Why did you suddenly receive a text message? I didn't send it.

The possibility of mobile phone virus is very small. There are the following possibilities: 1. The mobile phone browsed some trap websites. Solution: Unsubscribe from all services. 2. The mobile phone comes with malware. Solution: Delete the self-contained software. If you can't delete it, then simply set the number of the SMS center wrong. In that case, you can't send messages yourself. Look at what you said, you don't need SMS function. Summary: If it is a smart phone and you can't uninstall the software, you can choose to brush it, not a smart phone, or you don't need it at all.