YouTuber teardown finds likely cause of iPhone Duo screen cracks

YouTuber CuriousHagi reproduced the iPhone Duo screen cracking in durability tests and tore the phone down to find the culprit. The failure appears to come from a thinner middle link in the complex hinge that snaps at a small notch, with marks showing where the hinge caught on the support plate.

• The iPhone Duo hinge uses a gear-like central hinge and two types of linking hinges
• A thinner middle link snaps at a small notch where it is weakest
• Marks on the support plate show where the hinge may have caught
• Users report cracks within hours of use