Hello,
try to disable modem first. Here is the example:
root@Teltonika-RUTX09:~# ifdown mob1s1a1
root@Teltonika-RUTX09:~# /etc/init.d/gsmd stop
root@Teltonika-RUTX09:~# microcom /dev/ttyUSB2
ate1
OK
at+qcsq=0
OK
at+cgreg=2
OK
at+cgreg?
+CGREG: 2,1,"90","105A29",7
OK
at+qeng="servingcell"
+QENG: "servingcell","NOCONN","LTE","FDD",246,02,105A29,264,78,1,4,4,90,-89,-8,-63,14,255,-32768,-
OK
at+qeng="neighbourcell"
+QENG: "neighbourcell intra","LTE",78,264,-8,-89,-62,0,38,5,12,10,255
+QENG: "neighbourcell intra","LTE",78,280,-17,-97,-72,0,30,5,12,10,255
+QENG: "neighbourcell intra","LTE",78,224,-19,-100,-73,0,27,5,12,10,255
+QENG: "neighbourcell inter","LTE",6200,264,-13,-70,-49,0,38,4,14,14
+QENG: "neighbourcell","WCDMA",2938,1,6,6,-,-,-,-
+QENG: "neighbourcell","WCDMA",10638,2,6,6,-,-,-,-
OK
at+qnwlock="common/4g",1,78,264
OK
+CREG: 0
+CGREG: 0
+QNWLOCK: "common/4g",0
+QIND: SMS DONE
+CREG: 2
+CGREG: 0
+CGREG: 2
+CREG: 1,"90","104A2A",7
+CGREG: 1,"90","104A2A",7
+CREG: 1,"90","105A29",7
at+qeng="servingcell"
+QENG: "servingcell","NOCONN","LTE","FDD",246,02,105A29,264,78,1,4,4,90,-89,-10,-60,12,255,-32768,-
OK
root@Teltonika-RUTX09:~# /etc/init.d/gsmd start
root@Teltonika-RUTX09:~# ifup mob1s1a1
Check Cell ID on the Web UI Status > Network > Mobile page.