2. Find the file management function in the main menu and open it. Scan to detect the memory of mobile phone.

3. Scan and detect the mobile phone SD card.

4, open the phone's own storage function. Filter how large files you need to filter.

5. Manually delete the files to be deleted.

6. We can also delete the big files in the mobile phone through the mobile phone housekeeper.

7. Select "Cleaning Acceleration" and click "Slimming Mobile Phone".

8. Select the large file you need to delete in this function option.