Why does Xiaomi's mobile phone encounter a network card when receiving short messages?

Reason: It's like being disconnected when answering the phone and playing games. Sending text messages and answering phone calls do not use 4G network, so you need to switch to 3G or 2G (different operators, different switches). Because the network type is switched at this time, the network will be disconnected.

Solving this problem is very simple, and it can be solved by opening the VoLTE call. After turning on the VoLTE calling function, you can make calls, send and receive messages and play games in the 4G network at the same time. The following is the operation process of turning on the VoLTE calling function in Huawei EMUI9. 1 system (other brands of mobile phones will turn on the phone in different ways):

First turn on the phone, find the icon of "Settings" and click Open.

2. After entering the system setting interface, find "Wireless and Network" and click Open.

3. Find the item "Mobile Network" in this interface and click Open.

4. Find the "VoLTE HD Call" item of the current traffic master card and turn on the "switch" on its right side.