Some iPhone Duo users are reporting screen cracks along the hinge area, based on photos shared on Reddit and MacRumors forums. Almost all display faults occur precisely along the hinge, resulting in bright pixel lines across the screen.
An Australian user said their device cracked within six hours after opening it fewer than 20 times, with no prior visible damage. They felt something near the internal hinge and heard an audible crack as the screen broke. Apple replaced the device at the Apple Store.
Apple is likely collecting defective units to research failure points and improve manufacturing. Images from demo devices in China show similar cracks, though user damage may be a factor. Some early reviewers performed folding tests without issues, but samples are small.
With widespread availability, some failures are expected. The issue's extent is unclear, but hinge failures under normal use are covered by the one-year warranty. Buyers also have two weeks for returns.
Source: MacRumors · Summarized by HeadlinesBriefing