A:AnswerYes, updates would come directly from Samsung. However, in some cases it might be slightly delayed ( compared, for example, to what is released by Google for Android OS)
A:AnswerYes, It works with T-Mobile prepay. Just put in the sim, It will reboot once and be all set up. Wi-Fi calling is spotty. I recommend turning it off.
A:AnswerThat's a great question, Ray! To clarify, this is an unlocked model which means it can be used with any US carrier's SIM card. You should definitely still be able to use T-Mobile as your carrier. Thanks for being a customer! ^Mel
A:AnswerI do not know if the phone CAN be shipped to Mexico. You may want to SHIP it yourself (to Mexico). Yes, this is an International phone as any GSM technology phone can be used all over the globe, including Europe and other countries. GSM stands for Global System for Mobile Communication, and unless you live in Russia, this is probably the technology your phone network (your provider/carrier) uses as this is the standard system for most of the world. GSM networks use TDMA, which stands for Time Division Multiple Access. TDMA works by assigning time slots to multiple conversation streams. SIM cards are one of the key features of GSM networks. Yes, this phone can be used to make and/or receive International calls. It can be used just about anywhere in the world, because of the GSM technology.
A:AnswerGet direct from Samsung with free gift and free delivery. Remember that when you buy Samsung unlocked phone you chance to get software upgrade for your Android operating system are.. slim. Samsung is the worst with upgrading theirs own unlocked phones. I'm still waiting to get upgrade for my unlocked S7 when all carriers branded S7 all ready run an latest Android 7 OS.