A YouTuber dissected an iPhone Duo and thinks he found the cause of crackgate

YouTuber CuriousHagi performed durability testing on an iPhone Duo and found that the screen cracked due to a weak spot in the hinge, specifically a thinner link in the middle of the phone that snapped at a small notch. The hinge is complex, consisting of a gear-like central hinge and two types of linking hinges. Marks on the support plate indicate where the hinge may have gotten caught.