Download X420MM10W_00 (MTK) LG K40 (LMX420MM) ROM KDZ Firmware
Download the KDZ Firmware for LG K40 have model code is LMX420MM. This KDZ Firmware file is for region MTK. Please make sure you are trying to download and flash correct model and region. This Firmware version is X420MM10W_00 and the OS is Android 9.x Pie. The firmware size is 2.81 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 K40 (LMX420MM)
Region
MTK
Software version
X420MM10W / X420MM10W_00
File name
X420MM10w_00_MPCS_US_OP_0422.kdz
OS
Android 9.x Pie
File size
2.81 GB
Downloaded
31

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