First of all, we open the WeChat application that has been installed on the mobile phone desktop. After opening it, click My Options in the lower right corner of WeChat.

Then click on your avatar to enter the personal information page, and we find more options in the penultimate line;

Then open the personalized signature and start editing. After editing the text you like, click Finish in the upper right corner of the page.

The personalized signature is edited. Try it with video!