Groovy Android Zenfone 2

ASUS Z00A and Z008 devices


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Installation


This tutorial is based on the official ASUS unlock tool that only works under stock Android L. Migrations from stock M are know to have issues with both sim cards not being detected. If you are running Android M you can downgrade (links below provided).


Check your model

Follow these steps to check if your device is Z00A (ZE551ML) or Z008 (ZE550ML).


Unlock the bootloader

Only needed if coming from stock firmware. If you are running any custom ROM, jump to the next step.

Z00A (ZE551ML)

  1. Make sure you are running stock Android L V2.20.40.139 or later. If you are running a previous version or Android M click here to download a compatible one.
  2. Download the bootloader unlock app for your Z00A/ZE551ML.
  3. Install the APK, open it and follow the steps required to unlock (the app is pretty self explanatory).
  4. Next time you reboot, you will see a white Asus splash screen. That means that the bootloader has been successfully unlocked.

Z008 (ZE550ML)

  1. Make sure you are running stock Android L firmware V2.20.40.59 or later. If you are running a previous version or Android M click here to download a compatible one.
  2. Download the bootloader unlock app for your Z008/ZE550ML.
  3. Install the APK, open it and follow the steps required to unlock (the app is pretty self explanatory).
  4. Next time you reboot, you will see a white Asus splash screen. That means that the bootloader has been successfully unlocked.

Upgrade bootloader and install recovery

This package will install MM bootloader and TWRP 3.2.1.0

Z00A (ZE551ML)

  1. Connect the device to your PC and enable USB debugging. After enabling USB debugging, Android will ask you to confirm the first time you are accessing from your PC. Pay atention to the phone screen, too.
  2. Download the upgrade package for your Z00A/ZE551ML.
  3. Unzip the package.
  4. Open a terminal window and navigate to the folder where you unzipped the bootloader upgrader.
  5. From the command line run the upgrade script relative to your OS with administrator privileges: upgrade.bat for Windows, upgrade_linux.sh for Linux, upgrade_mac.sh for Mac.
  6. The phone must enter fastboot mode and after that the process continues until TWRP is flashed. It takes a while, so be patient (if for some reason the script says that it was unable to install the recovery, it has to be flashed manually via fastboot. In this case both tools, ADB and fastboot are needed).
  7. Once upgraded, before booting up your device will say “Your device has failed verification and may not work properly.” Don’t worry, it’s just a warning and cannot be removed.

Z008 (ZE550ML)

  1. Connect the device to your PC and enable USB debugging. After enabling USB debugging, Android will ask you to confirm the first time you are accessing from your PC. Pay atention to the phone screen, too.
  2. Download the upgrade package for your Z008/ZE550ML.
  3. Unzip the package.
  4. Open a terminal window and navigate to the folder where you unzipped the bootloader upgrader.
  5. From the command line run the upgrade script relative to your OS with administrator privileges: upgrade.bat for Windows, upgrade_linux.sh for Linux, upgrade_mac.sh for Mac.
  6. The phone must enter fastboot mode and after that the process continues until TWRP is flashed. It takes a while, so be patient (if for some reason the script says that it was unable to install the recovery, it has to be flashed manually via fastboot. In this case both tools, ADB and fastboot are needed).
  7. Once upgraded, before booting up your device will say “Your device has failed verification and may not work properly.” Don’t worry, it’s just a warning and cannot be removed.

Install the ROM

  1. Download the latest build, Open GApps x86, 7.1, pico or nano and copy both ZIP packages to the device.
  2. With the device powered off, hold Volume Up + Power. Once the device is on, release the Power button and keep holding the Volume Up. On the next screen (fastboot mode) use Volume Down to scroll to “RECOVERY” and then press Power to select.
  3. Once in TWRP, select Wipe and then Advanced Wipe. Select Cache, System, Data and Dalvik partitions to be wiped and then Swipe to Wipe.
  4. Go back to return to main menu, then select Install.
  5. Navigate to the folder where you saved the ROM package, and select it.
  6. Follow the on-screen prompts to install the package.
  7. Install GApps (pico or nano) using the same method.
  8. Once installation has finished, return to the main menu, select Reboot, and then System. First boot may take a while, so be patient.

Root the system using Magisk (optional)

  1. Download Magisk and Verified Boot Signer from the download area. Copy both packages to the device.
  2. With the device powered off, hold Volume Up + Power. Once the device is on, release the Power button and keep holding the Volume Up. On the next screen (fastboot mode) use Volume Down to scroll to “RECOVERY” and then press Power to select.
  3. Once in TWRP, select Install. Navigate to the folder where you saved Magisk and select it.
  4. Follow the on-screen prompts to install the package.
  5. Install Verified Boot Signer using the same method. This package is needed to avoid bootloop caused by Magisk.
  6. Once installation has finished, return to the main menu, select Reboot, and then System.

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