Do Siberian people use mobile phones? It's too cold. Will the mobile phone break down?

Siberian people use mobile phones! The mobile phone will not be frozen, and the low-temperature mobile phone will only automatically turn off! If the temperature is too low, the chemical reaction will slow down or even stop, and it will be impossible to provide current. The mobile phone will naturally prompt that there is no electricity or no electricity! If this happens, just heat the phone and the power will naturally return to normal!