hi all so i ordered two iPhones 5 we were both eligible for upgrade one 32 black on my line and a 32 white on my brothers line but I would like the white phone and he wants the black we are on the same plan how would i go about switching this phones? and the reason why we didn't do it right in the beginning is he needs a phone he is at school and doesn't have one right now and i wanted to make sure we got his phone so i choose to upgrade my line from the app store.. and i as able to go online after and ordered the white one with his line. will this be as easy as switching nano sims and activating via iTunes? or will i need to call at&t thank you in advance.