A:AnswerBuy one and get one free is for a promotion for a locked version from AT&T and requires certain condition, a new line, an account with directtv etc..
A:AnswerNot sure
I use Verizon. These phones are unlocked meaning u should be able to use with any carrier. But that's if the carrier supports the phone. Verizon didn't. Which is why I am selling mine and bought one that was supported by my carrier. I loved these phones. Sad that some carrier systems don't support them anymore.
A:AnswerThe service area must have GSM, HSPA, LTE, GSMG availability. I purchased to use in St. Vincent. Purchased the phone in the US, bought a SIM card when I as rrived in country and it works perfectly. Set up was very easy.