Open the phone settings.
2.? Select Memory and Storage and click Enter.
3.? Select Space Cleanup.
4.? Enter the space management, and then click the options such as application picture, application and video.
5.? Check unnecessary files.
6.? Click the trash can icon to delete it.
7.? Clear the cache in the mobile phone and restore the internal storage space of the mobile phone.
8.? Deleting unnecessary applications can restore a lot of memory space. If you need to save the APP, you can choose to clear the cache and clear the data.