If I bought an iPhone from sprint on amazon could I go into a sprint store and unlock it so I could use it on AT&T?
Why would you go to a sprint store if you want it on AT&T. Get help from AT&T. Because you are their customer they will be more likely to help you properly. I'm not sure sprint would even help you.
Think it won't work on AT&T since sprint uses CDMA while AT&T uses gsm.
I've heard that you can do that but they don't like to but have to if you insist. idk know sure