Download X420N10J_00 (SKT) LG X4 (LMX420N) ROM KDZ Firmware
Download the KDZ Firmware for LG X4 have model code is LMX420N. This KDZ Firmware file is for region SKT. Please make sure you are trying to download and flash correct model and region. This Firmware version is X420N10J_00 and the OS is Android 8.x Oreo. The firmware size is 2.61 GB. We recommend you are using official LG Flash Tool. LGROM.com will not responsible for any damage caused by using the files on this website
Firmware information
Model
LG X4 (LMX420N)
Region
SKT
Software version
X420N10J / X420N10J_00
File name
X420N10j_00_SKT_KR_OP_0823.kdz
OS
Android 8.x Oreo
File size
2.61 GB
Downloaded
22

How to Flash LG ROM / Firmware / KDZ

Notice: Download and Flash your phone with your own risk. We will not responsible for any damage caused by using the files on LGROM.com

  1. Download LGROMUP
  2. Boot your phone to Download Mode (Hold Volume up button and connect cable)
  3. Install LG Driver if you are not installed it before
  4. Open the LGROMUP tool.
  5. Select Serial Port, DLL, KDZ file
  6. Click Flash and wait to finish