Apple has confirmed an inner-display defect affecting a small number of its new iPhone Duo foldables. Customers have reported hearing a crunch sound when unfolding the device, followed by cracks and display failures along the crease. Apple is aware of the issue and is replacing affected phones while investigating the cause. iFixit suggests a failing hinge component might be pressing into and cracking the display. Reports of this problem initially emerged on social media platforms like Reddit. Bloomberg News has independently verified the issue with multiple customers who experienced device damage. These customers provided photographic evidence of the damage and their interactions with Apple support. Apple acknowledged the problem in a statement, stating they are aware of the issue impacting a small number of iPhone Duo units. The company advises users experiencing display issues to contact AppleCare for a replacement. Apple also indicated that the defect typically appears early in the device's use and that the majority of Duo units are not affected.