1. Open the phone, find and enter the "Everyday P Picture" app, and you can see the "Magic Cutout" option in the main interface. Click to enter this option.

2. After entering the options, select a style in the "Scene" option.

3. In the mobile phone picture, select the picture whose background needs to be changed.

4. Move the red box, select the appropriate angle, and click "√" to finish.

5. Use the daubing tool to daub, or click the eraser and other gadgets for micro-operation.

6. After daubing, click the checkmark button.

7. At this time, I found that the background had changed. If you want to change it, you can click "Custom Background" and replace the picture background according to your own preference.