I buy a BG95-M3 USB dongle module to study IoT feature. But I cannot connect to GSM network after insert China mobile SIM card. This SIM card support 2G network in China.
AT+CEREG? shows 0,4 and AT+QENG=“SERVINGCELL” shows NOCONN.
Could you please help to advise if there is exist special command to connect to network? TKS.
[13:47:22.684]发→◇AT+QGMR
□
[13:47:22.686]收←◆AT+QGMR
BG95M3LAR02A04_01.003.01.003
OK
[13:47:29.313]发→◇AT+QCFG=“nwscanmode”
□
[13:47:29.315]收←◆AT+QCFG=“nwscanmode”
+QCFG: “nwscanmode”,1
OK
[13:47:35.429]发→◇AT+CSQ
□
[13:47:35.431]收←◆AT+CSQ
+CSQ: 17,99
OK
[13:47:36.497]发→◇AT+QNWINFO
□
[13:47:36.499]收←◆AT+QNWINFO
+QNWINFO: “EDGE”,“46000”,“GSM 900”,50
OK
[13:47:37.481]发→◇AT+QENG=“SERVINGCELL”
□
[13:47:37.485]收←◆AT+QENG=“SERVINGCELL”
+QENG: “servingcell”,“NOCONN”,“GSM”,460,00,3375,9DF9,3,50,-79,255,255,0,24,134,1,
OK
[13:47:44.730]发→◇AT+CGDCONT?
□
[13:47:44.737]收←◆AT+CGDCONT?
+CGDCONT: 1,“IP”,“cmnet”,“0.0.0.0”,0,0,0
OK
[13:47:48.198]发→◇AT+QIACT?
□
[13:47:48.201]收←◆AT+QIACT?
OK
[13:47:58.886]发→◇AT+CEREG?
□
[13:47:58.889]收←◆AT+CEREG?
+CEREG: 0,4
OK