1. Open the settings menu of the mobile phone and find the application management or application options.

2. In the application management or application list, find and click League of Legends mobile game.

3. Enter the application information page of League of Legends mobile game and see some options, including storage and caching.

4. Click the storage option to view the storage usage of the application.

5. On the Storage Usage page, review the options for clearing the cache. Click the clear cache button.

6. You will be prompted to confirm clearing the cache, and then click OK.

7. Wait a while, and the system will clean up the cache of League of Legends mobile games.