Notify when getting "no signal" on the LG Q6

For several days now, the LG Q6 has made me angry when it suddenly stops detecting the SIM card. (once or twice a day) I don't want to discuss the cause and possible solution. (Restart always helps) The worst part is that the outage cannot be predicted. Therefore, I want to ask if there is any way that would alert me to this. Either in the absence of a SIM card or on the loss of connection (of course, when the airplane mode is not activated).