A:AnswerHi, Mel. This limited manufacturer's warranty begins on the original date of purchase, and is valid only on products purchased and used in the United States. I have included a link with more information. If you have further questions, you can reach out to us on Facebook at (http://m.me/samsungsupport) or Twitter at (https://twitter.com/messages/compose?recipient_id=18768513). We look forward to speaking with you. ^Kayla
https://www.samsung.com/us/support/warranty/
A:AnswerHello, Valgal. Although this Galaxy S10 is unlocked, we would suggest contacting the carrier to ensure their services can be added. Thank you for asking this question. ^Kayla
A:AnswerIf you buy an unlocked S10, it will be delivered to you unlocked by Samsung. Otherwise you or a third party will do it and there may be some issues later.