[TUTORIAL] How To Upgrade Your Zenfone To Android 6.0.1 Marshmallow Manually

In this post I'll tell you the steps to update your 2nd Gen Zenfone  manually to Android 6.0 Marshmallow

Before diving into this process, be sure to check [Settings]->[About]->[System Update], to ensure FOTA update is available or Not, for your device. In case FOTA is available, you can directly download the update from there.

If FOTA is Not available, you can update your phone Manually by following the Instructions below:

Recommended Tasks Before The Upgrade

1. Backup Your Phones Data To Your PC or To Another Phone

2. Make Sure That, You Are On The Latest Lollipop Firmware

3. Factory Reset You Device

4. Charge Your Phone To 100%

Steps To Download the Marshmallow Firmware

1. Go to : www.asus.com/support

2. Search with your Device Name ( For example: Zenfone Zoom ZX551ML )

3. Select "Driver & Tools"

4. Select OS: "Android"

5. Click On "Firmware"

6. Find the Marshmallow ROM ( with the correct SKU ) for Your Device & Click On "Global" to Start Downloading

If you can't understand the point number '6', check the image below for example,

Steps To Install The Marshmallow Firmware

1. Paste The ROM ( ".zip" file ) Directly Into Internal Memory ( Not inside any Folder ).

[ Note: Do Not Extract The ".zip" File ]

2. Unplug The Data Cable ( In Case You Have Transfered From PC ).

3. You Will Get A Notification : "System Update File Detected" .

Install It By Pressing "OK" ( Restart Your Phone If The Notification Is Not Received ).

4. After Installation Is Finished, You Will Be On Android M.

Recommended Steps After Installation

1. Perform A Factory Reset After Installation Is Complete

I hope this post will help you

If you find this article helpful, give me a Thumbs Up below

If you have any questions or views, let me know in the comments section

Thanks For Reading

Very nice bro...u teach very carefully....i like it bro..

Quite an easy tutorial....

I am waiting for Offical Z00AD Marshmallow update.. Beta version is more unstable than 5.0..

Hi Ronit, as soon as I clicked the notification to update my device , and I selected the 'OK' option, the phone booted into recovery mode. And then I selected 'Reboot Now'. The phone rebooted and there was no change. Can you tell me, which option should we select in recovery?

Is there is marshmallow update for zenfone 2 zze5551ml 2gb version ?

Is there marshmallows update for ZenFone 2 Ze551ml ?

great ... very informative
keep up the good work

zeeshankazi7 posted on 2016/7/1 22:19
Hi Ronit, as soon as I clicked the notification to update my device , and I selected the 'OK' option ...

It should directly switch off & start the update. It should not enter recovery mode.

zeeshankazi7 posted on 2016/7/1 21:49
Hi Ronit, as soon as I clicked the notification to update my device , and I selected the 'OK' option ...

Where to find the Rom File...
I am unable to do it can u please let e kNow..I have completed download after clicking there its asking for extract..u can check screenshot...what to do..?