Why does my mobile phone send text messages by itself? (I'm not fooling around) Thank you, Great God.

The initial judgment is that the mobile phone is infected with a virus, and you can try to restore the factory settings; If it doesn't work, you can try the "hard grid machine"-format the phone memory card first, then format the phone, and then format the card on the machine. Some people on the internet are also troubled by this, saying that it is a virus to send it to a mobile phone shop. . .

Hope to adopt