iPhone Duo owners have complained about "exploded" smartphones. Part of the folding screen stops transmitting images. The first reports of the problem appeared on social networks, writes Bloomberg. Users surveyed by the agency complain of a "crunch" sound when opening the phone and the formation of a large crack along the fold line. Some owners are unhappy with the white dot and other issues on the right side of the display. In all cases, users report feeling a bump under the screen near where the crack started. Apple has confirmed that it is aware of this situation. "If users experience problems with their iPhone Duo display, they should contact AppleCare for a replacement," the company said. There is no such extended warranty program in Russia. As Apple noted, most smartphones of this model work properly.