Software version: 8.0.28. Mobile phone model: vivo Y31s.

The operation process is as follows:

1. Open the WeChat APP on your mobile phone, click me first, and then click the personal information box.

2. After entering, click the name.

3. Add a phone number, and then click Save to set up the phone.

Your nickname and phone number will be displayed on your personal business card.

You can also enter more information, click on the personalized signature, enter the phone number and set it for others to see.