Click on the QR code business card, and then change the style to set it. Regarding how to set it up, I will share the method with you.
The software version is: 8.0.30. Mobile phone model: oppoReno7.
The specific steps are as follows:
1. Open the WeChat software on your mobile phone, first click on Me in the lower right corner, and then click on the personal information box at the top.
2. After entering, click on the QR code business card.
3. Click Change Style below to switch to black and white.
4. After the replacement is completed, it will appear as shown in the picture below.
Click the three dots in the upper right corner to share it with your friends.