BG96 2G GSM900 Connection Problem
AT command sequence:
1- ATI
Quectel
BG96
Revision: BG96MAR02A08M1G
OK
2- AT + CPIN?
- CPIN: READY
OK
3- AT + QSIMSTAT? - QSIMSTAT: 0,1
OK
4- AT + QCFG = “nwscanseq”, 010302.1
OK
5- AT + QCFG = “iotopmode”, 2,1
OK
6- AT + QCFG = “band”, 1,0,80000,1
OK
7- AT + QNWINFO - QNWINFO: “GSM”, “28601”, “GSM 900”, 36
OK
8- AT + CSQ - CSQ: 30.99
OK
9- AT + CGATT? - CGATT: 0
OK
10- AT + CREG = 1
OK
11- AT + CREG?
CREG: 1.1
OK
12- AT + CEREG?
CEREG: 0.4
OK
What is the difference between AT + CEREG and AT + CREG? Which can I tell if GSM900 connection can be provided?