How To Flash LG Stylus 3 M400F Firmware File [Stock ROM]

If you own LG Stylus 3 M400F and looking for LG Stylus 3 M400F Firmware. ADB Driver, and Fastboot Driver suitable for your device. Then this is the right place to download LG Stylus 3 M400F Flash File. Sometimes users brick their devices when rooting.

And the only way to fix that is flashing back the LG Stylus 3 M400F Flash File. Firmware Lg G4 Stylus H540 is an application and operating system that control.

How LG Stylus 3 M400F operates, and it flashed into LG Stylus 3 M400F phone’s ROM.

If your LG Stylus 3 M400F device is corrupt or bricked. Download LG Stylus 3 M400F firmware from here. (based on your device model number) and flash it on your smartphone or tablet.

To get it back to a working condition again. In this post, we share LG Stylus 3 M400F official Flash file we test this ROM on many phones it,s work well.

LG Stylus 3 M400F Firmware

To download the official firmware of LG Stylus 3 M400F and flash with any chines Mobiles flashing tool or box.

You can use LG Flash Tool 2014 or LGUP Tool 2016 to unbrick the LG Stylus 3 M400F. This tool is very efficient. Follow the step by step procedure to use One Click Unbrick Tool and unbrick your LG Stylus 3 M400F.

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The Benefit Of LG Stylus 3 M400F Stock ROM:

  • Flash Stock To Unbrick
  • Fix boot loop issue
  • Update and Downgrade
  • Unroot or Fix Bugs
  • To solve the lag or stutter
  • Fix software issues.
  • Return to stock for warranty coverage.

LG Stylus 3 M400F Stock Firmware Details:

  • Region: Indonesia, Arabic
  • Version: 10g
  • Size: 1.50GB
  • Gapps File: Included
  • Device Supported: LG Stylus 3 M400F
  • Tool Supported: LG Flash Tool 2014 or LGUP Tool 2016


M400F10a 03 CLR COM OP 0626.kdz

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Pre-requirements to Install LG Stylus 3 M400F Firmware:

  • Supported Phone: LG Stylus 3 M400F
  • Charge your mobile: You may no less than a half charge.
  • Laptop or PC.

Take LG Stylus 3 M400F Phone Backup:

LG Stylus 3 M400F Flashing Tool And Drivers:


  • Please Read and understand the Full Guide Before Flashing LG Stylus 3 M400F Stock ROM.
  • Use these instructions at your own risk. We will not be responsible for everything that happens to you or your device, resulting from the use of information in this guide.
  • Make sure that the USB drivers for your device are installed on the computer.
  • Your smartphone must have a 70–80% charge.
  • Make a backup copy of important data such as call logs, SMS, and other data, it is to if something goes wrong, your data is not affected.

Instructions to Install Firmware LG Stylus 3 M400F:

1. Extract/Unzip the LG Stylus 3 M400F flash tool .zip file that you downloaded above on your PC. You’ll get a bunch of files required to run the program.

2. Run LG Flash Tool 2014.exe file to Open LG Flash Tool. If it doesn’t open, install Visual C++ Runtime Library from here and then try again.

3.Boot your LG device into Download Mode:

How To Start LG Stylus 3 M400F download mode?

  • Power off your LG device
  • Press and hold the Volume Up button.
  • Connect your device to PC with a USB cable while holding the Volume Up button.

4.  Now load the LG Stylus 3 M400F firmware.kdz file into LG Flash Tool window on your PC.

6. Click the Browse button at the end of the “Select LG Stylus 3 M400F firmware.kdz file” line. Leave every other option as is in the LG Flash Tool window

7. Once you’ve selected LG Stylus 3 M400F firmware.kdz, click the “CSE Flash” button to proceed on flashing the.KDZ firmware to your LG device.

8. Normal Flash” button doesn’t wipe data and the “CSE Flash” button wipes data. If you’re upgrading from a stock firmware, then “Normal Flash” might do.

9. You’ll get a “Read Phone Information” window, it will be blank for the most part. Just hit the START button and proceed.

10. Now you’ll see “Select Country & Language” window. Select “Different” from the country list and then “English” from the language list.

And remember to NOT tick the Smartphone upgrade checkbox, it’s for Windows Mobile phones, not your LG device running on Android

You’ll see a progress bar now. Just wait until it’s 100%, after which you might get an error “Connection to server failed”. This is okay. don’t disconnect your phone at this point

firmware update progress on your phone. Once it’s complete, your phone will automatically reboot.

After the flashing process starts and might take up to 5-10 minutes. So keep patience and wait.

Instructions To Flash LG Stylus 3 M400F With LGUP Firmware Tool:

1. Download and install LG Mobile Driver 4.1.1

2. Download Latest LGUP Tool 2016

3. Download LGUP DLL

5. First Install the DLL file, then install LGUP file on your PC.

6. Run LGUP tool on your PC.

7. Connect your LG smartphone to your PC/laptop.

8. LG G4 Stylus will be listed on the screen of LGUP tool.

9. Now click on the Upgrade option in LGUP and choose the file’s path. Locate the KDZ file and select it.

10. Click on the start button and the process will be started.

11. Once the process is completed, your phone will restart.

Unplug your device, Done!!!

You have successfully Installed the Stock Firmware on your LG device.