How to Downgrade ASUS Zenfone 4 A400CG from Lollipop 5.0 to Kitkat 4.4

Today ASUS Zenfone Blog will show you How to Downgrade ASUS Zenfone 4 A400CG From Lollipop to KitKat.

Downgrade Step (From L to KK)

1. Download the downgrade tool: UL-ASUS_T00I-WW-9.9.9.0-user.zip
2. Using MTP connecting A400L with PC. (Enable MTP: Setting-->Storage-->press the USB icon on right corner--> Enable MTP)
3. Copy the tool (V9.9.9.0) to the A400CG internal storage.
4. Remove the USB cable, the device will pops up the system upgrade information.
5. After downgraded, device will auto reboot and perform factory reset.
6. After finished, please go to Settings->About-> software information->Build number. The version should be V6.6.3

ZENFONE 4 Downgrade Version
WW VERSION

Description

ASUS ZenFone 4(A400CG) downgrade SOP (Downgrade from L to KK), V9.9.9.0 Only for WW SKU* Notice: 1. Only apply to same SKU update, Example: WW->WW, CN->CN, TW->TW. 2. Software update cannot transfer the software SKU and downgrade the software version. 3. Downgrade image will only revert back to latest KK version 4. After OTA downgrade, device will perform factory reset automatically.then reboot automatically to complete upgrade process 5. System upgrade may cause part of data missing, please buckup your important data before system upgrade

File Size	825 MBytes                                                                              2015/05/29
Download from	Global

ZENFONE 4 Downgrade Version
CHT VERSION

Description

ASUS ZenFone 4(A400CG) downgrade SOP (Downgrade from L to KK), V9.9.9.0 Only for CHT SKU* Notice: 1. Only apply to same SKU update, Example: WW->WW, CN->CN, TW->TW. 2. Software update cannot transfer the software SKU and downgrade the software version. 3. Downgrade image will only revert back to latest KK version 4. After OTA downgrade, device will perform factory reset automatically.then reboot automatically to complete upgrade process 5. System upgrade may cause part of data missing, please buckup your important data before system upgrade

File Size	866 MBytes                                                                              2015/05/26
Download from	Global

TW available Soon

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Android L Release Delayed Due To Zenfone Verification Process Problem

Sad news for ASUS Zenfone 4, Zenfone 5, Zenfone 6, and Padfone S user. Today ASUS via Zentalk Super Moderator announced that ASUS will postpone Android L upgrade because verification process problem. Zenfone 1st Generation scheduled to get Android 5.0 L in Mid May, but with this announcement they will rearrange Android L upgrade schedule. This is the original post:

Android L升級延遲公告謝謝各位用戶長期以來的支持，原訂於５月中提供ZenFone4、ZenFone5、ZenFone6、PadFoneS等機型升級至Android L系統，由於團隊在驗證過程中發現了一些問題，為了避免升級之後影響相關使用經驗，因此決定將Android L延期釋出，技術人員會加緊進行問題之修復, 完成後將盡早釋出。

另外，The New Padfone Infinity (A86) 因處理器原廠不支援此款手機所採用的CPU 升級至Android L系統，因此我們將停止升級Android L之計劃；未來華碩仍會基於Android 4.4版提供此機型之軟體更新。

特此公告並請見諒。

English Translation:

Android L upgrade delay announcement

Thank you for your continued support users, originally scheduled for mid-May to provide ZenFone4, ZenFone5, ZenFone6, PadFoneS other models upgrade to Android L system, because the team found some problems in the google verification process, in order to avoid the impact of relevant experience after upgrade , it was decided to postpone the release of Android L technician to fix the problem will intensify, release as soon as possible after completion.  In addition, The New Padfone Infinity (A86) because the original processor does not support CPU used in this phone to upgrade to Android L system, we will stop the planned upgrade Android L; future Asus Android version 4.4 will continue to provide on this machine type of software update.  Notice is hereby given, and please forgive me.

Source 

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Asus Zenfone 4 5 6 RAW Firmware for ASUS Flashtool

Asus Flashtool Interface

Today, Asus Zenfone Blog will share RAW firmware (all WW) for Zenfone Series. With this RAW Firmware you can Flash your Zenfone 4/Zenfone 5/Zenfone 6 With AFT (Asus Flash Tool).

If  You Reupload these links please let me know by comment box so i can add some mirror links if these links goes down/deleted. 

How to Use Asus Flash tool can you Read in This Post

NEW RAW LINKS ALL TYPE of zenfone is HERE

Asus Zenfone 4 .RAW

Mirror:

Another Link:

Mirror  1 (mediafire, thx to Tim en )

Asus Zenfone 5 .RAW

Another Link:

Mirror  1 (mediafire, thx to Tim en )

 

 

Asus Zenfone 6 .RAW

Another Link:

Mirror  1 (mediafire, thx to Tim en )

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Asus Zenfone 4 IMEI Recovery (Null IMEI)

Null Imei Problem on Zenfone | www.asus-zenfone.com

Null Imei Problem on Zenfone | www.asus-zenfone.com

Today I will post how to restore IMEI on Asus Zenfone 4. When your zenfone got null IMEI you can't call/text/data because your zenfone will not recognize simcard.

IMEI RECOVERY METHOD 1

1. First root your device
2. download and install terminal emulator
3. download this and copy it to internal sd card
4. open terminal emulator and type su
5. grant superuser access
6. type dd if=/sdcard/mmcblk0p3.img of=/dev/block/mmcblk0p3
7. and enter
8. after success restart ur phone and pray.

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Asus Zenfone 4 A400CG Philz Touch Recovery CWM

Philz Touch Recovery for Zenfone 4

ClockworkMod - also known under the name of Clockwork and CWM - 1 mini operating system for phones and tablets running Android . It allows you to intervene in the deep system to restore, install or modify the components that can not be done within the Android operating system is used. Even after allowing ASUS Bootloader Unlock Zenfone 4, so far they have Built and tested successfully on CWM Philz Zenfone CWM 4. 

1. First, Bootloader Unlock your zenfone, click here
2. Unpack, install and launch the app - Read over or pulled down to the bottom and volume terms Agree, do one again and click on the lock to start unlocking.
3. Download philz touch recovery here
4. Install And select Install Philz Touch Recovery and reboot, at first ASUS screen ( no circular motion) you hold Volume Volume + or - are able to recover 

DWYOR
Source: xda

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[Full Firmware] Zenfone 4 A400CG WW v6.5.35 and CHT v6.5.32

How to OTA update ? (Go to settings>About>System Update>Check for Update)
How to update Manual ? Here

ZENFONE 4  firmware: 
WW VERSION
Version V6.5.35(WW)

Description

ASUS ZenFone4(T00I) software Image: V6.5.35 (Android 4.4) for WW only* Improvement: 1. Improved the accuracy of battery percentage display 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, TW->TW. 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	809.09 MBytes                                                                              2014/11/27
Download from	Global

ZENFONE 4  firmware: 
CHT VERSION
Version V6.5.32(CHT)

Description

ASUS ZenFone4(T00I) software Image: V6.5.32 (Android 4.4) for WW SKU only* Improvement: 1. Improved stability of Audio Wizard feature 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, TW->TW. 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	803.57 MBytes                                                                                   2014/11/07
Download from	Global

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Download Official Unlock Bootloader tool for Zenfone 4 A400CG

ZENFONE 4 A400CG Unlock Bootloader Tool
Version V1.0

Description

Unlock Device App:  Unlock boot loader Notice:  1. Update your software image to Android 4.4  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	360,27 KBytes                                                                            update 2014/11/27
Download from	Global

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How to Un-Brick Zenfone 4 A400CG

If you can't enter Recovery at USB mode, you can try this Method:

Zenfone Brick USB Mode

Resources to Download:

1. Intel USB Driver (Download HERE)
2. Asus USB Driver (Download HERE) 
3. iSocUSB-Driver-Setup-1.0.4.exe (Download HERE)
4. xfstk-downloader-setup-1.5.1.exe (Download HERE)
5. IntelAndroidDrvSetup1.5.0.exe (Download HERE)
6. ADB Fastboot (Flashtool.zip) (Download HERE)
7. FW DnX, IFWI, OS DnX, OS Image files (Download For Zenfone 4 )
8. Update Splashscreen.bat (Download HERE)
9. Download Zenfone 4 RAW Firmware ( JellyBean , KitKat) 

Instructions:

1. Download All Resources above and Place it to one Folder, and Install Intel USB Driver& ASUS Zenfone USB Driver.
2. The first step is to install iSocUSB-Driver-Setup-1.0.4.exe, when your phone is on USB pattern appears when connected to the computer should be two new devices, both at Intel Soc classification: CloverviewPlus Device and Intel Soc USB Driver.

   

   unbrick-zenfone-device manager

3.  The second step is to install xfstk-downloader-setup-1.5.1.exe and switch to the CLVP A0/B0/B1 Tab, and Make sure Device status column which shows the Scanning: CLOVERVIEWPLUS TARGETS DETECTED: 1, if the final surface is displayed as 0, check again Device Manager and make sure Zenfone is detected.
   

    

   xfstk-downloader zenfone

   Detected Device: 

   

   CLOVERVIEWPLUS TARGETS DETECTED: 1

4. The next thing is very simple, sequentially select FW DnX, IFWI, OS DnX, OS Image files that you have downloaded earlier.and Click Begin Download, then USB pattern on the phone will have a progress bar display (red) 

   

   Unbrick Zenfone xSTFK Downloader Progress

5. Upon completion of the phone will automatically reboot
6. Flash RAW Firmware via Droidboot if Necessary (Tutorial Here)

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How to Fix Bootloop on Zenfone 4 A400CG

Today I will share some methods How to Fix Bootloop on Zenfone 4. Bootloop means your phone doesn't boot up right, it's just starting and starting and nothing happens, or it's starting and shutting down and starting again. It just means your phone makes a loop while booting

Method 1

First Method you can enter Safe Mode if it's possible. But you must know the cause of bootloop, for example My Zenfone Bootloop because accidentally install bad apps/apk. This Method will not erase your data.

1. Turn Off Zenfone
2. Turn On Zenfone and When it Show Asus Logo Quickly Press Volume Down Until Enter Safe Mode
3. Fix the Problem by deleting the cause of Bootloop
4. Restart your Zenfone, and see your bootloop is fixed or not.

Detailed Instructions about Safe Mode can you see Here : http://www.asus-zenfone.com/2014/09/zenfone-how-to-enter-safe-mode.html

Method 2

Second Method Can be applied if your Zenfone 4 can enter droidboot. This Method will erase your data (data loss).

1. Turn Off Zenfone 4 and Remove the battery
2. Plug in the battery again.
3. Enter Droidboot mode by Pressing Volume up + Power

   

   Zenfone 4 Droidboot Mode - www.asus-zenfone.com

4. Choose "Factory Reset"
5. Reboot and See if your Bootloop has been resolved or not.

Method 3

The Third Method requires RAW firmware for Zenfone 4, and a Micro SD Installed on your Zenfone 4. This Method completely erase all of your data and root.

1. Download Raw Firmware for Zenfone 4 ( JellyBean , KitKat) 
2. Place RAW file inside SD Card
3. Turn Off Zenfone 4 and Enter Droidboot by pressing Volume up + Power Button
4. Choose "SD Download"
   
5. Wait Until Finish and Reboot

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How To DEODEX Stock ROM ASUS ZEFONE 4 (FULLY AUTOMATED)

Credit to www.facebook.com/akumarraheja

Now Deodex your Stock ROM with Ease.

 
Here Akhsay presents a automated tool for deodexing. just fulfill the requirements and leave everything on the script.

Requirements :

• Rooted device
• usb debuuging enabled
• and a PC with jdk and intel usb drivers installed.

Procedure :
1. FIRST ENABLE USB DEBUGGING ON YOUR PHONE.
2. NOW DOWNLOAD AND EXTRACT ATTATCHED ZIP ANYWHERE IN YOUR PC.
3. CONNECT YOUR DEVICE TO PC USING USB CABLE.
4. NAVIGATE
"ASUS_ZENFONE_4_A400CG_DEODEXER"
FOLDER AND OPEN "OPEN.BAT" FILE. AND
WAIT FOR THE DEODEXING TO COMPLETE.

REMEMBER : IT WILL TAKE 20-25 MINUTES IN
ALL TASKS. SO BE PATIENT

ATTATCHMENT: 

https://www.dropbox.com/s/zhobhwso8z07uwj/ASUS_ZENFONE_4_A400CG_DEODEXER.zip?dl=1

Tested By Akhsay . Akhsay deodexed his stock with this script only. so its 100% genuine and working.  if you have any queries, you can contact him on facebook - www.facebook.com/akumarraheja

Ask him on Zenfone Blog Forum : Here

DWYOR

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How to Create Flashable Zip for Zenfone 4 without custom recovery

This tutorial Credit to Heri Setiawan and Bang Ochiet
ASUS Zenfone 4 T00I Facebook Group
======================================================================== 
DWYOR

Resources: https://www.dropbox.com/s/yrzefrjrzjb8jbk/apk_manager_4.9.zip?dl=0 
Java JRE http://www.oracle.com/
Don't forget to Settings Java path


Tutorial How to Create Flashable zip
Download Resources first

1.  Extract zip and Open the Folder
2.  Extract Master_Flash.zip
3.  Move each apps to specified folder 
4.  Edit updater-script in this section: (apk_manager_4.9\META-INF\com\google\android)
  set_perm(0, 0, 0644, "/system/app/example.apk");
  Replace example.apk above with app that will be add to app folder
  for another app just add the same syntax

5.  If you want to add a framework folder, add the following code:
  set_perm (0, 0, 0644, "/system/framework/example.apk");
  Replace example.apk with app that will be add to framework folder
6.  Zip two Meta-Inf folder and System with 7zip (example.zip)
   
7.  Save the new zip made ​​earlier to the folder "place-apk-here-for-signing" 
   
8. Run Script.bat in the folder apk_manager_4.9
9. Select or type the number 16 (wait for it to finish)
10. Change back example.apk to example.zip
11. Flash Zip is finished 

To Run Flashable Zip

1. Move example.zip  to "update" folder
   
2. Shift+Right Click then Open Command here
3. Turn Off Zenfone and Go to Droidboot mode ( Volume up + Power button until droidboot)
4. Connect Zenfone with USB Cable
5. Type in the Command Window:
fastboot flash update example.zip

This tutorial Credit to Heri Setiawan and Bang Ochiet
ASUS Zenfone 4 T00I Facebook Group

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[Download] KitKat 4.4.2 Firmware/ROM Asus Zenfone 4 5 and 6

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

ZENFONE 5  firmware: 
WW VERSION
Version V2.19.40.6(WW)

Description

ASUS ZenFone 5(T00F/T00J) software Image: V2.19.40.6 for WW SKU only* Note: Please make sure update software version V1.18.40.10 first before update to software version V2.19.40.6 Improvement Item: 1. System update to Android 4.4 2. Improved Miracast compatibility 3. Added support for DLNA protocol 4. Fix Russian translation Key New functions: 1. Do Not Disturb mode 2. Call Guard(applies to models sold in China and Taiwan only) 3. Full dual standby with two SIM cards(applies to dual SIM models only) 4. Filter effects for videos 5. Reply via Call-in SIM card, system will auto select the right phone 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, TW->TW, CHT->CHT. 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 **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	707,49 MBytes update 2014/10/03
Download from	Global

TW VERSION
Version V2.19.40.6(TW)

Description

ASUS ZenFone 5(T00F/T00J) software Image: V2.19.40.6 for TW SKU only* Note: Please make sure update software version V1.18.40.10 first before update to software version V2.19.40.6 Improvement Item: 1. System update to Android 4.4 2. Improved Miracast compatibility 3. Added support for DLNA protocol 4. Fix Russian translation Key New functions: 1. Do Not Disturb mode 2. Call Guard(applies to models sold in China and Taiwan only) 3. Full dual standby with two SIM cards(applies to dual SIM models only) 4. Filter effects for videos 5. Reply via Call-in SIM card, system will auto select the right phone 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, TW->TW, CHT->CHT. 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 **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	741,02 MBytes update 2014/10/01
Download from	Global

CHT VERSION
Version V2.19.40.6(CHT)

Description

ASUS ZenFone 5(T00F/T00J) software Image: V2.19.40.6 for CHT SKU only* Improvement Item: 1. System update to Android 4.4 2. Improved Miracast compatibility 3. Added support for DLNA protocol 4. Fix Russian translation Key New functions: 1. Do Not Disturb mode 2. Call Guard(applies to models sold in China and Taiwan only) 3. Full dual standby with two SIM cards(applies to dual SIM models only) 4. Filter effects for videos 5. Reply via Call-in SIM card, system will auto select the right phone 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, TW->TW, CHT->CHT. 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 **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	741,02 MBytes update 2014/10/01
Download from	Global

WW Version 
FOTA files (Place to Internal Folder/via ADB Sideload) Manual OTA files (not full firmware) #Zenfone5 WW
1.18.40.9 to 1.18.40.10 : 20MB
http://fota.asus.com/delta_package/phone/WW_a500cg/formal/WW_user_1.18.40.9_20140827_0215-user-WW_a500cg-WW_user_1.18.40.10_20140903_9870-user-WW_a500cg-20140925_r/WW_500_0827_0903_20140925_r.zip

1.18.40.10 to 2.19.40.6 (Kitkat) : 442MB
http://fota.asus.com/delta_package/phone/WW_a500cg/formal/WW_user_1.18.40.10_20140903_9870-user-WW_a500cg-WW_user_2.19.40.6_20140927_8163-user-WW_a500cg-20140929/WW_500_0903_0927_20140929.zip

CN Version *soon

ZENFONE 4  firmware: 

 Version CHT_6.5.24(4.4)

Description

ASUS ZenFone4(T00I) software Image: V6.5.24 (Android 4.4) for CHT SKU only* Improvement Item:1.System upgrade to KitKat 4.4 2.Call Guard 3.Filter effects for videos 4.Reply via Call-in SIM card, system will auto select the right phone number via the call 5.Full dual standby with two SIM cards (applies to dual SIM models only) 6.Do Not Disturb modeSteps 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, TW->TW. 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	849,92 MBytes update 2014/10/01
Download from	Global

 VersionWW _6.5.27(4.4)

Description

ASUS ZenFone4(T00I) software Image: V6.5.27 (Android 4.4) for WW SKU only* Improvement Item:1.System upgrade to KitKat 4.4 2.Call Guard 3.Filter effects for videos 4.Reply via Call-in SIM card, system will auto select the right phone number via the call 5.Full dual standby with two SIM cards (applies to dual SIM models only) 6.Do Not Disturb modeSteps 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, TW->TW. 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	849,92 MBytes update 2014/10/03
Download from	Global

ZENFONE 6  firmware: 
WW VERSION
Version V2.19.40.15(WW)

Description

ASUS ZenFone 6(T00G) software Image: V2.19.40.15 for WW SKU only* Note: Please make sure update software version V1.18.40.10 first before update to software version V2.19.40.15 Improvement Item: 1. System update to Android 4.4 2. Improved Miracast compatibility 3. Added support for DLNA protocol 4. Fix Russian translation Key New functions: 1. Do Not Disturb mode 2. Call Guard(applies to models sold in China and Taiwan only) 3. Full dual standby with two SIM cards(applies to dual SIM models only) 4. Filter effects for videos 5. Reply via Call-in SIM card, system will auto select the right phone 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, TW->TW, CHT->CHT. 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 **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	711,87 MBytes update 2014/10/03
Download from	Global

TW VERSION
Version V2.19.40.13(TW)

Description

ASUS ZenFone 6(T00G) software Image: V2.19.40.13 for TW SKU only* Note: Please make sure update software version V1.18.40.10 first before update to software version V2.19.40.6 Improvement Item: 1. System update to Android 4.4 2. Improved Miracast compatibility 3. Added support for DLNA protocol 4. Fix Russian translation Key New functions: 1. Do Not Disturb mode 2. Call Guard(applies to models sold in China and Taiwan only) 3. Full dual standby with two SIM cards(applies to dual SIM models only) 4. Filter effects for videos 5. Reply via Call-in SIM card, system will auto select the right phone 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, TW->TW, CHT->CHT. 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 **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	741,02 MBytes update 2014/10/01
Download from	Global

WW Version
FOTA files (Place to Internal Folder/via ADB Sideload) Manual OTA files (not full firmware) #Zenfone6 WW
1.18.40.11 to 1.18.40.12 :
http://fota.asus.com/delta_package/phone/WW_a600cg/formal/WW_user_1.18.40.11_20140901_8156-user-WW_a600cg-WW_user_1.18.40.12_20140903_2744-user-WW_a600cg-20140925_r/WW_600_0901_0903_20140925_r.zip

1.18.40.12 to 2.19.40.15(kitkat):
http://fota.asus.com/delta_package/phone/WW_a600cg/formal/WW_user_1.18.40.12_20140903_2744-user-WW_a600cg-WW_user_2.19.40.15_20140927_4873-user-WW_a600cg-20140929/WW_600_0903_0927_20140929.zip

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