I am having problems with EG91-AUX module, already tryed with 2 modules.
The module registers to network, but does not give any answer for +cgdcont or +qicsgp command, nor to some +eng commands.
[2021-10-27 11:15:42:628_S:] AT+CFUN=0
[2021-10-27 11:15:42:640_R:] AT+CFUN=0
[2021-10-27 11:15:43:937_R:] OK
[2021-10-27 11:15:49:461_S:] AT+CFUN=1
[2021-10-27 11:15:49:474_R:] AT+CFUN=1
[2021-10-27 11:15:49:796_R:] OK
[2021-10-27 11:15:58:479_S:] ATI
[2021-10-27 11:15:58:489_R:] ATI
[2021-10-27 11:15:58:499_R:] Quectel
[2021-10-27 11:15:58:499_R:] EG91
[2021-10-27 11:15:58:499_R:] Revision: EG91AUXGAR08A02M1G
[2021-10-27 11:15:58:499_R:] OK
[2021-10-27 11:16:06:592_S:] AT+COPS?
[2021-10-27 11:16:06:606_R:] AT+COPS?
[2021-10-27 11:16:06:615_R:] +COPS: 0,0,“VIVO VIVO”,2
[2021-10-27 11:16:06:615_R:] OK
[2021-10-27 11:16:14:413_S:] AT+CEREG?
[2021-10-27 11:16:14:423_R:] AT+CEREG?
[2021-10-27 11:16:14:434_R:] +CEREG: 0,4
[2021-10-27 11:16:14:434_R:] OK
[2021-10-27 11:17:20:629_S:] AT+CREG?
[2021-10-27 11:17:20:639_R:] AT+CREG?
[2021-10-27 11:17:20:650_R:] +CREG: 0,1
[2021-10-27 11:17:20:650_R:] OK
[2021-10-27 11:17:25:179_S:] AT+CGREG?
[2021-10-27 11:17:25:196_R:] AT+CGREG?
[2021-10-27 11:17:25:213_R:] +CGREG: 0,1
[2021-10-27 11:17:25:213_R:] OK
[2021-10-27 11:17:57:278_S:] AT+CSQ
[2021-10-27 11:17:57:288_R:] AT+CSQ
[2021-10-27 11:17:57:298_R:] +CSQ: 15,99
[2021-10-27 11:17:57:298_R:] OK
[2021-10-27 11:18:00:535_S:] AT+CPIN?
[2021-10-27 11:18:00:543_R:] AT+CPIN?
[2021-10-27 11:18:00:543_R:] +CPIN: READY
[2021-10-27 11:18:00:543_R:] OK
[2021-10-27 11:18:27:230_S:] AT+CENG=“servingcell”
[2021-10-27 11:18:36:370_S:] AT+QENG=“servingcell”
[2021-10-27 11:18:37:094_S:] AT+QENG=“servingcell”
[2021-10-27 11:18:41:259_S:] AT+QENG=“servingcell”
[2021-10-27 11:19:03:471_R:] AT+QNWINFO
[2021-10-27 11:19:03:481_R:] +QNWINFO: “HSPA+”,“72406”,“WCDMA 2100”,10811
[2021-10-27 11:19:03:481_R:] OK
[2021-10-27 11:19:24:560_S:] AT+QCFG=“nwscanmode”
[2021-10-27 11:19:25:615_S:] AT+QCFG=“nwscanmode”
[2021-10-27 11:19:33:581_S:] AT+CSQ
[2021-10-27 11:19:33:591_R:] AT+CSQ
[2021-10-27 11:19:33:601_R:] +CSQ: 10,99
[2021-10-27 11:19:33:601_R:] OK
[2021-10-27 11:25:47:146_S:] AT+CGDCONT?
[2021-10-27 11:25:47:156_R:] AT+CGDCONT?
[2021-10-27 11:25:47:175_R:] +CGDCONT: 1,“IPV4V6”,"",“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
[2021-10-27 11:25:47:219_R:] OK
[2021-10-27 11:26:21:857_S:] AT+CGDCONT=1,“IP”,“zap.vivo.com.br”
[2021-10-27 11:26:23:227_S:] AT+CGDCONT=1,“IP”,“zap.vivo.com.br”
[2021-10-27 11:26:23:596_S:] AT+CGDCONT=1,“IP”,“zap.vivo.com.br”
[2021-10-27 11:26:23:926_S:] AT+CGDCONT=1,“IP”,“zap.vivo.com.br”
[2021-10-27 11:26:37:828_S:] AT+CGDCONT?
[2021-10-27 11:26:37:842_R:] AT+CGDCONT?
[2021-10-27 11:26:37:842_R:] +CGDCONT: 1,“IPV4V6”,"",“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
[2021-10-27 11:26:37:842_R:] OK
[2021-10-27 11:26:54:432_S:] AT+CGDCONT=1,“IPV4”,“zap.vivo.com.br”
[2021-10-27 11:26:57:314_S:] AT+CGDCONT=1,“IPV4”,“zap.vivo.com.br”
[2021-10-27 11:27:00:148_S:] AT+CGDCONT=1,“IPV4”
[2021-10-27 11:27:02:215_S:] AT+CGDCONT=1,“IP”
[2021-10-27 11:27:06:262_S:] AT+CGDCONT?
[2021-10-27 11:27:06:277_R:] AT+CGDCONT?
[2021-10-27 11:27:06:277_R:] +CGDCONT: 1,“IPV4V6”,"",“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
[2021-10-27 11:27:06:277_R:] OK
[2021-10-27 11:27:57:165_S:] AT+QICSGP=1,1,“ZAP.VIVO.COM.BR”,"","",0
[2021-10-27 11:28:15:003_S:] AT+QICSGP=1,1,“zap.vivo.com.br”,"","",0
[2021-10-27 11:29:33:085_S:] AT+QICSGP=1,1,“zap.vivo.com.br”
[2021-10-27 11:29:43:278_S:] AT+CSQ
[2021-10-27 11:29:43:288_R:] AT+CSQ
[2021-10-27 11:29:43:311_R:] +CSQ: 8,99
[2021-10-27 11:29:43:311_R:] OK
[2021-10-27 11:29:53:449_S:] AT+CPIN?
[2021-10-27 11:29:53:458_R:] AT+CPIN?
[2021-10-27 11:29:53:458_R:] +CPIN: READY
[2021-10-27 11:29:53:458_R:] OK