After Upgrade to 4.4.2 There is a new application that support transfer data from our old smartphone to zenfone.
Data Transfer application enables phones to wirelessly reach out and import phone-supported content such as contacts, calendar entries, website bookmarks, pictures, SMS and more over a Bluetooth connection between phones. Transferred files are seamlessly merged with the content on the receiving device.
And best of all: the Data Transfer application is not required to be installed on the source phone for Bluetooth transfer.
FutureDial's patent-pending technology powering Data Transfer supports numerous different handset models. Designed to run on Android, iOS, Windows Mobile, and Blackberry platforms, the Data Transfer application is fully customizable to meet specific requirements of handset manufacturers, wireless carriers or enterprise customers. Data Transfer can also extract content from feature phones.