I use Xiaomi mobile phone. Why can't I get calls and text messages sometimes?

1. When the mobile phone enters the signal blind area (the area where the base station signal is not successfully covered), it cannot receive calls and short messages.

2. Entering areas with unstable signals or signal obstacles, such as underground garages, dense floors, remote mountainous areas, subway stations, tunnels, places where signals are not easy to penetrate or mobile phone signal shielding areas (special areas), similar problems will also occur.

3. When using mobile phones in these areas, it is inevitable that there will be a delay in receiving or sending short messages, which is not directly related to the function of mobile phones, nor is it a problem with mobile phones.

4. If you are worried about missing important calls, you can open the call secretary service function (the monthly function fee is 3 yuan). When you arrive in an area with normal cell phone signal, you will receive a short message from the service desk to inform you of missed calls.