When the mobile phone received the text message, it was dead.

Look, you can turn it off by changing the mute. It is possible that the vibration is caused by power contact problems and SMS reminders.

Poor line contact will lead to power failure and shutdown. If you turn it off after changing the mute, it may be a software problem, and the general hardware is not prone to problems. By the way, I wonder what brand of your mobile phone is. If it's a software problem, brush it. Some time ago, the mobile phone was not easy to use and often turned off for no reason. So I brush my own computer and brush a lot of games. It is great to brush my motorcycle's mobile phone with QQ. But there are some risks. You can go to the forum to see other people's brush tutorials. The software of each brand of machine brush is different, so you should brush it according to your machine model. You can search this point.