Tools: Huawei mate40pro, HarmonyOS2.0, WeChat 8.0.3 1.
1. In the WeChat interface, find the small arrow behind the avatar and click Enter.
2. You can see the personalized signature at the bottom of the personal information page. Click to set it.
3. Select the personalized signature option in the third column of the page, and then click it.
4. Edit the content on the page and save it.
5. Then enter the circle of friends to see the text below the avatar.