I used this AT command AT+COPS=4,2,"PLMN" to set a PLMN which currently doesn’t have network coverage. According to the documentation, it should automatically switch to another PLMN when it can’t find the specified one. However, it hasn’t switched even after a long wait. Is this because the process of network searching takes a long time? How long does it usually take to finish searching? Will it switch immediately when the current PLMN is unavailable, or will it wait for a while?
hello, sorry for late reply, could you please tell us your current firmware version? thanks~