A:AnswerIf your talking about prepaid wireless providers like cricket and boost mobile yes it can but has to be bought unlocked or in some cases some providers allow the use of other carrier phones just by switching the SIM cards out
A:AnswerThe protection plan is separate If u buy it thru Best Buy it’s for 2 years if u but thru your carrier it’s until u decide to take it off your plan or u pay off your phone
A:AnswerYes, you can do payment plan under your chosen network or you can use your Best Buy credit card. As far as I know, you can unlock your phone when you had fully paid your phone. Hope it helps!
A:AnswerIt would reflect on the Payment plan you have now. They will readjust the bill.
The down payment which is the taxes on the phone is paid when you pick up / buy the phone.
A:AnswerNot sure what the price would be but you can always take your phone to the retailer that you have service with and they will give you a trade in price depending on the condition of the phone