HOW TO FLASH ADB VIA SIDELOAD

Preparing Tools:

     Intel USB Driver for Android [https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices]
     ADB Fastboot Tool [https://www.dropbox.com/s/he82h8rjon3ikyv/adb-fastboot-win.zip]
     Asus ZenFone Firmware (Download From the Asus website, and Put it in the same folder with fastboot adb tools)

Steps / Tutorial:

     Turn Off your zenfone
     Go to recovery mode by pressing power + volume down, the android logo Appears press the volume up + down and then release the volume up (still hold the volume down until recovery) then apply update from ADB option
     Connect your USB Cable to Zenfone with your PC / laptop
     Open a command prompt in Windows (in the same folder where ADB is located)
     Check the connection by connection type adb devices if successful will be a list of zenfone device
     Type adb sideload file.zip (file.zip = adjust the filename, Asus ZenFone firmware that you downloaded Earlier)
     Wait until the process is complete
     Zenfone will flash to clean thoroughly

This method can be used to downgrade, or that an error during the install root (root will disappear completely) DWYOR !!! Indonesian Version:
Prepare equipment:

     Intel USB Driver for Android [https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices]
     ADB Fastboot Tool [https://www.dropbox.com/s/he82h8rjon3ikyv/adb-fastboot-win.zip]
     Asus ZenFone firmware (download from the ASUS website, and put in a folder with ADB Fastboot Tool

Steps:

     Turn off your Zenfone
     Sign recovery by pressing power button + volume down simultaneously, the logo will appear Android / Android robot press the volume up and down (+ and-) then release only the top button and keep pressing the button - until a recovery, then install the update from ADB
     Connect your Zenfone via USB cable to your PC / Laptop
     Open a command prompt (cmd) in Windows from the ADB folder
     Check the connection by typing "adb devices" if successful will be written Zenfone device
     Type "adb sideload file.zip" (file.zip = adjusted with Zenfone firmware zip file name that have been downloaded previously)
     Wait until the process is complete
     done



     This method can be used also to downgrade, or when an error / bootloop during the process of rooting / oprek2 other

DWYOR !!!

Credit: Ardi Bin Sal [Experiencing & Testing] Joshua Albert [Translate] http://www.asus-zenfone.blogspot.sg/2014/05/flash-tutorial-via-adb-sideload.html

BY Muhamad Fauzy