1 Reply Latest reply: Aug 3, 2011 7:42 PM by Meg St._Clair
Aarion Level 1 (0 points)

I understand that sometime before 2010, it would be understandable that, well, only AT&T Sim Cards would work with an iPhone. However, I heard AT&T bought T-Mobile. So, why doesn't a T-Mobile Sim Card work with an iPhone?

iPhone 3GS