我有一个 Quectel EC25 调制解调器,但我没有插入 SIM 卡。当我想使用以下命令设置不同的技术(2G、3G、4G)或不同的运营商(MNC)时,“servingcell”仍然是前一个。
AT+QENG="servingcell"
+QENG: "servingcell","LIMSRV","WCDMA",432,35,5962,9C58AFF,2993,453,1,-57,-11,-,-,-,-,-
OK
AT+COPS=1,2,"43235",0
OK
AT+QENG="servingcell"
+QENG: "servingcell","LIMSRV","WCDMA",432,35,5962,9C58AFF,2993,453,1,-57,-5,-,-,-,-,-
OK
AT+COPS=1,2,"43211",2
OK
AT+QENG="servingcell"
+QENG: "servingcell","LIMSRV","WCDMA",432,35,5962,9C58AFF,2993,453,1,-60,-6,-,-,-,-,-
OK
如何在调制解调器上应用上述锁定?是否存在存储当前服务小区信息的内存或类似概念,并且我必须在锁定 MNC 或技术之前/之后重置或清除?是否有补充命令来满足锁定条件?