Apple and major US carriers have closed a loophole that allowed customers to buy unlocked iPhones using carrier financing. The change now means iPhones financed through T-Mobile or Verizon will remain carrier-locked until the device is fully paid off.
Previously, buyers could take advantage of carrier deals and trade-in promotions while still using an unlocked iPhone with other networks or internationally. The new policy brings T-Mobile and Verizon in line with AT&T’s existing financing rules, limiting flexibility for customers.
Source: 9to5Mac