My purpose is to connect to cat-nb1 lte_band_20 network with b96 module. The flow of my commands is as follows. Is there a problem in the code flow or can there be a problem with the operator?
1- ATI
Quectel
BG96
Revision: BG96MAR02A08M1G
OK
2- AT+CFUN=0,0
OK
3- AT+QCFG=“nwscanseq”, 03,1
OK
4- AT+QCFG=“band”, 0,0,80000,1
OK
5- AT+QCFG=“iotopmode”,1,1
OK
6- AT+QCFG=“nwscanmode”,3,1
OK
7- AT+CFUN=1,0
OK
8- AT+CPIN?
+CPIN: READY
OK
9- AT+QSIMSTAT?
+QSIMSTAT: 0,1
OK
10- AT+COPS=0,0,“Turkcell”,9
OK
11- AT+CREG=1
OK
12- AT+CREG?
+CREG: 1,2
OK
13- AT+CEREG=1
OK
14- AT+CEREG?
+CEREG: 1,2
OK
15- AT+QNWINFO
+QNWINFO: “CAT-NB1”,“28601”,“LTE BAND 20”,6446
OK
16- AT+CGATT?
+CGATT: 0
OK
After a few minutes:
17- AT+CREG?
+CREG: 1,0
OK
18- AT+CEREG?
+CEREG: 1,0
OK
19- AT+QNWINFO
+QNWINFO: No Service
OK