iPhone Duo Screens Are Cracking Along the Hinge, and Apple Has Responded

The iPhone Duo launched on October 23, a week after pre-orders opened. Within hours, photos began appearing on Reddit and the MacRumors forums showing inner displays broken in nearly the same spot: a line running along the hinge, often showing up as a streak of bright pixels across one side of the screen. Some of the earliest images came from demo units in China, which went on sale hours before the U.S. launch.

One owner in Australia said his phone cracked after about six hours and fewer than 20 openings. He said he felt something shift near the internal hinge under the screen, then heard a crack as the display broke. He reported no visible marks on the screen or hinge beforehand. An Apple Store replaced the device on the spot.

Early reviewers who ran folding tests did not report screen problems, though that sample was small. It's also unclear how many of the circulating photos are legitimate. Some may involve user damage, and MacRumors noted that some images may be AI-generated.

Apple's Response

On October 26, Apple confirmed it is aware of an issue affecting the inner display on a small number of iPhone Duo units. The company did not explain the cause or share how many devices are affected. Apple's guidance:

• Contact AppleCare: Affected owners should reach out for a replacement.

• Early failures only: Apple says the problem is limited in scope and isn't expected to develop over time. On affected units, cracks appear shortly after purchase.

• Limited stock: Some owners have received in-store replacements, but supply is tight and others are waiting.

Hinge failures from normal use fall under Apple's one-year warranty, and launch-day buyers also have the standard two-week return window.

What iFixit's Teardown Found

iFixit tore down the iPhone Duo on October 25 and offered several possible explanations, though none is confirmed. To study the stress points, it built a 3D model of the hinge from teardown footage, patents and CT scans.

• Hinge stress point: The cracks cluster where a gap for a flex cable meets the central hinge support, an area where several edges change how the thin display is supported as it bends.

• Curved rails: Rails that follow the screen's pivot points may sit slightly above the flat hinge plates as the phone closes. One of them lines up with the damage.

• A part that won't retract: A center hinge support component meant to retract may not be doing so on some units.

• Other possibilities: Pressure, a trapped particle, repeated bending, a manufacturing defect, or a wiring fault that produces the same symptoms without the glass breaking.

Apple describes the inner display as a 10-layer stack, which gives a sense of how thin and delicate the panel is.

Repairability

iFixit gave the iPhone Duo a provisional repairability score of 5 out of 10. That's higher than the 4 out of 10 it gave both the Galaxy Z Fold8 and the Pixel 11 Pro Fold, making it the most repairable foldable iFixit has tested so far. It's still not easy to fix.

• Good: A repair manual was available on day one, the outer display comes off intact, and the batteries use an adhesive that releases with a small electrical charge.

• Bad: The inner display and hinge are the weakest points for repair. The screen trim requires heat to remove, and the inner panel is held in place with a lot of adhesive.

• Screen protector layer: The inner display's cover layer is designed to peel off. Apple charges $19 to replace it with AppleCare+ or $49 without.

In dust testing, iFixit found that particles reached the hinge and produced a crunching sound, though less dust got in than on Samsung's and Google's foldables.

Should You Be Worried?

If you have an iPhone Duo and the inner screen is intact after the first few days, Apple's statement suggests you're likely in the clear. If you notice a line of bright pixels or a crack near the hinge, contact AppleCare or visit an Apple Store. If you're still within two weeks of purchase, returning the phone is also an option.

For anyone still deciding whether to buy, it may be worth waiting a few weeks to see whether Apple identifies a cause or makes a manufacturing change. This is a developing story.

Sources

• MacRumors: iPhone Duo Owners Report Screens Breaking Along the Hinge

• MacRumors: Apple Responds to iPhone Duo Display Cracking Reports

• MacRumors: iFixit iPhone Duo Teardown Points to Possible Cause of Screen Cracks