What is this short message? After receiving it, the mobile phone instantly disconnected from the network.

Interference from pseudo base station signals is not excluded, and this short message may also be sent through pseudo base stations. In the area covered by pseudo base stations, there are usually temporary signal problems, and the messages sent generally hide virus or fraud information. You can call the police directly or call the customer service feedback of the communication company (Unicom Telecom). The landlord's mobile phone should not be Huawei's. Huawei mobile phones can directly shield the signal interference of pseudo base stations.