The software version shown below is: 8.0.30. Mobile phone model: oppoReno7.
The operation process is as follows:
1. Open the WeChat software on your mobile phone, first click Me in the lower right corner, and then click the personal information box above.
2. Then click on more information below to enter.
3. After entering, click Personalized Signature.
4. Then click on the blank space to enter the phone number.
5. After the input is completed, click Save in the upper right corner.
After the setting is successful, you can see that the personalized signature has your own phone number, and others can know it.