Apple’s inaugural foldable smartphone, the iPhone Duo, officially hit the market on 23 October 2026, but early adopters are already encountering serious screen and hinge defects that threaten the device’s reliability. Reports from owners in several countries describe bright white lines, dead pixels, cracks and abnormal screen movement appearing within days of unboxing, prompting concerns over the phone’s durability and prompting Apple to collect faulty units for engineering review.
**What specific problems are users seeing?**
- A bright line of white pixels has been captured in the bottom‑left corner of many screens.
- Some devices show damage across the middle of the display, likely caused by stress from the central hinge.
- One video posted on X shows the screen shaking and images shifting while the phone remains folded, a defect that worsens when the device is fully opened.
- An Australian buyer reported a cracked display after roughly six hours of use and fewer than 20 folds, hearing a snap as the screen broke near the hinge.
**Why is the hinge suspected?**
In a brief analysis, [iFixit](https://www.ifixit.com) identified the hinge as the primary culprit. The firm noted that the stress concentrates at the transition where the central hinge support meets the flex‑cable opening, exerting excessive pressure on the flexible OLED panel. This pressure can tear the pixel array and generate the bright lines observed. iFixit also explained that the internal curved guide rails, intended to control the folding motion, may shift upward during use and contact the underside of the screen, creating uneven force points that lead to cracks.
**How is Apple responding?**
Apple has not issued an official statement confirming a design flaw, but multiple reports indicate that the company is gathering damaged units for inspection. Unverified sources claim that some Apple Stores are privately swapping defective iPhone Duo units for customers under warranty, despite limited inventory. In the United States, T‑Mobile representatives have reportedly told users that replacement parts will not be available until January.
**What are the repair costs?**
Apple’s support page lists the following out‑of‑pocket fees for iPhone Duo repairs: back glass replacement at $199, rear‑camera repair at $229, internal display damage at $999, and “other damage” at $1,499. These figures suggest that fixing the device will be expensive for most owners.
**Is this the first foldable phone to suffer such setbacks?**
No. When [Samsung](https://en.wikipedia.org/wiki/Samsung) launched its first foldable phone in February 2019, it also delayed the release to address screen and hinge durability concerns. Samsung later issued a statement pledging stronger display protection and clearer usage guidance for its Galaxy Fold series.
The iPhone Duo’s early reliability issues represent a significant challenge for [Apple](https://www.apple.com), which has long avoided the foldable market due to known durability problems. If the defects persist, they could erode consumer confidence and dampen demand for Apple’s first‑generation folding device.