The Facebook tile was accidentally deleted from the Start screen. Is there a way to get it back? I succeeded in getting it back by pressing the Facebook button on the Apps list, but the result isn't quite the same as in the original—the restored Facebook tile on the start screen is now just the F on a blue background, while in the original tile all the images inside ( i.e the pics of my contacts) were "moving". Do I have to reset the phone? In that case, I think I would lose all data (phone numbers, messages), wouldn't I?
Are you referring to the people live title?
If so then:
You don't need to reset your phone.