ASUS provides a specific Unlock Device App (an APK) specifically designed for their hardware.
Before attempting any root method on a Zenfone, consider the following: root zenfone apk better
Because the official method to unlock the bootloader is no longer available for many newer devices, a simple APK cannot root the phone. Even if an exploit existed, the locked bootloader would reject the modified system files, causing the device to fail to boot. ASUS provides a specific Unlock Device App (an