Mobile phone can't send out short messages, no network signal

The reason why SMS can't be sent or received is that the base station in the same place has been out of processing for a long time, or the channel interference of adjacent cells or the instability caused by the signal switching back and forth in the base station switching area. Generally speaking, it is most likely that there is a problem with the base station in that place, that is, there is a problem with the so-called BTS main equipment, which causes delay. What's more serious is that SMS can't be received, because the equipment is broken and he can't receive air signals, so he can't send it to your mobile phone. It is recommended to call the mobile complaint phone and let them handle it. I have also encountered problems with the landlord. If the same problem occurs for more than three days, directly complain to customer service at 186, tell him your location and let the relevant personnel handle it.