How to Unlock Bootloader on LG G4 – Almost all models

In this tutorial checkout how to unlock Bootloader on LG G4 Android Smartphone – Complete Guide

LG G4 is the latest flagship Android smartphone from LG and it comes with 5.5 inch display with 1440 x 2560 pixels resolution, 1.44 GHz Quad-core Cortex-A53 and 1.82 GHz dual-core Cortex-A57 processor coupled with Adreno 418 GPU and 3GB RAM and 32GB internal storage with 128GB expansion slot for microSD card. It sports 16MP primary camera and 8MP front facing secondary camera and runs on Android 5.1 Lollipop firmware out of the box. All these specs are available with a price tag of approx. $650 (Around INR 41,278).

Unlock Bootloader on LG G4

LG recently has started promotion officially unlocking Bootloaders of their devices, starting with LG G4. As the unlocking the Bootloader on LG G4 is made official there is less risk of getting your device bricked. Though the procedure is made official it doesn’t mean that it will void warranty of your device. So my friends follow the steps listed below only if your warranty period is over or you doesn’t care about warranty being voided.

So without any further ado let’s proceed and unlock Bootloader on LG G4.

Getting Prepared:

  1. Make sure that you have backed up all of your important data to PC, as unlocking the Bootloader wipes all of your data. We have compiled some of the backup guides, follow them and backup your data.

Backup SMS

Backup Contacts

Backup Call Logs

Backup the files on internal storage to PC

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  1. Enable USB Debugging on LG G4 from Settings > Developer Options > USB Debugging. If you can’t find the Developer Options then follow the guide here.
  2. Ensure that all the necessary USB Drivers are installed on your PC.
  3. Setup ADB and Fastboot drivers on PC.
  4. Enable OEM Unlock option from Settings > Developer Options > OEM Unlock.
  5. Make sure you have at least 80-85% battery left, so that G4 won’t die in between the process.

Disclaimer: We should not be held liable or responsible for any damage to your LG G4, and nor the manufacturer is responsible for any damage to your device. So understand the risk involved before proceed with the steps.

How to unlock Bootloader on LG G4:

Step 1: Connect your device to PC using the original data cable.

Step 2: Open the Fastboot folder and press and hold shift key and right click inside the folder and choose open command window here.

Step 3: Now in CMD type:

adb devices

This command will show all the devices attached to PC.

adb reboot Bootloader

This command will reboot your device into Bootloader / Fastboot Mode.

Step 4: Get your Device ID using the following command:

fastboot oem device-id

Now you will receive output which is similar to below:

(bootloader) Device-ID
(bootloader) CD58B679A38D6B613ED518F37A05E013
(bootloader) F93190BD558261DBBC5584E8EF8789B1

Step 5: Copy the above output and paste it in notepad and remove (bootloader), white spaces and hyphens (). So now you will get a single line of string, which is looks similar to the below line:


This is your Device ID.

Step 6: Open web browser on your PC and got to LG’s Official Bootloader unlocking website and scroll to the bottom until you see “Start Unlocking the Bootloader”.

Step 7: Enter your LG login credentials or create a new account and enter your Device ID and IMEI number when asked. You can get your IMEI number by entering *#06# in phone dialer.

Step 8: Now you will receive an Email from LG with the ‘unlock.bin’ file attached.

Step 9: Copy the unlock.bin file to Fastboot folder and type the following commands to unlock Bootloader on LG G4:

fastboot flash unlock unlock.bin

This command unlocks Bootloader and wipes all the user data and settings.

Step 10: Finally reboot LG G4 by entering the following command:

fastboot reboot

Congratulations! Now you have LG G4 with unlocked Bootloader. Do share this tutorial with your friends on Facebook, Twitter and Google Plus and let them know how to unlock Bootloader on LG G4.

Have any issues or queries? Let us know in the comment section below.

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Written by


Tech Lover, Gadget Freak and the founder of Gizmo Advices who loves to play with Custom ROM's, Kernel's etc.


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