Unlock Asus Zenfone 2 Bootloader

unlock-bootloadert-asus-zenfone-2

Preparation

  • For Asus Zenfone 2 ZE551ML (Z00A)

    1. Update the firmware to version 2.19.40.18
    2. Download Splash Screen for ZE551ML
  • For Asus Zenfone 2 ZE550ML (Z008)

    1. Update the firmware to version 2.19.40.12
    2. Download Splash Screen for ZE550ML
  • Make sure that ADB is properly installed.
  • Rooted Asus Zenfone 2

Unlock Asus Zenfone 2 bootloader

  1. Connect device to PC/Laptop using data cable
  2. Make sure that ADB is granted trough SuperSU app in Zenfone 2
  3. Go to ADB folder, hold shift button then right click, choose “Open Window Command Here”
  4. Type

    adb shell
    su
    getprop ro.isn > /factory/asuskey
    reboot bootloader

  5. Zenfone 2 will reboot to bootloader, on screen “Unlock Bootloader” text will apear then device will reboot again.
  6. After reboot splash screen will white, wait until it boot into homescreen
  7. Once again, open command window, type

    adb reboot bootloader
    fastboot devices
    fastboot flash splashscreen splashscreen.img

  8. Done, reboot your device once again then the splash screen will back to normal (black color)

Do With Your Own Risk

note:

  • unlock bootloader will not erase data in internal storage
  • until this post written, there is no relock method to unlock bootloader.

Dowload Support file

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