Zenfone 2

Asus Zenfone 2 Deluxe Special Edition First Look and Specifications

Zenfone 2 Deluxe Special Edition

want something special? This may be one of the best variant of zenfone 2 with a limited edition design and different from the others. Let’s see zenfone 2 deluxe special edition.

I am very impressed with the Asus Zenfone 2 deluxe packaging. Asus Zenfone 2 deluxe special edition packaging  has a carbon pattern with red accents in the middle add a special impression. zenfone 2 deluxe red lettering at the top is perfect shades combined with carbon.

What do you get if you buy zenfone 2 special deluxe edition? You will get two pieces back cover, one with silver metallic color that has 3d design deluxe and one back cover with carbon style. both were very comfortable in the hand, especially patterned 3d deluxe that add grip when in the hands

How about the UI? ZenUI has been revamped with a new look and it is SLICK. To go along with the red trim of the Special Edition, unique icons, wallpaper, and notification menu was created to complete the package. Each icon is outlined in red against a 3D-looking black disk and the application folders mimic the style

Performance? like the original, this Special Edition inherits the Dual-SIMs, 4GBs of RAM and the Intel® Atom™ Z3580 processor

ASUS Zenfone 2 Deluxe Special Edition Specifications
OS Android Lollipop 5.0
Processor Intel® Atom™ Quad Core Z3580 (2.3GHz), Power VR G6430, with OpenGL 3.0 support
Storage 128GB with Micro SD Card slot support up to 64GB
RAM LPDDR3 4GB RAM
Display 1080×1920 FHD IPS (403 ppi) with Gorilla Glass 3
Battery 3,000 mAh, non-removable battery
Camera 13MP Camera f/2.0 aperature, dual-flash LED
5MP front-facing, wide-angle camera with f/2.0 aperature
Connectivity 802.11ac, BT 4.0
Cellular and Wireless Bands GSM/EDGE: 850, 900,1700/2100, 1900, 2100 MHz
WCDMA: Band 1/2/4/5/8
FDD-LTE: 1/2/3/4/5/7/8/17/20
Network Compatibility GSM Networks including AT&T,
T-Mobile and providers utilizing GSM networks such as Straight Talk,
MetroPCS, and Cricket Wireless
SIM Card Dual micro-SIM
– Primary SIM – 2G/3G/4G
– Secondary SIM – 2G
Price $399

[Full Firmware] Zenfone 2 ZE551ML V2.20.40.97

 

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 

Download only FOTA Files Here
 

ZENFONE 2 ZE551ML Z00A firmware: 
WW VERSION
Version WW-2.20.40.97 (WW) 
 

Description Release Note
ASUS ZenFone 2=ZE551ML(Z00AD/Z00ADA/Z00ADB/Z00ADC) software Image: V2.20.40.97 for WW SKU only*
Improvement Item:

1. Fix Power and Boost duplicated icon issue
2. Fix System UI randomly crash issue when in Turkish language

For more information please refer to:
TW:http://www.asus.com/zentalk/tw/ReleaseNotes
WW:http://www.asus.com/zentalk/ReleaseNotes
CN:http://zentalk.asus.com.cn/ReleaseNotes

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 Size 1.1 GB                                                                             2015.09.23  update
Download from Global

[ROM][Android 6.0] CyanogenMod 13.0 For ASUS Zenfone 2


CyanogenMod 13 will be the next version of the world’s most popular custom ROM for Android, and based on Android version 6.0 Marshmallow. Couple days ago XDA Senior member jrior001 succeed to build CyanogenMod 13 for ASUS Zenfone 2. The ROM is Boot-able but still in alpha stage with several bugs and maybe cause random problems but it’s a huge steps to further development

How to Install CyanogenMod 13 on ASUS Zenfone 2:

  1. You need Unlock Bootloader your device (Tutorial)
  2. Make sure you have installed custom recovery (Tutorial)
  3. Perform a NANDroid backup of your current ROM (Optional)
  4. Wipe data & cache partitions of your device (required when coming from stock!)
  5. Flash CyanogenMod ROM Download->(Zenfone 2 Z00A | Zenfone 2 Z008)
  6. Optional: Install the Google Apps addon package (Download) choose x86 gapps

Known Issues

  1. RIL is a sloppy mess. Data will likely not connect at first boot and will need manual setup after boot.
  2. dialer shows an ugly screen on incoming calls
  3. Miracast displays are broken
  4. package manager sometimes installs x86 libs when it needs arm libs (causes some apps to not work at all)
  5. selinux enforcing mode
  6. sim 2 cannot be disabled
  7. sim 2 audio quality issues when also on a call on sim 1 (unconfirmed)
  8. sim 2 ends up disabled after airplane mode and potentially (unconfirmed) after extended periods without cell service.
  9. USB UMS (Mass Storage) – Killed off for now, MTP works just fine

Source: XDA


[ROM][5.1.1] BlissPop 4.0.3 for ASUS Zenfone 2 by Team Bliss

BlissPOP for ASUS Zenfone 2
[Official][5.1.1] BlissPop 4.0.3 for ASUS Zenfone 2 by Team Bliss

Credit to BlissROM original post: XDA | BitOBSessiOn

Team Bliss is pleased to present to you BlissPop Rom! BlissPop is one of the most highly customization-able roms that you can install on your mobile device, and we hope you have a truly blissful experience. A huge thanks to CyanogenMod for the source and all the work and dedication their team puts in to keep us updated. BlissPop is CM12.1 based, with some features added in from various roms, and we will continue to update features as they become available.

Download BlissPop:

  • ASUS Zenfone 2 Z00A/ZE551ML (Download)
  • ASUS Zenfone 2 Z008/ZE550ML (Download

Download Gapps:

Installation Instructions:

Installing BlissPop 4.0.3 for ASUS Zenfone 2:
– Make sure you are rooted.
– Make sure you’re running a proper working custom recovery (TWRP tutorial here)
Download and Copy Gapps and BlissPop ROM to your SDCard
– Boot into Recovery
– Perform a FULL factory wipe and wipe/system and dalvik cache as a precaution
– Flash BlissPop 
– Flash Gapps zip from SDCard
– Reboot, First boot may take up to 10 minutes

Features:

CM12 Theme Engine
Status Bar
-Clock & Date Options
-Battery Options
-Battery Bar Options
-SuperUser Indicator
-Bluetooth Indicator
-Brightness Control
-Mobile & Wifi Icon Options
-Notification & System Icon Options
-Network Traffic Monitor
-Breathing Notifications
-Bliss Logo Option
-Notification Count

Navigation & Button Options
-Set Navigation Ring Targets
-Backlight Brightness & Timeout
-Overflow Button Settings
-Navigation Bar Toggle
-Set Navigation Buttons, Layout & Dimension
-Double Tap to Sleep
-Power Button End Call Option
-Home Button Options
-Back Button Wake Up Option
-Menu Button Options
-Search Button Options
-Left-Handed Mode

Recents Options
-Memory Bar
-Clear All Button Tweaks
-Clear All tasks
-Clear All Recents Location
-Option to show Google search bar in recents Menu
-OmniSwitch (Option to replace recents menu with Omniswitch)

Notification Drawer
-Status Bar Header (Weather)
-Tile Options
-Flashlight Option
-Custom Color Tile Options (Set Background, Icons & Text)
-Quick Setting Options
-Quick & Smart Pulldown
-Brightness Slider Toggle
-Vibrate, Detailed Wifi View & Advanced Location Options
-SlimActions Tile
-Auto Close Panel
-Force Expanded Notifications

Heads Up Notifications
Lockscreen Options
-Long Press Lock Icon to Sleep
-Shortcuts
-Bottom Corner Targets
-Weather Options
-Customize Text & Icon Colors
-Clock Widget Settings
-Music Visualizer Options
-Power Button Lock Options
-Lock Method Options

Power Menu Options
-Power Off
-Reboot
-One Click Reboot
-Screenshot (with delay option)
-Screen Record
-Profile Switcher
-Airplane Mode
-User Switcher
-Settings Shortcut
-Device Lockdown
-Sound Panel

Gesture Anywhere
-Location Options
-Trigger Regions

Animations
-IME Animations
-Toast Animations
-Listview Animations
-System Animations
-Scrolling Cache
-Scrolling Modifiers

App Circle Bar
-Included Apps
-Trigger width, position and height

Sound Options
-Link Ringtone & Notification Toggle
-Media, Alarm, Ring & Notification Sound Options
-Volume Steps
-Volume Panel Timeout
-Interruptions
-Launch Music Apps
-Dial Pad Tones
-Screen Locking Sound
-Touch Sounds
-Charging Sounds
-Camera Shutter & Screenshot Sounds
-Safe Headset Volume
-Less Frequent Notifications
-Media Control
-Vibration Options

Display & Light Options
-Smart Cover
-Adaptive Brightness
-LiveDisplay
-Rotation
-Double Tap to Sleep
-Sleep Time
-Wake on Plug
-Cast Screen
-Expanded Desktop
-Daydream
-Font Size
-DPI
-Battery Light
-Notification Light with Per App Settings

Notification Manager
-Device Lock Options
-Block App Notifications
-Disable Persistent Info
-Priority App Notifications

More Stuff Included
Bliss Download Section
-All current downloads for your convenience

AudioFX Equalizer
-SuperSU – Huge thanks to @Chainfire
-BlissPop Wallpapers (via launcher’s Wallpapers)
-Home Launcher Option
-CM Camera
-User Profiles
-System Profiles
-Location Options
-Security Options
-Privacy Options
-Accounts & Sync
-Language & Input
-Backup & Reset
-Date & Time
-Accessibility
-Printing
-Developer Options
-Rom & Hardware Information
-Changelog
-Bliss OTA Updates

–Many other settings throughout the rom. Take some time to familiarize yourself with all the blissful options!


Screenshoots:




[ROM] Echoe Zen ROM for ASUS Zenfone 2


Today ZenfoneBlog will share about Echoe Zen ROM v1. This ROM is developed by Friedrich420  at EchoeROM website Here. About Echoe Roms were released for the first time on July 21st 2013. Since then, flashaholics from around the world have adored the idea that Echoe stands for. Echoe has become a trademark of customization of the Samsung Flagship Android Phones. Since then, things have changed a lot and besides perhaps the most choice-packed roms, echoe has began offering an incredible collection of its own AEL Kernels. None of this would have been possible without the thousands of dedicated Echoe Fans and of course without all those beautiful people below who have been part of the Echoe Family at one point or another.

DWYOR

Features :

  • This ROM is based on the newest Official Asus Android 5.0 firmware: 2.20.40.160
  • Fully deodexed rom
  • Xposed ready
  • Pre- rooted with SuperSU v2.52
  • Stericson busybox 1.24.1
  • Modded SystemUI with the following options: 
  • 3Minit Battery, 
  • Center Clock, 
  • Potato Gradient Mod (please use the app “Gradient” to control the colors and transparency of your status bar)
  • Enabled the amazing Net Traffic Meter Mod (go to settings/ display and its the last option)
  • Unlocked more options in the volume panel (i.e. media volume bluetooth volume, etc)
  • Re- added the sound/volume bar back to the Power Menu
  • Modded Settings with the “Echoe Customization Center’ for quick access to useful tools
  • Removed the ANNOYING“External Storage Inserted” message you get on every reboot
  • Moderately Debloated (there’s a LOT of crapps in this system)
  • Lots of fixes to the stock base (i.e. writing to external card, etc)
  • Viper4Android
  • Adaway
  • Faster GPS
  • CPU Spy
  • Simple Reboot
  • Speed and Battery tweaks

Screenshoots:

Installation Instructions:

  1. Download The ROM : HERE
  2. You need a custom recovery (twrp works just fine) – TWRP Tutorial Here
  3. No need to be rooted before flashing this (you will be rooted by the rom)
  4. Go to Recovery
  5. Flash the rom
  6. Please give it 5-7 minutes to go through the flashing process
  7. Reboot, wait a few minutes and enjoy

Credit to Friedrich420  at EchoeROM


[Full Firmware] Zenfone 2 ZE551ML V2.20.40.156

 

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 

Download only FOTA Files Here
 


ZENFONE 2 ZE551ML Z00A firmware: 
WW VERSION
Version V2.20.40.156 (WW)
 

Description Release Note
ASUS ZenFone 2=ZE551ML(Z00AD/Z00ADA/Z00ADB/Z00ADC) software Image: V2.20.40.156 for WW SKU only*
Improvement Item:

1)Several Apps update
2)Fix icon display issue in Settings
3)Improve the stability of Snap View
4)Improve the stability of Lockscreen
5)Improve the stability of Camera 
6)Fixed WiFi Hotspot issue
7)Fixed Data transmission issue
8)Fixed Bluetooth transmission issue
9)Fixed SD card related issue
10)Extend the shutdown mimunes by power key press
11)Improve the compatibility of apps
12)Fixed calling issue in Singapore
13)Fixed 3G cannot camp to H plus in some countries
14)Support Zawgyi Myanmar string translation
15)Move Screenshot settings to the first layer
16)Allow Clean Master S key to be uninstalled
17)Improve ringtone chooser stability
18)Improve the stability of Email App
19)Modify Italy PosteMobile MMS APN setting issue

New add:

1)Add Game Center
2)Add new wallpaper
3)Add Theme Store

For more information please refer to:
TW:http://www.asus.com/zentalk/tw/ReleaseNotes
WW:http://www.asus.com/zentalk/ReleaseNotes
CN:http://zentalk.asus.com.cn/ReleaseNotes

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 Size 1.13GB                                                                2015.12.24 update
Download from Global


[Full Firmware] Zenfone 2 ZE550ML V2.20.40.136

 

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 

Download only FOTA Files Here
 


ZENFONE 2 ZE550ML Z008 firmware: 
WW VERSION
Version WW-2.20.40.136  (WW) 
 

Description Release Note
ASUS ZenFone 2=ZE550ML (Z008B/Z008C/Z008D) software Image: 2.20.40.136 for WW SKU only*
Improvement Item:

Update ASUS ZenUI Launcher App

For more information please refer to:
TW:http://www.asus.com/zentalk/tw/ReleaseNotes
WW:http://www.asus.com/zentalk/ReleaseNotes
CN:http://zentalk.asus.com.cn/ReleaseNotes

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 Size 1.13 GB                                                2015.01.07  update
Download from Global

[Full Firmware] Zenfone 2 ZE551ML V2.20.40.160

 

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 

Download only FOTA Files Here
 


ZENFONE 2 ZE551ML Z00A firmware: 
WW VERSION
Version V2.20.40.160 (WW)
 

Description Release Note
ASUS ZenFone 2=ZE551ML(Z00AD/Z00ADA/Z00ADB/Z00ADC) software Image: 2.20.40.160 for WW SKU only*
Improvement Item:

Update ASUS ZenUI Launcher App

For more information please refer to:
TW:http://www.asus.com/zentalk/tw/ReleaseNotes
WW:http://www.asus.com/zentalk/ReleaseNotes
CN:http://zentalk.asus.com.cn/ReleaseNotes

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 Size 1.13GB                                                                2015.12.31 update
Download from Global


[Full Firmware] Zenfone 2 ZE550ML V2.20.40.92

 

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 

Download only FOTA Files Here
 

ZENFONE 2 ZE550ML Z008 firmware: 
WW VERSION
Version WW-2.20.40.92  (WW) 
 

Description Release Note
ASUS ZenFone 2=ZE550ML (Z008B/Z008C/Z008D) software Image: V2.20.40.92 for WW SKU only*
Improvement Item:

1. Fix Power and Boost duplicated icon issue
2. Fix System UI randomly crash issue when in Turkish language

For more information please refer to:
TW:http://www.asus.com/zentalk/tw/ReleaseNotes
WW:http://www.asus.com/zentalk/ReleaseNotes
CN:http://zentalk.asus.com.cn/ReleaseNotes

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 Size 1.1 GB                                                                             2015.09.23  update
Download from Global

How to Downgrade ASUS ZenFone 2 Firmware

Yesterday ASUS gave us recent update in ZenFone 2 ZE551ML 2.20.40.156 and ZenFone 2 ZE550ML 2.20.40.135. Personally I don’t like this update because Now I can’t use third party Themes, which you must download from Theme Store for free/paid themes from …


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 Name Device Code
Asus Zenfone 2 FHD ZE551ML
Asus Zenfone 2 HD ZE550ML
Asus Zenfone Selfie ZD551KL
Asus Zenfone 2 Laser 5.5″ ZE550KL
Asus Zenfone 2 Laser 5″ 3G ZE500KG
Asus Zenfone 2 Laser 5″ LTE ZE500KL
Asus Zenfone 2 Laser 6″ ZE601KL
Asus Zenfone 2 Laser 6″ ZE600KL
Asus Zenfone 2 Deluxe/Special Edition ZE551ML
Asus Padfone S PF500KL

[ROM][OFFICIAL] TeamEOS for ASUS Zenfone 2

[Official][5.1.1] TeamEOS for ASUS Zenfone 2Credit to Niropa original post: XDA | NiropaThe EOS project originated with the AOSP release of ICS, and was originally founded by Solarnz and co founded by Bigrushdog. Since then, EOS has evolved into a mult…


[Full Firmware] Zenfone 2 ZE551ML V2.20.40.150

 

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 

Download only FOTA Files Here
 

ZENFONE 2 ZE551ML Z00A firmware: 
CN VERSION
Version V2.20.40.150  (CN) 
 

Description Release Note
ASUS ZenFone 2=ZE551ML(Z00AD/Z00ADA/Z00ADB/Z00ADC) software Image: V2.20.40.150 for CN SKU only*
Improvement Item:

1.Several Apps update
2.Fix icon display issue in Settings
3.Improve the stability of Snap View
4.Improve the stability of Lockscreen
5.Improve the stability of Camera 
6.Fixed WiFi Hotspot issue
7.Fixed Data transmission issue
8.Fixed Bluetooth transmission issue
9.Fixed SD card related issue
10.Extend the shutdown mimunes by power key press.
11.Improve the compatibility of apps

For more information please refer to:
TW:http://www.asus.com/zentalk/tw/ReleaseNotes
WW:http://www.asus.com/zentalk/ReleaseNotes
CN:http://zentalk.asus.com.cn/ReleaseNotes

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 Size 1.03GB                                                                             2015.12.17 update
Download from Global

WW/TW soon


Official ASUS Zenfone 2 Unlock Bootloader Tool

Unlocking your bootloader allows you to put custom software onto your device. Many developers have created custom ROMs and have had to hack their way into the ZenFone 2 to make this available to powerusers in the community.

Now, unlocking the bootloader is as easy as downloading the utility, installing it, and running it.

ZE551ML

Version 1.0
 

Description Unlock Device App: Unlock boot loader 

Notice: 
1. Update your software image to V2.20.40.59 or latest version 
2. Before you download, install, and use the Unlock Device App you acknowledge and assume complete risk to the quality and performance of this App, including but not limited to the following: once you activate the App you will not be able to recover your ASUS product (“Original Product”) back to original locked conditions; the Original Product with the activated App will not be deemed the Original Product; the Revised Product will no longer be covered under the warranty of the Original Product; the software of Revised Product will no longer be deemed the software of the Original Product and can no longer receive ASUS software updates; your purchased digital content may also be affected.  You also acknowledge ASUS does not guarantee service satisfaction to any Revised Product, including events involving paid service requested by you to be performed to the Revised Product. Furthermore, such repaired Revised Product will not be covered under the warranty of the Original Product; the software of the repaired Revised Product will not be deemed the software of the Original Product and will not receive ASUS software updates. It is strongly advised that you avoid activating this App unless you fully understand and accept the risks that may arise.
File Size 734.6 KB 
Download from Global


ZE550ML

Version 1.0
 

Description Unlock Device App: Unlock boot loader 

Notice: 
1. Update your software image to V2.20.40.59 or latest version 
2. Before you download, install, and use the Unlock Device App you acknowledge and assume complete risk to the quality and performance of this App, including but not limited to the following: once you activate the App you will not be able to recover your ASUS product (“Original Product”) back to original locked conditions; the Original Product with the activated App will not be deemed the Original Product; the Revised Product will no longer be covered under the warranty of the Original Product; the software of Revised Product will no longer be deemed the software of the Original Product and can no longer receive ASUS software updates; your purchased digital content may also be affected.  You also acknowledge ASUS does not guarantee service satisfaction to any Revised Product, including events involving paid service requested by you to be performed to the Revised Product. Furthermore, such repaired Revised Product will not be covered under the warranty of the Original Product; the software of the repaired Revised Product will not be deemed the software of the Original Product and will not receive ASUS software updates. It is strongly advised that you avoid activating this App unless you fully understand and accept the risks that may arise.
File Size 734.6 KB 
Download from Global


[ROM][Full Firmware] ASUS ZenFone 2 ZE551ML Marshmallow WW-4.21.40.223


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: 

WW VERSION
WW-4.21.40.223

Description
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 Size 1.18 GB                                                2017.01.10  update
Download from Global


How to Re-Lock Bootloader ASUS Zenfone 2

The trouble after unlock bootloader : Furthermore, such repaired Revised Product will not be covered under the warranty of the Original Product; the software of the repaired Revised Product will not be deemed the software of the Original Product and wi…