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Download Asus Zenfone 6 Stock ROM / stock firmware

Download Asus Zenfone 6 Stock ROM

SKU Version Update Date Size Download
 TW  V2.20.40.8(TW)  2014.10.29  741MB  Click here to download Zenfone 6 Stock rom
TW  V1.18.40.12(TW)   “  693 MB  Click here to Download Zenfone 6 Stock rom
WW  V2.20.40.11(WW)  2014.11.12  727 MB  Click here to Download Zenfone 6 WW Update
WW  V2.19.40.18(WW)  “  729 MB  Click here To Download Zenfone 6 stock rom
CN  V2.20.40.8(CN) 2014.11.03  650 MB  Click here to Download Zenfone 6 Update

For TW SKU only
Latest Update For Zenfone 6 TW SKU
Version  V2.20.40.8(TW)


Older version


For WW SKU only
Latest Update
Version  V2.20.40.11(WW) 

This includes
improvement Item:

1.Fixed the reddish issue of front camera
2.Fixed create new interface get NULL value
3.Fixed hookey not hold on when SIM2’s phone call.
4.Fixed – APK files can’t be send via Bluetooth
5.Enable SD card OTA update on recovery mode
6.Fixed Line will crash when switch the front/rear camera
7.Fixed – Audio playback on Bluetooth headsets (A2DP) is too 
8.Fixed maxxaudio effect is stopped when turning on google 
9.Fixed – FM radio reception breaks after 15 minutes
10.Fix Cloud Print version update issue
11.Fix USSD issue which randomly fails to be executed correctly 
when using Secondary SIM
12. Fix APN lost when update to KK
13. Add info URL for ASUS Updates
14. Add ASUS Feedback APP
Older version

For CN SKU only
Latest Update 
Version V2.20.40.8(CN)

Older Version

  • Android Version 4.4
  • Firmware updated to Version  V1.18.40.11                      
  • Download size 663 MB
*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.
Steps of Update:
1. Check software version of your device**
2. Download device software and Update SOP (From “Manual”
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.
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