Tutorial: How to manually update ZenFone 2 devices into Android 6.0 Marshmallow

ASUS has began rolling out its Android 6.0 Marshmallow update for the ZenFone 2, ZenFone 2 Laser 5.0/5.5, ZenFone Max and ZenFone Selfie, which means it will eventually hit all devices as an over-the-air (OTA) update. Unfortunately, that could take several days or weeks, which can feel like an eternity. The good news is that you can download the official FOTA update straight from ASUS website and manually install it yourself. Do note that only the ZenFone 2 (ZE551ML/ZE550ML), ZenFone 2 Laser (ZE500KL/ZE550KL) and ZenFone Selfie (ZD551KL) devices are currently supported for the manual update, the full firmware of the ZenFone Max is not yet available.

In this tutorial, I will teach you how to manually update your ZenFone 2 into the latest Android 6.0 Marshmallow.

Note: Before you do this, make sure to backup all your files first. I will not be responsible for anything that happens to you or your device when following this tutorial.

INSTRUCTION:

1. Download the full firmware from ASUS. Be careful to select your device accordingly.
   ZenFone 2 (Mirror Link / Beta Update) – ZE551ML 39     ZE550ML
   ZenFone 2 Laser – ZE500KL 17    ZE550KL 18
   ZenFone Selfie – ZD551KL
   Note: After the download has been completed, just leave the firmware on the root storage of your device OR if you are using your computer to download, copy the file also to the root storage. File size is roughly 1.2GB – 1.6GB, use a stable internet connection preferably Wi-Fi.
2. Once the above step is done, you will be notified of a “System Update File Detected” on your notification bar. If you do not get a notification, restart your device.
3. You should see the prompt to select the firmware package you’ve downloaded, make sure that is selected and click on OK. After this, your phone will restart and begin upgrading toy Marshmallow. Then you will see that “Installing System Update” and “Android is upgrading” message.
   Note: It will take roughly 20-30 Minutes for the update to be completed, the phone can’t be used until the update is completed.
4. Your ZenFone 2 / ZenFone 2 Laser / ZenFone Selfie is now upgraded into Android 6.0 Marshmallow!
   You will be greeted with the Marshmallow notifications as the phone booted up and you will also get a prompt that the “System update is successful”.  You may need to update Google Play services and some of the preloaded ASUS apps after the update, so please check it and do so.

If you are having any trouble on updating your ZenFone 2 into Android 6.0 Marshmallow, just leave us a comment below and we will try to answer all your questions.