Chosen Solution
like going from at&t to verizon
Going from AT&T to Verizon is possible, however, if the phone was never on Verizon, Verizon will have to add the IMEI number to activate on their network. You MUST have a sim unlocked iPhone first. Starting from the iPhone 5s, all iPhones have the same hardware inside after unlocked. Going to Verizon is possible from ATT but going to sprint will not work. (They only use their own phones for the most part).
