1, maybe the QQ version does not match the original version.

2, the network speed is too slow

To solve this situation, you can try the next version. If not, delete all QQ-related programs from the computer registry. Just restart your computer and install the latest QQ software. If not, try to reinstall the system. In addition, you can add some language codes and pictures (including dynamic JIF format) to QQ signature, so you can choose your favorite facial characters, including pictures in JIF format, upload them to QQ photo album, and then copy an address and paste it under the signature to save.

Why can't I modify my signature?

There are three possible reasons:

1, maybe the internet speed is not good?

2. Can I enter sensitive words?

3. The input is the same as before.

Try more. Is that the reason? If not, it is recommended to reinstall QQ.