How to Flash Asus Zenfone 2

Preparing tools :

1. Intel USB Driver for Android ( Download Here )
2. ADB Fastboot Tool (Download Here)
3. Asus Zenfone 2 Firmware (Download Here / Here)

Steps:

1. Turn off your zenfone 2
2. Go to recovery mode (Tutorial Here)
3. Select apply update from ADB 
4. Connect your Zenfone 2 with USB Cable to your PC/laptop
5. Open command prompt in Windows (in the same folder where ADB is located)
6. Check connection by type adb devices if connection successful will be a list of zenfone 2 device
7. Type adb sideload file.zip (file.zip=adjust the filename, asus zenfone firmware that you download earlier)
8. Wait until the process is complete
9. Zenfone 2 will flash to clean thoroughly

Method 2

1. Copy Zenfone 2 Firmware to SD Card
2. Go to recovery mode (Tutorial Here)
3. Select Update via SDCard
4. Select Firmware

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Zenfone Full Firmware [Fix Occasional Power Drained Issue] V2.19.40.18

 

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 

Download only OTA Files Here

ZENFONE 5  firmware: 
WW VERSION
Version V2.19.40.18(WW)

Description

ASUS ZenFone 5(T00F/T00J) software Image: V.2.19.40.18 for WW SKU only* Improvement Item: fix occasional power drained issueSteps 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

ZENFONE 6  firmware: 
WW VERSION
Version V2.19.40.18(WW)

Description

ASUS ZenFone 6(T00G) software Image: V.2.19.40.18 for WW SKU only* Improvement Item: fix occasional power drained issueSteps 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

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Asus Flashtool Installer for Zenfone

AsusFlashTool 1.0.0.0

Asus Flash Tool 1.0.0.7

Download RAW Firmware Here

1. Open the ASUS Flash Tool, AFT will automatically detect mobile devices (if not automatically detect, please re-plug the USB cable)
   
   
   
   
2. Step 2:
   
1), automatically detect the serial number (for example: DCATCY141082), State representatives connection status bar turns blue. Not connected display. Detected inconsistent with the actual SN possible, but does not affect the refresh firmware.

2), manually select the correct model, there is no drop-down menu, and on behalf of AFT is not supported; model forget if elected, you will be prompted
3), select whether empty user data, Yes on behalf empty, No representative of any default No, please choose according to the actual situation.

4), click on the box icon, select the path to the firmware raw file.

5), click again, you need to update the machine, serial number, and blue State status bar.

6), the start point Start icon to start the firmware update.
3.  flash process, the phone will appear black, is a normal, over a period of time will automatically display
   
4.  Success, Asus Flash Tool will show below, the system will automatically reboot into the phone.
   
   Note: Sometimes brushing, the phone is turned off black state, press the power button to boot to see whether the boot.
   
   entire process takes about 6.5 minutes
   

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