iPhone 7 Upgrade Eligibility
I was thinking of paying in full for an iphone 7 at at&t, using my old prepaid plan on it, and waiting 6 months to unlock it. After I unlock my phone from at&t, can i get an upgrade to, say, a new iphone model for free, or do i still have to pay full price for that new iphone? or is it like a discount price to upgrade? For example, if i want to upgrade to an iphone 8, and its $700, do i have to pay $700 still? Do i have to be locked to at&t to upgrade?