A:AnswerYes, this can work in Argentina as long as the carrier that you're going to use is one of the following: Verizon, AT&T, Sprint and T-Mobile. Also compatible with prepaid carriers including Cricket Wireless, Boost Mobile, MetroPCS, Simple Mobile, Total Wireless, Tracfone, Net10, Mint, and H2O.
A:AnswerI believe activation means you are activating your phone with 3 choice of carrier (sprint, att or verizon). The phone will still work if you bought it unlocked phone but activating outside US, However, best buy will charge you full price instead of discount price
A:AnswerYes you will since its a gsm phone but you will have to unlock the device first before taking it to a different carrier than what you have originally purchased for.
A:AnswerYou have to pick sprint network option phone on the selector when you buy it online. Otherwise, you can asked the guy in the store. They have 4 options att, Verizon, sprint and unlocked version.