May 26, 2020 · How To Unlock an AT&T Phone. AT&T phones must be fully paid off and not reported as lost or stolen. If your phone was on an installment plan or term agreement, it must have had service for sixty days.
Oct 06, 2016 · The good news is that all paid in full iPhone 7 models are able to be unlocked, even if they require iTunes and an account with the carrier it came from to unlock the iPhone. The Verizon, T-Mobile, and SIM-Free models apparently do not need to do this however, and can immediately accept any compatible SIM.