Download the latest LG K40 X420QM firmware (Stock ROM) to fix bootloop and unbrick your device. This file contains the Flashing Utility, USB Driver, and visual instructions. File Size: 2.43 GB.
Download LG K40 X420QM Stock Firmware
📂 LG K40 X420QM Firmware Specifications
| Package Name | LG_K40_X420QM_X420QM20h_00_USC_US_OP_1008_9.0_KDZ(Flash-Files.Net).zip |
| Device Model | LG K40 X420QM |
| Flash Method | Guide How to Flash Firmware |
| File Size | 2.43 GB |
| Tool | |
| Download |
🛠️ Essential Tools
How to Flash: LG K40 X420QM
Use this guide to flash the firmware on your LG K40 X420QM correctly. Make sure your battery is charged.
Phase 1: Setup
Download the firmware and extract it on your PC. Check that you have the Flash Tool and USB Drivers inside the folder.
Phase 2: Drivers
Setup the provided USB Drivers to ensure your computer detects the LG K40 X420QM.
Phase 3: Installation
Open the Flash Tool, load the firmware file, and plug in your device in download mode. Click "Start" to begin flashing.
FAQ: LG K40 X420QM
Is this LG K40 X420QM firmware official?
Yes, the firmware provided here is 100% official from the manufacturer for LG K40 X420QM.
Does flashing LG K40 X420QM delete data?
Yes, flashing LG K40 X420QM stock firmware typically wipes user data. Please backup your data before proceeding.
What is the LG K40 X420QM file size?
The LG K40 X420QM firmware file size is 2.43 GB. Make sure you have enough storage space.
Are the download links safe?
Yes, all download links provided are 100% safe and scanned for malware. We provide direct links to official firmware files.
If you face any problem installing LG K40 X420QM, please comment below.
