I have a Quectel BG96 modem (which is LTE Cat M1/LTE Cat NB-IoT/EGPRS) . I inserted the Hologram SIM and it always gives me “registration denied” and I can not register on the AT&T network.
what is the problem? and how this can be fixed?
Please see the output of the AT commands below and here what it suggests the BG96 configurations:
1- GSM/LTE registration is denied and on EGPRS registraiton is unknow.
2- Signal quality is good (+CSQ: 13,99)
3- APN name: m2m.com.attz
4- NWSCANSEQ 020301 (LTE Cat M1 -> LTE Cat NB1 -> GSM)
5- NWSCANMODE is 0 (Automatic (GSM/LTE)
6- IOTOPMODE 1 (LTE Cat NB1)
7- BAND (All frequency bands)
8 COPS: 0 (Automatic Network selection)
[2019-07-14 16:19:36:035_S:] ATI
[2019-07-14 16:19:36:035_R:] ATI
[2019-07-14 16:19:36:035_R:] Quectel
[2019-07-14 16:19:36:035_R:] BG96
[2019-07-14 16:19:36:035_R:] Revision: BG96MAR02A07M1G
[2019-07-14 16:19:36:035_R:] OK
[2019-07-14 16:19:39:203_S:] AT+GSN
[2019-07-14 16:19:39:203_R:] AT+GSN
[2019-07-14 16:19:39:203_R:] 866425031237797
[2019-07-14 16:19:39:203_R:] OK
[2019-07-14 16:19:42:055_S:] AT+QCCID
[2019-07-14 16:19:42:055_R:] AT+QCCID
[2019-07-14 16:19:42:055_R:] +QCCID: 8944500105191492027F
[2019-07-14 16:19:42:055_R:] OK
[2019-07-14 16:19:43:938_S:] AT+CSQ
[2019-07-14 16:19:43:938_R:] AT+CSQ
[2019-07-14 16:19:43:938_R:] +CSQ: 13,99
[2019-07-14 16:19:43:938_R:] OK
[2019-07-14 16:19:45:098_S:] AT+CPIN?
[2019-07-14 16:19:45:098_R:] AT+CPIN?
[2019-07-14 16:19:45:098_R:] +CPIN: READY
[2019-07-14 16:19:45:098_R:] OK
[2019-07-14 16:19:46:730_S:] AT+CREG?
[2019-07-14 16:19:46:730_R:] AT+CREG?
[2019-07-14 16:19:46:730_R:] +CREG: 1,3
[2019-07-14 16:19:46:730_R:] OK
[2019-07-14 16:19:48:359_S:] AT+CGREG?
[2019-07-14 16:19:48:359_R:] AT+CGREG?
[2019-07-14 16:19:48:359_R:] +CGREG: 1,4
[2019-07-14 16:19:48:359_R:] OK
[2019-07-14 16:19:51:465_S:] AT+CEREG?
[2019-07-14 16:19:51:465_R:] AT+CEREG?
[2019-07-14 16:19:51:465_R:] +CEREG: 1,3
[2019-07-14 16:19:51:465_R:] OK
[2019-07-14 16:19:55:289_S:] AT+qcfg=“NWSCANSEQ”?
[2019-07-14 16:19:55:289_R:] AT+qcfg=“NWSCANSEQ”?
[2019-07-14 16:19:55:289_R:] +QCFG: “nwscanseq”,020301
[2019-07-14 16:19:55:289_R:] OK
[2019-07-14 16:19:56:748_S:] AT+qcfg=“NWSCANMODE”?
[2019-07-14 16:19:56:748_R:] AT+qcfg=“NWSCANMODE”?
[2019-07-14 16:19:56:748_R:] +QCFG: “nwscanmode”,0
[2019-07-14 16:19:56:748_R:] OK
[2019-07-14 16:19:57:847_S:] AT+qcfg=“IOTOPMODE”?
[2019-07-14 16:19:57:862_R:] AT+qcfg=“IOTOPMODE”?
[2019-07-14 16:19:57:862_R:] +QCFG: “iotopmode”,1
[2019-07-14 16:19:57:862_R:] OK
[2019-07-14 16:19:58:912_S:] AT+QCFG = “BAND”?
[2019-07-14 16:19:58:912_R:] AT+QCFG = “BAND”?
[2019-07-14 16:19:58:912_R:] +QCFG: “band”,0xf,0x400a0e189f,0xa0e189f
[2019-07-14 16:19:58:912_R:] OK
[2019-07-14 16:20:03:866_S:] AT+COPS?
[2019-07-14 16:20:03:866_R:] AT+COPS?
[2019-07-14 16:20:03:866_R:] +COPS: 0
[2019-07-14 16:20:03:866_R:] OK
[2019-07-14 16:20:05:019_S:] AT+CPOL?
[2019-07-14 16:20:05:021_R:] AT+CPOL?
[2019-07-14 16:20:05:022_R:] OK
[2019-07-14 16:20:07:474_S:] AT+CGDCONT?
[2019-07-14 16:20:07:474_R:] AT+CGDCONT?
[2019-07-14 16:20:07:474_R:] +CGDCONT: 1,“IP”,“m2m.com.attz”,“0.0.0.0”,0,0,0,0
[2019-07-14 16:20:07:474_R:] OK