(Mobile phone automatic shutdown, also known as automatic power off, is divided into seven types: unpunctual shutdown, button shutdown, incoming call shutdown, shutdown after startup, unable to insist on booting, closing the flip to shutdown, and launching shutdown. These shortcomings are more annoying and difficult. When cleaning the shortcomings, there is usually no way to start repairing them. Even some "experts" with repair experience feel at a loss. The original copy, just pay attention to the query when repairing, and grasp the essence of the defect.)