1. Open the phone desktop and click "Wake Up Picture". Open the home page of wake-up picture and click "+Import picture".

2. Open all photo interfaces and click "Pictures".

3. Open the portrait classification interface and then slide the toolbar to the left. The toolbar contains beauty, beauty, facial reconstruction, face-lifting, body-shaping, facial stereo and cosmetic pen. Then click the "Face Stereo" tool.

4. Open the five-sense stereo tool and click "Nose", then hold down the white slider and drag it to the right to increase the stereo sense of the nose.

5. After the stereo nose is set, click the "Compare Before and After" button to see the production effect, and then click "√" to submit and save.

6. Open the portrait classification interface, and then click "Filter".

7. Open the filter classification interface and slide the filter effect list to the left. The list includes nature, texture, oil painting, light retro, movies, movies, freshness, food and black and white filter effects. Then click the "bw3" effect of the black and white filter.

8. After selecting the bw3 black-and-white filter effect, hold down the white slider and drag it to the right to increase the black filter effect, and then click the "Contrast Before and After" button to see the effect after adding the filter.