iTunes keeps telling me that I have a carrier settings update avalible.. Is it safe? AT&T I'm on 3.1.2(Origanaly 3.1.3) So I have the 5.12.01 baseband.. Should I update it or leave it? I might need an unlock in the future.. I'd like to keep that option open. And I can use FuzzyBand when that time comes. But about the update.. What do I do? Just keep ignoring it or what?