Why a Foldable iPhone Screen Could Crack at the Hinge

Why could a foldable phone screen crack at the hinge?

A foldable phone has to bend at the same place each time it opens and closes. The display sits beside a hinge made of moving parts. That puts the hinge and the screen in close quarters, so a problem with alignment, movement or contact could affect the display. The available reporting does not establish which of those possibilities, if any, caused the iPhone Duo failures.

Shahram Mokhtari, a teardown technician at iFixit, examined an iPhone Duo and told The Verge that the problem may lie along the hinge, where gears, springs and joints work together ¹. The article describes a possible stress “hotspot”: a small area where pressure or contact could be concentrated near the inner screen ¹. That is a proposed explanation, not a confirmed engineering finding.

The reports describe damage around the middle of the inner screen, above the hinge, with lines on the right side of the display ¹. Another report describes bright white lines appearing within hours of unboxing ². Those accounts help identify the reported pattern, but they do not by themselves explain what physically failed.

What happened to iPhone Duo owners?

The iPhone Duo is Apple’s first foldable smartphone. It was released on October 23, 2026 ⁴. Reports of damaged inner displays appeared shortly after owners received their phones, according to The Verge and ZDNET ¹².

The reports include images shared on social media, but the number of posts is not the same as a verified count of failed devices. ZDNET says the reports do not establish how widespread the issue is ². Social media attention and jokes about the cracks show that the issue has attracted notice, not how often it happens ³.

What has Apple said about screen replacements?

Apple has acknowledged an issue affecting the inner display and said owners with display problems should contact AppleCare about a replacement, according to ZDNET ². The same report says Apple described the affected devices as a small number, but it does not provide a total or a failure rate ².

The Verge also reports that Apple is replacing damaged units, while noting that the company had not given details about how many phones were affected ¹. The sources therefore establish a response for affected customers, but do not give enough information to assess how the problem is being handled in every case.

• If an iPhone Duo display shows damage, Apple’s stated route is to contact AppleCare ².
• The reporting does not confirm whether all reported cases have the same cause or qualify for the same resolution ¹².

Should people worry before buying a foldable phone?

The reports are relevant to anyone weighing a new foldable phone, but they are not enough to calculate the odds of a screen failure. The number of affected devices, the number sold and the circumstances of each failure are not available in these sources ¹². A small set of visible reports can reveal a possible problem without showing how common it is.

For a prospective buyer, the practical point is to look for updated information from Apple and to understand the available support and replacement process before purchasing. This is especially useful when a product is new and its long-term durability record is not yet clear. The sources do not provide a tested lifespan or a reliable comparison with other foldable phones.

For current owners, the reporting does not say that ordinary use caused the damage. ZDNET notes that if the problem stems from manufacturing or assembly, it would not be down to the customer ². Since the cause is still unconfirmed, owners should avoid assuming either that they caused it or that every similar-looking line has the same explanation.

What is still unknown about the hinge issue?

The central unanswered question is the precise failure mechanism. The hinge has moving components, and a teardown expert has suggested a possible relationship between those components and stress or contact near the display, but the reporting does not show a confirmed cause ¹².

The overall frequency is also unclear. Apple has acknowledged the issue and offered a route to replacement, but the available reports do not provide a verified number of affected phones or a failure rate ¹². It is also unclear whether the reports reflect one manufacturing or assembly problem, several different causes, or a pattern that will continue as more owners use the device.