Potential Screen Damage Linked to iPhone Duo’s Hinge Design Issues

Apple faced a wave of reports shortly after the launch of the iPhone Duo last Friday, with several users noting that the inner display of their freshly purchased foldable devices exhibited cracks. Social media platforms were flooded with images showcasing similar damage, primarily characterized by cracks above the hinge, particularly affecting the right side of the screen. On Monday, the tech giant acknowledged the issue, stating that it would replace affected units, though it refrained from disclosing the exact number of reported defects.

What exactly is causing these problems?

Shahram Mokhtari, head of the teardown team at iFixit, provided insights after conducting an analysis of the iPhone Duo. He speculated that the root of the issue lies in the mechanics of the hinge. This intricate assembly, which includes gears, springs, and joints, is designed to allow the device to close flat while minimizing the crease formed on the inner screen. However, Mokhtari noted that in some cases, the flexible screen seems to be pressing against a hinge component, raising concerns.

According to Mokhtari, the inner display is extremely delicate. “If you were to poke the edges of the screen with a sharp object, you’d likely cause damage,” he explained. Photos circulating online display telltale signs of screen damage, notably a black spot where the impact occurs — the result of metal making contact with the display.

Further details can be found in iFixit’s teardown articles and videos, which illustrate where the hinge transitions occur. The central hinge support must accommodate a crossing flex cable, leading to multiple edges that may be responsible for the observed damage. Mokhtari highlighted that the structural design might not permit the support bar to drop adequately while folding, potentially creating high-stress areas between the hinge and the bent screen.

While Apple claims this defect affects only a “small number” of units, Mokhtari indicated that the company possesses comprehensive data on the issue that they may not be fully disclosing. He stressed that foldable screens have inherent delicacies, suggesting that a specific failure rate is inevitable. Although Apple has not initiated a recall, Mokhtari cautioned that if the issues persist over the next few months, it may result in broader corrective actions.

Mokhtari also remarked on the significance of this being the inaugural generation of the iPhone Duo. “This is a learning opportunity for Apple’s engineers,” he said, confident that future iterations of the foldable device will incorporate design improvements based on the data collected from this release. He added that many users report no issues with their devices, suggesting that while concerns exist, not all units are affected.