So for some reason last year I bought my iPhone 11 Pro on the iPhone Payments plan and not IUP. I don’t remember why, probably because I usually only upgrade every two years. But looking at the 12 Pro I really want to upgrade this year and I’m not sure the best way to do it. I still owe about $400 on my current phone since I’m only halfway through. Is there a way to convert to IUP? Maybe take advantage of the ATT promo deal? I am currently on ATT with an unlimited plan. Trade in my 11 Pro or sell it? Any thoughts or advice?