If the personalized signature is changed and not updated immediately, there will be no new personalized signature, which is a system failure.

Personalized signature modification steps: 1. Open the phone, click the little red book icon and log in. 2. Go to the home page of Little Red Book and click on my rightmost corner. 3. Enter the little red book personal interface and click the setting circle next to your profile. 4. In the setting interface, we select personal information and click Enter. 5. Next, we click on the personalized signature. 6. Edit your signature, and then click Finish in the upper right corner.