One user says that this is the explanation Apple support provided when taking their laptop in for a service. The second possibility sounds plausible, given last year Apple warned MacBook owners not to use webcam privacy shields, because it reduces the clearance between the keyboard and panel.
Another is that the affected laptops have debris on the keyboard, which pushes into the screen when closed causing cracks to appear. One is that the screen is flexing as the lid is moved, with one user suggesting that the frame may simply be too thin to protect the fragile frame from torque force as it’s closed. So what’s causing the phantom MacBook cracks? Two possibilities seem likely.
