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Android Marshmallow beta test starts for the ASUS ZenFone Series

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Android 6.0 Marshmallow plan for ASUS Smartphones

Android 6.0 “Marshmallow” is a version of the Android mobile operating system. First unveiled in May 2015 at Google I/O under the codename “Android ‘M'”, it was officially released in October 2015.

Marshmallow primarily focuses on improving the overall user experience of Lollipop, introducing a new permissions architecture, new APIs for contextual assistants (a feature notably leveraged by “Google Now On Tap”—a new capability of the Google Search app), a new power management system that reduces background activity when a device is not being physically handled, native support for fingerprint recognition and USB Type-C connectors, the ability to migrate data to a microSD card and use it as primary storage, as well as other internal changes.

Today on Zentalk, ASUS Official Forum announced ASUS Smartphones which get Android Marshmallow upgrade support.

Here the list:

Device NameDevice Code
Asus Zenfone 2 FHDZE551ML
Asus Zenfone 2 HDZE550ML
Asus Zenfone SelfieZD551KL
Asus Zenfone 2 Laser 5.5″ZE550KL
Asus Zenfone 2 Laser 5″ 3GZE500KG
Asus Zenfone 2 Laser 5″ LTEZE500KL
Asus Zenfone 2 Laser 6″ZE601KL
Asus Zenfone 2 Laser 6″ZE600KL
Asus Zenfone 2 Deluxe/Special EditionZE551ML
Asus Padfone SPF500KL

[ROM][Full Firmware] ASUS ZenFone 2 ZE551ML Marshmallow WW-

How to OTA update ? (Go to settings>About>System Update>Check for Update)
How to update Manual ? Place to Internal Storage>Restart>Click Update
How to update via ADB sideload ? Here 

ZENFONE 2 ZE551ML firmware: 


ASUS ZenFone 2=ZE551ML(Z00AD/Z00ADA/Z00ADB/Z00ADC) software Image: V4.21.40.223 for WW SKU only* (andriod M)
Improvement Item:
1)Improve Wi-Fi/Bluetooth stability  
2)Update Security patch
3)Improve system stability 
4)Support India SOS call (India only)

Steps of Update: 
1.Check software version of your device**
2.Download device software and Update SOP (From “Manual” Item)
3.Only apply to same SKU update, Example: WW->WW, CN->CN, .
4.Software update cannot transfer the software SKU and downgrade the software version.
5.Wrong SKU may cause update failure, please update the same SKU version only.

*How to know the device model? 
Path: Settings->About-> Model number
Example: ASUS_T00I
**How to know the device software version? 
Path: Settings->About-> software information->Build number
***System upgrade may cause part of data missing, please buckup your important data before system upgrading.

File Size1.18 GB                                                2017.01.10  update
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