Asus Zenfone 3 ZE552KL Bootloader Unlocking Method


Asus Zenfone 3 ZE552KL Bootloader Unlocking Method. Unlocking your Asus Zenfone 3’s bootloader is the first step to rooting your Asus Zenfone 3, installing custom recovery and flashing custom ROM’s. And, contrary to popular belief, it’s actually fully supported on many phones. Here’s how to unlock bootloader  of your Asus Zenfone 3.


Asus Zenfone 3 ZE552KL Bootloader Unlocking Method

 How to unlock Bootloader of Asus Zenfone 3 ZE552KL



Rooting, Unlocking or  flashing any Custom Recovery/Custom ROM’s results to the void of the warranty of the device. and its authors will not responsible for bricked devices, dead SD-card or any damage in your device which is incurred in the process of flashing Custom Recovery/custom ROM/Rooting or any development process the device. We highly advice to take a backup of your device prior to performing the process. Please do some research if you have any concerns about features included in this ROM, before flashing it! You are choosing to make these modifications. Nevertheless if you need any help, just comments already. We will always pleased to help you.


Downloads And Requirements

To Unlock Bootloader of Asus Zenfone 3, First and foremost take a complete backup of your important data such as contacts, messages or other media data in your PC/Laptop or in any other device. Make Sure your mobile’s battery juice is above 70%. This Bootloader Unlocking method also required some files. Ao first download all the files from download link bellow —


How To Unlock Bootloader Of Asus Zenfone 3 (ZE552KL)


Step 1:

First of all,  Download and Unzip the “Asus Zenfone 3 ZE552KL” file.


Step 2:

Turn off your Asus Zenfone 3 and reboot into Bootloader mode/Fastboot Mode. To enter Bootloader mode/Fastboot Mode press and hold together the Volume Up + Power key for a while.  You should release the Power key as soon as the phone vibrates. Afterwards press Volume Down to select option “Bootloader mode/Fastboot Mode“, and press Power button to confirm. Then Connect your phone through USB cable with your PC/Laptop.


Step 3:

First and Foremost you have to install driver of your phone in your PC/Laptop. Open the Asus Zenfone 3 ZE552KL Unlocker folder. Double click over “0.Install_Driver.bat”  to install all the driver.


 How to unlock Bootloader of Asus Zenfone 3 ZE552KL

Secondly Double click to execute “1.unlock_{Your_Device_Model}.bat“. Please do this step with care. You must need to know the actual model of your device. If you choose the wrong one, You might end up bricking your device. If your device variant is ZE520KL then choose “1.unlock_ze520kl.bat” if your using ZE552KL variant than you have to choose “1.unlock_ze552kl.bat 

‘Run As Administrator  is recommended’

1.unlock_ze520kl.bat (for ZE520KL) 
1.unlock_ze552kl.bat (for ZE552KL)


You will be shown a CMD.exe, Then press any key to continue. Then follow the process as screen say.

How to Unlock Bootloader of Asus Zenfone 3 (ZE550KL-ZE552KL)


Method 2

If the bat file or above method does not work , then you can try to execute following commands:


  • fastboot flash all unlock_{Device}.raw for Asus Zenfone 3 ZE520KL)


fastboot flash all unlock_ze520kl.raw


  • Fastboot flash all unlock_{Device}.raw for Asus Zenfone 3 ZE552KL)


fastboot flash all unlock_ze552kl.raw


After that fastboot reboot-bootloader and then fastboot oem unlock-go.

Once You have completed Asus Zenfone 3 ZE552KL Bootloader Unlocking Method, You can now install custom recovery, root your phone and customized operating system and so on.



1 Comment
  1. Kapilan says

    Does this still work in 2020 with the latest Oreo update from Asus?

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