Merely three days following the release of Apple's inaugural foldable smartphone, the iPhone Duo, numerous consumers have reported encountering comparable malfunctions with the inner screen. These issues include cracks running along the fold line and the emergence of dead pixels on the right edge. On October 25, the well - known repair organization iFixit unveiled a teardown report. By employing CT scans, conducting physical disassembly, and creating a 3D model of the hinge based on Apple's patents, their preliminary investigation indicated that the malfunctions might be linked to the internal support structure of the hinge. For instance, the central support rod may fail to retract correctly when the phone is closed, or the curved guide rails could interfere with the screen. Apple has formally launched a self - service repair manual. This manual details a variety of potential problems and offers advice to users on how to troubleshoot these issues in accordance with the provided guidelines. It also encourages users to seek after - sales support when necessary. In cases where the damage is not attributed to human factors, Apple will replace the device with a brand - new one. However, if the damage is caused by the user, the user will be responsible for covering the repair costs. Without AppleCare+, the estimated cost for out - of - warranty repair of inner screen damage is 7,998 yuan. In contrast, with AppleCare+, the service fee is 628 yuan.