South Korea LG X400 LGMK121S firmware

in Download on - LG Stock Firmware

LG X400 Stock firmware, LGM K121S firmware, K121S20A_00_0917.kdz

This is the LG X400 (K121S) firmware K121S20A_00_0917.kdz!


Model: LGMK121S

Suffix: ASKTOP

Buyer: SKT

Software Version: K121S20A_00

OS Version: OMR1

File Name: K121S20A_00_0917.kdz

KDZ File size: 1725069860

How to download LG firmware

Because LG has made some changes in its server settings, You can not use browser to download the firmware from above URl from LG server directly with Browser. Please check this guide on how to solve the blank page issue when trying to download LG firmwares.

To unbrick/Restore Your phone back to Stock, You need to download and install:

1) LG USB Drivers
2) LG Up Software
3) LG UP DLL file for your phone model

If you experience any issues with the firmware and LG UP tool, please contact us

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