In this little red book, you can only modify your nickname, but you can't modify the comments for the people you care about for the time being.

1. Open the little red book on your mobile phone and click me.

2. On my page, select Edit Data.

3. In the page of editing data, select a name.

4. In the name editing interface, enter a nickname and click Save.

In this way, the nickname in your phone book has been modified.