Why can't mobile phones send and receive text messages? Is it a virus?

It's a virus, so it's recommended to install Tencent mobile phone housekeeper for antivirus. You can scan all junk viruses by yourself and clean up and kill viruses by yourself. Use Tencent Mobile Manager to set up security protection and virus detection.

Scan first, wait until the scan is over, and then kill the virus according to the prompt. It uses cloud killing technology, which can be identified by intelligent cloud, thoroughly kill viruses and protect your mobile phone.