Hi! I sold an unlocked canadian iphone on ebay to an american and now he's messaging me saying iTunes is telling him it can't activate the phone. the phone was unopened when I mailed it and I didn't send the microsim it came with since its for canada. What exactly will this person be required to do to get the phone in working order, assuming he doesn't currently have any contract with at&t and presumably doesn't want one, but just wants to be able to use it abroad with whatever local provider? Looking around seems one of the solutions would be to find someone with a currently activated phone, pop in that persons sim, activate it, then give it back to them, is there any other way to go about this? thanks!