Answer 1: The program is forced to close Hello: It may be because these programs are not compatible with the phone, or the program encounters a fault and reports an error during operation. It is recommended that you close unnecessary programs or processes before opening the program, clean up system garbage, and improve performance. Or, if the system program is forcibly stopped, you can try to wipe the phone directly (restore factory settings). Answer 2: Programs running automatically in the background cannot be turned off Some applications have functions such as automatic update and traffic monitoring. After they are turned on, they will always run in the background of the system to obtain the latest data. For these software, you can go into each software and manually turn off the corresponding functions (such as automatic update, etc.). In addition, there are some application processes in the system that can only be solved by obtaining the system ROOT permission and then using the "system weight loss" of the optimization master.