What should I do if my mobile phone turns black after freezing?

In winter, mobile phones will turn black outdoors because:

1, mobile phone magnetic sensor failure;

2. The activity of lithium battery decreases at low temperature, and the power will decrease rapidly, resulting in automatic shutdown;

3. The working temperature of lithium battery is-10 to 45 degrees. If the temperature is too low, it will stop working, resulting in automatic shutdown.

Solution:

1. Install a micro magnet on the magnetic sensor or disconnect it several times before connecting the magnetic sensor. Different parts of the mobile phone model have different installation positions.

2. Avoid using mobile phones outdoors when the temperature is very low in winter, because low temperature will cause battery damage and automatic shutdown, and may also cause internal injuries due to water vapor condensation caused by indoor and outdoor temperature difference.