YouTuber Investigates iPhone Duo Failures, Pinpoints Hinge Link Weakness

Image: A YouTuber dissected an iPhone Duo and thinks he found the cause of crackgate · Source

A YouTuber's teardown of the iPhone Duo foldable reveals hinge design flaws causing screen cracks and failures shortly after purchase, shedding light on widespread user complaints.

Reports of the iPhone Duo experiencing rapid and severe failures have flooded social media and the iPhone Duo subreddit, with many users describing the device developing screen cracks within mere hours of use. The cracks consistently appear near the phone's hinge, suggesting a mechanical issue in that area.

Investigating these failures, the tech YouTuber CuriousHagi conducted durability tests on the iPhone Duo, replicating the crack under controlled conditions. Following this, he disassembled the device to understand the root cause. His examination revealed that the Duo features a complicated hinge system, incorporating a central gear-like hinge accompanied by two types of linking hinges on either side.

The critical fault appears to hinge on one particular link located mid-hinge, which is notably thinner than adjacent links. This thinner link contains a small notch, making it a stress concentrator and the weakest point susceptible to snapping. Additionally, CuriousHagi observed marks where this link interacts with the hinge support plate, indicating it may catch or bind at that junction, contributing to the failure.

This insight provides a tangible explanation for the "crackgate" phenomenon reported by many iPhone Duo owners, highlighting a mechanical design vulnerability in the hinge assembly. While Apple has not officially acknowledged or addressed the issue, this teardown underscores the challenges foldable devices face in durability. Further official investigations or redesigns may be necessary to improve the longevity of foldable smartphones like the iPhone Duo.