1. Uninstall infrequently used applications:

Open Settings > Application Market > Installed Applications, and select the application that is not commonly used to uninstall.

2. Clean up the application cache and data:

Open Settings > App Market > Installed Apps, select an application, and click Storage Space > Clear Cache or Clear Data.

3. Clean up the system cache:

Open settings > storage space >; "internal storage" >; Other application data, select Cache Data and clear the cache.

4. Mobile application of 4.SD card:

Open Settings > App Market > Installed Apps, select an application, and click Storage Space > More > Move to SD card.

5. Use the cleaning tools provided with the mobile phone:

Open settings > storage space >; "Clean up space", select the type to be cleaned (such as application cache, system cache, software installation package, etc.). ) to clean up.

6. Back up and delete unnecessary files:

Back up unnecessary photos, music, videos and other files to the computer or cloud storage, and delete the redundant files on the mobile phone.

Doing the above operations can release a lot of mobile phone memory.

Personally, I suggest you read carefully when cleaning up, avoid cleaning up some important documents, and clean up carefully if you can't find them.