What if the mobile phone has no signal?

Operation method

The mobile phone has no signal. It is likely that the mobile phone mode has been changed to flight mode, so there will be no signal.

Just turn on the phone settings, turn off airplane mode, and wait for the phone to automatically search for signals.

If the SIM card of the phone is not inserted properly, the phone may also have no signal.

Just aim the needle at the pinhole of the phone, take out the tray of the inserted SIM card, and reposition the SIM card.

When the mobile phone has no signal, there may be a problem with the mobile phone network.

Just open the phone settings, find Universal, select Restore, and then restore the network settings.

Check whether the phone has been shut down. You can call a friend. If you are prompted to shut down, the phone will be disconnected. When the phone is shut down, calls can sometimes come in, but cannot go out.

Check whether you are in some places where the signal is blocked or there are many people. For example, the signal at the concert is weak, and there are gas stations, libraries, examination halls, military management areas, etc. These places may also restrict the signal.

Check whether you are in a confined space, such as an elevator, or in a very wild suburb, or even in a no man's land. In this case, you need to get away from that environment before your mobile phone can have a signal.

If there is still no service after the factory settings are restored, it may be that there is a problem with the antenna and other hardware of the phone, which need to be taken to after-sales maintenance.