In light of an incident where DIY repair enthusiast Yang Changshun live-streamed the removal of what he referred to as the 'frosted film' from the inner screen of an iPhone Duo using only his hands, Apple's customer service has issued a response. They clarified that the layer in question is, in fact, a nano-texture layer, not a conventional frosted film. Typically, this nano-texture layer is securely integrated within the device and will not peel off unless deliberately tampered with. Apple's customer service underscored that consumers are strongly discouraged from attempting to disassemble the device themselves or replacing the protective layer with third-party alternatives. Should this nano-texture layer sustain damage under normal use, the official cost for replacement stands at 398 yuan. The nano-texture layer serves multiple purposes: it minimizes glare, enhances the visual quality of screen creases, and offers protection against the stresses of repeated bending on the foldable display.