and modem zips. KDZ and individual images are also included.

Since this is a fully stock Marshmallow firmware, you’ll lose root upon upgrade and you might encounter issues while rooting this build. To maintain root privileges you are recommended to use the TWRP-flashable images of 30B by Autoprime instead.


Android Custom ROM fix ® provide various Firmware Updates and Rooting process along with Custom ROM,Modes,file are all belong  to their owners/developers. The autor of this site or the developers are not responsible,  if you damage or brick your device.Do it on your own risk and follow the instruction properly.

* Important:

Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files.

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