A:AnswerI'm not sure you would have to purchase the chip,it would be the activation you'd be paying for but could be wrong.If you do have to buy the chip,it wouldn't cost any more than for most phones
A:AnswerI recently took a trip to costa rica and it worked their, it should be the same for mexico. Check with your cell phone provider for cell coverage.
A:AnswerAm from one of the Caribbean islands. The phone is unlocked and I have a choice to switch to any mobile service provider. Since it's unlocked (sim card access), can be used. Thus far no issues and hope future updates doesn't compromise use. Good buy