When you login to facebook using their mobile application, you will see an option asking you to select among these choices. Sync all (Sync data about all friends to Contacts) - this would update and add contacts from your facebook friends contacts to your phone book contacts Sync with existing contacts (Sync data only about friends already in Contacts) - this would only update contacts from your facebook friends contacts to your phone book contacts Don't Sync (Use information about friends only in Facebook) - this won't do anything at all. After you have chosen your choice, tap the Sync button at the upper right corner.
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