PadFone2 Firmware: V10.4.17.7 Only for WWE SKU (Android 4.1)
Improvement：
1.Applied the Android security patch provided by Google
2.Improved the camera’s firmware and optimized the AWB (automatic white balance) function
3.Improved the input keyboard’s interface and upgraded the vocabulary database
4.Improved the performance and stability of the applications
5.New BuddyBuzz and FloatingApp version
6.Fixed bugs from users’ feedback

Steps of Update:

1. Check SW version of your PadFone2*
2. Download PadFone Firmware: V10.4.17.7 Only for WWE SKU and Update version of SOP (From “Manual” Item)

※Firmware update cannot do *SKU conversion* and downgrade version.
Wrong SKU may cause update failure, You can only update your SW version on the Same SKU
*How to check SW version of your PadFone2?
Path: [Settings]–>[About PadFone]–>Build number
Example: You should be able to see the build number CHT_PadFone-9.X.X.X, where “CHT” means SKU.
http://www.asus.com/th/Tablets_Mobile/PadFone2/#support_Download_32