1. Install qq mobile app on your mobile phone and click to open qq.
2. After opening, click on the avatar in the upper left corner.
3. You can see that there is a question on the right side of the avatar about how to modify the personalized signature. Click it, as shown in the figure below.
4, find out how to qq personalized signature, click, as shown below.
5. Click on the text box area above, as shown in the figure below.
6. Enter the personality signature you want to change, and the change is complete, as shown below.