1. The most direct way to run the memory is to restore the factory settings or uninstall the application and reinstall it; You can also open application management, clear data, clear cache and clear applications. The mobile phone system comes with a mobile phone housekeeper, and all applications are prohibited from starting automatically. It is set to automatically clear applications every day, with no more than three background applications running.

2. For mobile phone memory (using buffer files), the most direct way is to slim down files frequently, uninstall unused apps, selectively clean up useless files, or use cloud disk backup to delete source files after backup. This is the most violent and effective way. Open the file and find the useless file to delete.