How to check messages without signal?

There is no signal on the mobile phone because the signal will be affected by various factors such as topography, landforms and tall buildings during its propagation. If it is located in a relatively closed place, the signal will be affected. The treatment method is as follows:

1. Shut down again and try again;

2. Replace the mobile phone card with the mobile phone of family or friends and try again;

3. See if there are any signals from other Unicom users around;

If there is no signal, you can contact manual customer service for feedback.