Why iPhone Duo Hinges Might Be Cracking Foldable Screens
Following the launch of Apple's first foldable phone, users reported broken inner displays, leading experts to investigate potential mechanical flaws within the hinge mechanism.
Radwan AbdulhadiEditor and technology writer
Launch Day Reports and Apple's Response
Within hours of the iPhone Duo launch, people reported that the inner screen on some brand new foldable phones was already broken. The issue shared a consistent pattern across multiple social media photos, featuring a crack or display anomaly appearing in the middle of the screen above the hinge, alongside lines emerging on the right side of the display.
In response to the early complaints, Apple acknowledged an "issue" and confirmed it is replacing damaged units, though the company did not disclose detailed figures regarding how many broken phones have been reported.
Inside the Teardown: Investigating the Hinge Mechanism
Shahram Mokhtari, the lead teardown technician at iFixit, examined Apple's first folding phone to uncover potential causes. According to Mokhtari, the problem links to the hinge mechanism, where a complex arrangement of gears, springs, and joints enables the device to close flat while preventing a deeper crease by giving the internal screen space to bend gently.
At the troublesome spot, the flexible inner screen appears to push up against a specific component of the hinge. Mokhtari describes the inner screen as extremely sensitive, noting that even minor contact with a sharp tool can easily break the display.
Stress Hot Spots and Structural Contact
Social media imagery of damaged units frequently highlights a concentrated black spot on the display where metal appears to make contact with the screen. Visual representations featured in iFixit materials reveal how the hinge transitions, where the center hinge support makes space for a crossing flex cable and creates multiple edges that could act as culprits.
Further analysis suggests the center support bar might occasionally fail to drop down far enough during the folding process, creating a stress "hot spot" between the flat bar and the bent screen inside a closed device.
User Experiences and Durability Tests
Individual user experiences shared online reflect these mechanical pressures. One user noted feeling something around the internal hinge before hearing an audible crack and watching the screen break during regular handling.
YouTuber CuriousHagi tested a device under strenuous conditions and captured something similar on video, with the screen break manifesting in a comparable location. A subsequent teardown revealed that a part of the hinge connecting to the central bar had snapped.
Future Outlook and Apple's Next Steps
While Apple maintains that the issue impacts only a small number of units, experts emphasize that foldable screens and hinges remain extremely complicated and delicate. Apple currently isn’t recalling the devices, but technicians point out that ongoing monitoring over the coming months will determine if the problem is more widespread.
Because this represents the first generation of the iPhone Duo, engineers are actively gathering vital hinge data. Industry observers anticipate that Apple will likely redesign the fault points in future iterations, even though many users are currently operating their devices without encountering any trouble at all.
Sources
- The VergeHere’s why the iPhone Duo’s hinge could be cracking the screen
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