Reports of Screen Failures
Shortly after the launch of the iPhone Duo, Apple’s first foray into the foldable smartphone market, early adopters began reporting significant hardware issues. Users across social media platforms and the iPhone Duo subreddit have documented instances where the device's inner screen develops cracks shortly after purchase, often within just a few hours of use.
Reports consistently describe a similar failure pattern: the hinge appears to catch on an internal component, followed by an audible cracking sound and the subsequent appearance of lines on the right side of the 7.6-inch inner display.
Investigation and Teardowns
Independent testing has sought to identify the root cause of these failures. YouTuber CuriousHagi successfully reproduced the screen cracking issue during durability testing, subsequently performing a teardown to investigate the internal mechanics. While the exact mechanical culprit remains a subject of ongoing analysis, the recurring nature of the damage suggests a potential design or assembly flaw within the hinge mechanism.
Repairability experts at iFixit also conducted a teardown of the device, awarding it a 5/10 repairability score. While this is the highest score the site has awarded to a foldable device to date, the analysis highlighted the complexity of the hinge and the use of a matte nano-texture cover designed to mask the screen's crease.
Apple’s Response
Apple has officially acknowledged the situation. In a statement provided to media outlets, including Bloomberg and 9to5Mac, the company confirmed it is aware of an "issue impacting the inner display" on a "small number of iPhone Duo units." Apple has advised affected customers to contact AppleCare for a replacement unit. The company has not yet provided specific technical details regarding the cause of the failure or the total number of units affected.
Software and Ecosystem Context
Despite the hardware concerns, Apple continues to support the device through software updates. The recently released iOS 27.2 update introduced Apple Pencil support for the iPhone Duo and added an "Edge Light" feature designed to improve lighting during video calls. These updates are part of the broader effort to optimize the device's 7.6-inch inner display and 5.4-inch outer screen for the iOS 27 interface.
