It is believed that many people have encountered the situation that the mobile phone suddenly has no signal in their lives, which causes us to be unable to talk, send messages and connect to the Internet. Usually, as long as we are not in a remote area, it will automatically recover after a while in an intermittent state, but sometimes it will encounter the situation of delayed response, so how can we solve it? The following editor will teach you four ways to quickly solve the problem of no signal in mobile phones.
The first situation is that when our geographical position is in the blind area of signal, that is, places outside the network coverage area, such as workshops, factories, suburbs, rural areas, etc., because they have not yet built network communication facilities, there will be no signal search at this time. In addition, if the city's mobile phone signal is blocked and cannot be covered by the signal, such as office buildings, bar rooms, elevators, etc., there will be no signal at this time. The solution is to go out of the field without signal and transfer to a wide area for network communication.
The second situation is caused by interference equipment. Mobile phones receive signals through the propagation of electromagnetic waves, and base stations connect with mobile phones by transmitting radio waves, so we can talk online. Therefore, the equipment that interferes with the electromagnetic wave will block the signal of our mobile phone, the most common one is the place where the test room and others block the network communication. At this time, we only need to find the surrounding signal jamming equipment, and then turn off to reconnect the signal.
The third situation is that the software problem of mobile phone may also lead to no signal. Let's check whether the flight mode is on or the flight mode is called by the regular mission. If not, we can find out if some software will break the signal connection during the opening process. In this case, we can clean up the software running in the memory of the mobile phone, or restart it to see if the signal is restored.
The fourth situation is that there may be something wrong with our SIM card. If your phone often has no signal, you need to check the SIM card. We can take out the card and change it to another mobile phone, and then we can see whether it is the problem of the card or the mobile phone itself. If there is a problem with your mobile phone, it means that there is a problem with the receiving circuit of your mobile phone. At this time, you need to find a professional person to repair it.