Curious couple if questions about my 5S. My model number reads ME296C/A. Which is Canadian correct? When I google that model it states it's an unlocked version. However, when I pop a tmo sim in, it asks for validation proving it's locked. Can't unlock it from att since I'm still under contract. Just found it weird that this model number is for a Canadian 5S and not att. Do they sell these models here as well as Canada?