How to solve the problem without a signal in the room (how to solve without a signal)

Audio commentary

Hello, everyone. The meeting will answer your questions. How to solve the problem without a signal in the room, and how to solve it without a signal? many people don't know yet. Now let's take a look at it.

Answer:

1. If it is in a remote or high place, such as the top of the mountain, the basement or the elevator, the poor cell phone signal is normal. If the cell phone signal is not good, you can restart the phone. Check the phone mode and reset the phone. Before resetting, it is recommended to back up important files in your phone to avoid loss.

2. How did the cell phone signal come from?

3. The mobile phone receives the signal through electromagnetic wave. In 1831, Faraday in England discovered the phenomenon of electromagnetic induction. Maxwell further expounded the research results of Faraday et al with mathematical formulas and extended the theory of electromagnetic induction to space. More than 60 years later, Hertz confirmed the existence of electromagnetic waves in experiments. The discovery of electromagnetic wave is not only the turning point of wired communication, but also the origin of the whole mobile communication.

This is the end of this article. I hope it will be helpful to all of you.