Apple has acknowledged reports of display cracking on its newly launched iPhone Duo, confirming that a small number of devices are affected by an issue involving the foldable phone’s inner screen. The company says customers experiencing the problem should contact AppleCare for a replacement, although it has yet to explain what’s causing the damage.

The reports began appearing shortly after the iPhone Duo went on sale, with several users noticing cracks forming along the hinge on the lower half of the inner display. According to our previous report, some affected owners described a sticking sensation or popping noise when folding the device, shortly before the screen developed visible damage.

In a statement to MacRumors, Apple said it was aware of the issue affecting a small number of units, adding that early customer feedback had otherwise been positive. The company has advised anyone experiencing display problems to contact AppleCare, with some customers already receiving replacements in-store. However, limited stock means others may have to wait for a replacement device.

Apple maintains that the issue is limited in scope, with reported cracks generally appearing shortly after purchase rather than developing over time. The company hasn’t confirmed whether a manufacturing defect is responsible or whether it plans to introduce a fix. MacRumors also noted that some images circulating online appear to be AI-generated, making it harder to determine how widespread the problem actually is.

Meanwhile, repair specialists at iFixit have examined the iPhone Duo’s internal design and identified several possible explanations for the damage. Their teardown suggests that multiple components meet around the affected section of the hinge, including a central support bar that may not be retracting properly. If that’s the case, the mechanism could be putting unwanted pressure on the flexible display, although this remains unconfirmed.

For now, Apple hasn’t announced any broader repair programme or hardware changes. With the iPhone Duo still in its early days, the company will likely face further scrutiny over how it handles the affected devices, particularly given the importance of hinge durability in a foldable phone.