1. Use Tencent Mobile Manager software to move the software application to the memory card. Can clean up junk files, redundant installation packages, background software, large files (upgrade files of programs and systems, big data cache of software, etc. ), photos, audio and video, etc.

2. In mobile phone file management, delete software installation packages, documents, compressed files and folders named after the deleted software.

3. Uninstall some unused software.

4. Clear some large files such as videos, music and pictures.

5. You can try to crack the highest authority of the system and uninstall unnecessary built-in software.

6. In the phone settings-storage, set the default storage space as a memory card.