Causes and solutions of automatic shutdown of mobile phones

Automatic shutdown of mobile phones can be divided into normal automatic shutdown and abnormal automatic shutdown. This paper will introduce the reasons and solutions of automatic shutdown of mobile phones.

Normal automatic shutdown

The so-called normal automatic shutdown means that the power has been exhausted and the observed ICH value is basically lower than 10. In this case, automatic shutdown is normal.

Abnormal automatic shutdown

However, if the power is sufficient but it is suddenly turned off automatically during use, it will be found that the power is displayed as a symbol of sufficiency after starting. This phenomenon belongs to abnormal shutdown, which also shows that everything is almost normal in standby. Once talking, texting, accessing GPRS and taking photos, it will automatically turn off, in other words, it will work normally when the current signal is weak and turn off immediately when the current is high.

cause analysis

Many users have experienced sudden automatic shutdown for the following reasons: 1, and the leakage of the mobile phone motherboard leads to excessive current. 2. The protection circuit in the lithium battery is too sensitive, and the power will be cut off when the current is high. 3. The battery itself is aging. 4. There is dirt on the metal sheet at the contact position of the battery, which leads to poor contact of the power supply. 5. The connection between the battery and the mobile phone is easy to loosen.

solution

If the first two problems are found after inspection, if it is within the warranty period, go to KF. After the warranty period, find a reputable professional repair shop for repair. If the latter two problems are only because the battery metal sheet is dirty and oxidized, the situation will be improved as long as it is wiped clean with a glue stick. Putting paper or film between the battery and the mobile phone can also solve the problem of poor contact caused by loose battery.