iPhone Duo Hinge Issues Linked to Screen Cracks
Following the launch of Apple's first foldable iPhone Duo, users reported inner screen breakage near the hinge, which iFixit attributes to internal mechanical stress points.
Stock photo for illustration only, not from the actual event
- Users quickly reported inner screen failures on brand new iPhone Duo foldable phones right after launch day.
- iFixit lead teardown technician Shahram Mokhtari identified that internal hinge components are pressing against the delicate display.
- Apple acknowledged the issue affecting a small number of units and is replacing damaged devices for customers.
Just hours after the release of Apple's first foldable smartphone, the iPhone Duo, last Friday, customers shared reports online regarding broken inner screens on brand-new devices. Across various social media photos, the defects looked strikingly similar, featuring cracks or malfunctions right in the middle of the display above the hinge area, accompanied by vertical lines on the right side. By Monday, Apple officially acknowledged a hardware issue and stated it was replacing damaged units, though the company did not disclose exact figures on how many phones have broken so far.
Shahram Mokhtari, lead teardown technician at iFixit, disassembled the iPhone Duo to investigate the root cause. He explained to reporters that the trouble stems from the complex hinge mechanism—featuring gears, springs, and joints designed to let the device close flat while preventing sharp creases by giving the screen room to bend gently inside.
Stock photo for illustration only, not from the actual event
At the problematic location, the flexible inner display appears to be pushing directly against a part of the hinge structure. Mokhtari noted that this inner screen is extremely sensitive and vulnerable to sharp tools or edges. Images shared by users online frequently show a concentrated dark spot where metal components have impacted the display panel.
"In terms of numbers, we don’t know. Apple definitely has all the data here. And I suspect they know more than they’re telling us as well."
Shahram Mokhtari, iFixit
Detailed teardown media from iFixit demonstrated how the hinge transitions and how crossing flex cables create multiple edges that may act as culprits. The damage appears where the center support bar fails to drop down sufficiently during the folding process, potentially creating a stress hotspot between the rigid bar and the bent screen inside. At least one user reported feeling a strange sensation near the internal hinge before hearing an audible crack and watching the screen fail. YouTuber CuriousHagi, conducting durability tests, captured similar breakage in equivalent spots, noting a snapped connector component inside the central bar during further inspection.
Engineering first-generation foldable devices presents immense challenges regarding the delicate balance between structural thinness and display durability. Mechanical stress hotspots in folding screens are common engineering hurdles during early product lifecycles, often requiring substantial hardware redesigns in subsequent product generations to achieve long-term reliability.
Apple maintains that the defect impacts only a small number of Duo devices. Mokhtari concurs that precise failure rates remain unknown without internal manufacturer data, though he emphasizes that delicate foldable panels and complex hinges will inevitably experience a baseline failure rate. While Apple has issued no recall plans, Mokhtari suggests that if similar failure patterns persist months from now, the problem could prove widespread enough to warrant a formal product recall.
Source: The Verge
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