Joke Collection Website - Public benefit messages - Why is there always a text message when the phone is turned on and off? What is the reason?

Why is there always a text message when the phone is turned on and off? What is the reason?

There are several possible reasons for automatic shutdown: 1. The protection circuit in the lithium battery is too sensitive, and the power will be cut off when the current is high. 2. The battery is aging. 3. There is dirt on the metal sheet at the contact position of the battery, which leads to poor contact of the power supply. 4. The connection between the battery and the mobile phone is easy to loosen.