I'm having trouble, I updated my phone, it's an iPhone 4.. Being dumb. Knowing exactly what the outcome would be. Now I have baseband 4.12.01 and an upgrade of 5.1.1 instead of getting it fixed at the shop for $120. I was wondering if I just buy a Gevey Ultra S sim will it work? Or is the Ultra S sim just for iPhone 4s? I have a Gevey Ultra sim (not Ultra S) so it doesn't support the baseband I have. But I know the Ultra S supports my baseband.. But the question is, will it work for iPhone 4 too? Or just S?