In order to qualify for the deal, you basically need to bring in your old smartphone or tablet which isn’t older than 3 years, and it should be in relatively good working condition. We expect that AT&T reps will be on hand to appraise your device before giving you credit, so we’ll let them figure it out. Interestingly it seems that according to AT&T’s press release, the carrier will be giving at least $100 in credit, meaning that at the bare minimum, you will be able to get $100 to your next purchase, while some devices could in theory net you more.
In any case head on over to AT&T’s website to read the press release and its terms and conditions in its entirety if you want to know more.