Greetings,
I am currently working with the RM500Q-GL module, mounted on the RMU500-EKNM EVB-Kit base board.
The issue I am experiencing is that the device is unable to establish a connection to the 5G network, connecting only to 4G/LTE.
I am attaching the log corresponding to the tests performed.
/* Start AT SYNC: Send AT every 500ms, if receive OK, SYNC success, if no OK return after sending AT 10 times, SYNC fail */
[2026-02-18 17:22:50:163_S:] AT
[2026-02-18 17:22:50:693_S:] AT
[2026-02-18 17:22:51:213_S:] AT
[2026-02-18 17:22:51:733_S:] AT
[2026-02-18 17:22:52:253_S:] AT
[2026-02-18 17:22:52:758_S:] AT
[2026-02-18 17:22:53:043_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:22:53:108_R:] +CPIN: READY
[2026-02-18 17:22:53:108_R:] +QUSIM: 1
[2026-02-18 17:22:53:193_R:] +CFUN: 1
[2026-02-18 17:22:53:253_R:] DSR:0 CTS:0 (RI:0) DCD:0
[2026-02-18 17:22:53:283_S:] AT
[2026-02-18 17:22:53:403_R:] AT
[2026-02-18 17:22:53:403_R:] OK
[2026-02-18 17:22:53:423_S:] ATI
[2026-02-18 17:22:53:483_R:] ATI
[2026-02-18 17:22:53:483_R:] Quectel
[2026-02-18 17:22:53:483_R:] RM500Q-GL
[2026-02-18 17:22:53:483_R:] Revision: RM500QGLABR11A02M4G
[2026-02-18 17:22:53:483_R:] OK
[2026-02-18 17:22:53:498_S:] ATI
[2026-02-18 17:22:53:563_R:] ATI
[2026-02-18 17:22:53:563_R:] Quectel
[2026-02-18 17:22:53:563_R:] RM500Q-GL
[2026-02-18 17:22:53:563_R:] Revision: RM500QGLABR11A02M4G
[2026-02-18 17:22:53:563_R:] OK
[2026-02-18 17:22:53:563_R:] +QIND: SMS DONE
/* Use ATV1 to set the response format */
[2026-02-18 17:22:53:583_S:] ATV1
[2026-02-18 17:22:53:593_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:22:53:643_R:] ATV1
[2026-02-18 17:22:53:643_R:] OK
[2026-02-18 17:22:53:648_R:] DSR:0 CTS:0 (RI:0) DCD:0
/* Use ATE1 to enable echo mode */
[2026-02-18 17:22:53:908_S:] ATE1
[2026-02-18 17:22:53:973_R:] ATE1
[2026-02-18 17:22:53:973_R:] OK
[2026-02-18 17:22:53:973_R:] RDY
/* Use AT+CMEE=2 to enable result code and use verbose values */
[2026-02-18 17:22:54:113_S:] AT+CMEE=2
[2026-02-18 17:22:54:193_R:] AT+CMEE=2
[2026-02-18 17:22:54:193_R:] OK
/* Get the baudrate, if the value is 0 (auto baudrate), then it will be set to 115200 (fixed baudrate) to assure reliable communication and avoid any problems caused by undetermined baudrate between DCE and DTE, value of IPR should be saved with AT&W */
[2026-02-18 17:22:54:433_S:] AT+IPR?
[2026-02-18 17:22:54:493_R:] AT+IPR?
[2026-02-18 17:22:54:493_R:] +IPR: 115200
[2026-02-18 17:22:54:493_R:] OK
/* Use ATI to get module information of Manufacturer ID, Device module and Firmware version */
[2026-02-18 17:22:54:553_S:] ATI
[2026-02-18 17:22:54:593_R:] +QIND: PB DONE
[2026-02-18 17:22:54:608_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:22:54:668_R:] ATI
[2026-02-18 17:22:54:668_R:] Quectel
[2026-02-18 17:22:54:668_R:] RM500Q-GL
[2026-02-18 17:22:54:668_R:] Revision: RM500QGLABR11A02M4G
[2026-02-18 17:22:54:668_R:] OK
/* Use AT+GSN to query the IMEI of module */
[2026-02-18 17:22:54:783_S:] AT+GSN
[2026-02-18 17:22:54:798_R:] DSR:0 CTS:0 (RI:0) DCD:0
[2026-02-18 17:22:54:863_R:] AT+GSN
[2026-02-18 17:22:54:863_R:] 863305040288820
[2026-02-18 17:22:54:863_R:] OK
[2026-02-18 17:22:54:863_S:] AT+QURCCFG="URCPORT","usbmodem"
[2026-02-18 17:22:54:943_R:] AT+QURCCFG="URCPORT","usbmodem"
[2026-02-18 17:22:54:943_R:] OK
/* Use AT+CPIN? to query the SIM card status : SIM card inserted or not, locked or unlocked */
[2026-02-18 17:22:55:483_S:] AT+CPIN?
[2026-02-18 17:22:55:543_R:] AT+CPIN?
[2026-02-18 17:22:55:543_R:] +CPIN: READY
[2026-02-18 17:22:55:543_R:] OK
/* Use AT+CIMI to query the IMSI of SIM card */
[2026-02-18 17:22:55:663_S:] AT+CIMI
[2026-02-18 17:22:55:723_R:] AT+CIMI
[2026-02-18 17:22:55:723_R:] 730090066283778
[2026-02-18 17:22:55:723_R:] OK
/* Use AT+QCCID to query ICCID number of SIM card */
[2026-02-18 17:22:55:893_S:] AT+QCCID
[2026-02-18 17:22:55:953_R:] AT+QCCID
[2026-02-18 17:22:55:953_R:] +QCCID: 89560900000662837788
[2026-02-18 17:22:55:953_R:] OK
/* Use AT+CSQ to query current signal quality */
[2026-02-18 17:22:56:008_S:] AT+CSQ
[2026-02-18 17:22:56:073_R:] AT+CSQ
[2026-02-18 17:22:56:073_R:] +CSQ: 18,99
[2026-02-18 17:22:56:073_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:22:56:083_S:] AT+CREG?
[2026-02-18 17:22:56:143_R:] AT+CREG?
[2026-02-18 17:22:56:143_R:] +CREG: 0,1
[2026-02-18 17:22:56:143_R:] OK
[2026-02-18 17:22:56:158_S:] AT+CGREG?
[2026-02-18 17:22:56:223_R:] AT+CGREG?
[2026-02-18 17:22:56:223_R:] +CGREG: 0,0
[2026-02-18 17:22:56:223_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:22:58:278_S:] AT+CREG?
[2026-02-18 17:22:58:339_R:] AT+CREG?
[2026-02-18 17:22:58:339_R:] +CREG: 0,1
[2026-02-18 17:22:58:339_R:] OK
[2026-02-18 17:22:58:358_S:] AT+CGREG?
[2026-02-18 17:22:58:413_R:] AT+CGREG?
[2026-02-18 17:22:58:413_R:] +CGREG: 0,0
[2026-02-18 17:22:58:413_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:00:487_S:] AT+CREG?
[2026-02-18 17:23:00:563_R:] AT+CREG?
[2026-02-18 17:23:00:563_R:] +CREG: 0,1
[2026-02-18 17:23:00:563_R:] OK
[2026-02-18 17:23:00:578_S:] AT+CGREG?
[2026-02-18 17:23:00:643_R:] AT+CGREG?
[2026-02-18 17:23:00:643_R:] +CGREG: 0,0
[2026-02-18 17:23:00:643_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:02:689_S:] AT+CREG?
[2026-02-18 17:23:05:713_S:] AT+CGREG?
[2026-02-18 17:23:09:623_R:] +CPIN: READY
[2026-02-18 17:23:09:623_R:] +QUSIM: 1
[2026-02-18 17:23:09:663_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:23:09:713_R:] +CFUN: 1
[2026-02-18 17:23:09:783_R:] DSR:0 CTS:0 (RI:0) DCD:0
[2026-02-18 17:23:10:013_R:] AT+CGREG?
[2026-02-18 17:23:10:013_R:] +CGREG: 0,0
[2026-02-18 17:23:10:013_R:] OK
[2026-02-18 17:23:10:093_R:] +QIND: SMS DONE
[2026-02-18 17:23:10:533_R:] RDY
[2026-02-18 17:23:11:073_R:] +QIND: PB DONE
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:12:043_S:] AT+CREG?
[2026-02-18 17:23:12:123_R:] AT+CREG?
[2026-02-18 17:23:12:123_R:] +CREG: 0,1
[2026-02-18 17:23:12:123_R:] OK
[2026-02-18 17:23:12:140_S:] AT+CGREG?
[2026-02-18 17:23:12:203_R:] AT+CGREG?
[2026-02-18 17:23:12:203_R:] +CGREG: 0,0
[2026-02-18 17:23:12:203_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:14:293_S:] AT+CREG?
[2026-02-18 17:23:14:363_R:] AT+CREG?
[2026-02-18 17:23:14:363_R:] +CREG: 0,1
[2026-02-18 17:23:14:363_R:] OK
[2026-02-18 17:23:14:384_S:] AT+CGREG?
[2026-02-18 17:23:14:463_R:] AT+CGREG?
[2026-02-18 17:23:14:463_R:] +CGREG: 0,0
[2026-02-18 17:23:14:463_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:16:533_S:] AT+CREG?
[2026-02-18 17:23:16:603_R:] AT+CREG?
[2026-02-18 17:23:16:603_R:] +CREG: 0,1
[2026-02-18 17:23:16:603_R:] OK
[2026-02-18 17:23:16:623_S:] AT+CGREG?
[2026-02-18 17:23:16:703_R:] AT+CGREG?
[2026-02-18 17:23:16:703_R:] +CGREG: 0,0
[2026-02-18 17:23:16:703_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:18:773_S:] AT+CREG?
[2026-02-18 17:23:18:843_R:] AT+CREG?
[2026-02-18 17:23:18:843_R:] +CREG: 0,1
[2026-02-18 17:23:18:843_R:] OK
[2026-02-18 17:23:18:863_S:] AT+CGREG?
[2026-02-18 17:23:18:943_R:] AT+CGREG?
[2026-02-18 17:23:18:943_R:] +CGREG: 0,0
[2026-02-18 17:23:18:943_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:21:003_S:] AT+CREG?
[2026-02-18 17:23:21:073_R:] AT+CREG?
[2026-02-18 17:23:21:073_R:] +CREG: 0,1
[2026-02-18 17:23:21:073_R:] OK
[2026-02-18 17:23:21:093_S:] AT+CGREG?
[2026-02-18 17:23:21:173_R:] AT+CGREG?
[2026-02-18 17:23:21:173_R:] +CGREG: 0,0
[2026-02-18 17:23:21:173_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2026-02-18 17:23:23:243_S:] AT+CREG?
[2026-02-18 17:23:23:323_R:] AT+CREG?
[2026-02-18 17:23:23:323_R:] +CREG: 0,1
[2026-02-18 17:23:23:323_R:] OK
[2026-02-18 17:23:23:343_S:] AT+CGREG?
[2026-02-18 17:23:23:423_R:] AT+CGREG?
[2026-02-18 17:23:23:423_R:] +CGREG: 0,0
[2026-02-18 17:23:23:423_R:] OK
/* Make sure the Antenna is connected and the network is normal */
[2026-02-18 17:23:34:673_S:] AT+CFUN=0
[2026-02-18 17:23:34:743_R:] AT+CFUN=0
[2026-02-18 17:23:35:523_R:] OK
[2026-02-18 17:23:41:833_S:] AT+QNWCFG="csi_ctrl",0,1
[2026-02-18 17:23:41:903_R:] AT+QNWCFG="csi_ctrl",0,1
[2026-02-18 17:23:41:903_R:] OK
[2026-02-18 17:23:43:193_S:] AT+QNWCFG="nr5g_csi"
[2026-02-18 17:23:43:263_R:] AT+QNWCFG="nr5g_csi"
[2026-02-18 17:23:43:263_R:] +QNWCFG: "nr5g_csi",0,1,10,8,36,8,0
[2026-02-18 17:23:43:263_R:] OK
[2026-02-18 17:23:45:033_S:] AT+QNWPREFCFG="nr5g_disable_mode",0
[2026-02-18 17:23:45:103_R:] AT+QNWPREFCFG="nr5g_disable_mode",0
[2026-02-18 17:23:45:103_R:] OK
[2026-02-18 17:23:45:833_S:] AT+QNWPREFCFG="mode_pref",NR5G:LTE
[2026-02-18 17:23:45:903_R:] AT+QNWPREFCFG="mode_pref",NR5G:LTE
[2026-02-18 17:23:45:903_R:] OK
[2026-02-18 17:23:46:833_S:] AT+QNWPREFCFG="nr5g_band"
[2026-02-18 17:23:46:903_R:] AT+QNWPREFCFG="nr5g_band"
[2026-02-18 17:23:46:903_R:] +QNWPREFCFG: "nr5g_band",1:2:3:5:7:8:12:20:25:28:38:40:41:48:66:71:77:78:79
[2026-02-18 17:23:46:903_R:] OK
[2026-02-18 17:23:48:523_S:] AT+QNWPREFCFG="lte_band"
[2026-02-18 17:23:48:593_R:] AT+QNWPREFCFG="lte_band"
[2026-02-18 17:23:48:593_R:] +QNWPREFCFG: "lte_band",1:2:3:4:5:7:8:12:13:14:17:18:19:20:25:26:28:29:30:32:34:38:39:40:41:42:43:46:48:66:71
[2026-02-18 17:23:48:593_R:] OK
[2026-02-18 17:23:52:233_S:] AT+CFUN=1
[2026-02-18 17:23:52:313_R:] AT+CFUN=1
[2026-02-18 17:23:52:573_R:] OK
[2026-02-18 17:23:52:853_R:] +CPIN: READY
[2026-02-18 17:23:52:853_R:] +QUSIM: 1
[2026-02-18 17:23:53:333_R:] +QIND: SMS DONE
[2026-02-18 17:23:54:073_S:] AT+C5GREG=2
[2026-02-18 17:23:54:133_R:] AT+C5GREG=2
[2026-02-18 17:23:54:133_R:] OK
[2026-02-18 17:23:54:293_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:23:54:353_R:] +QIND: PB DONE
[2026-02-18 17:23:54:413_R:] DSR:0 CTS:0 (RI:0) DCD:0
[2026-02-18 17:23:57:933_S:] AT+QENG="servingcell"
[2026-02-18 17:23:57:993_R:] AT+QENG="servingcell"
[2026-02-18 17:23:58:093_R:] +QENG: "servingcell","NOCONN"
[2026-02-18 17:23:58:093_R:] +QENG: "LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-114,-20,-75,6,8,130,-
[2026-02-18 17:23:58:093_R:] +QENG:"NR5G-NSA",730,09,359,-97,14,-11,641664,77
[2026-02-18 17:23:58:093_R:] OK
[2026-02-18 17:23:59:183_S:] AT+QENG="servingcell"
[2026-02-18 17:23:59:248_R:] AT+QENG="servingcell"
[2026-02-18 17:23:59:343_R:] +QENG: "servingcell","NOCONN"
[2026-02-18 17:23:59:343_R:] +QENG: "LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-115,-20,-76,7,5,80,-
[2026-02-18 17:23:59:343_R:] +QENG:"NR5G-NSA",730,09,359,-97,14,-11,641664,77
[2026-02-18 17:23:59:343_R:] OK
[2026-02-18 17:23:59:993_S:] AT+QNWINFO
[2026-02-18 17:24:00:056_R:] AT+QNWINFO
[2026-02-18 17:24:00:056_R:] +QNWINFO: "FDD LTE","73009","LTE BAND 66",1200
[2026-02-18 17:24:00:056_R:] OK
[2026-02-18 17:24:01:073_S:] AT+QENG="servingcell"
[2026-02-18 17:24:01:138_R:] AT+QENG="servingcell"
[2026-02-18 17:24:01:238_R:] +QENG: "servingcell","NOCONN"
[2026-02-18 17:24:01:238_R:] +QENG: "LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-115,-20,-76,7,6,200,-
[2026-02-18 17:24:01:238_R:] +QENG:"NR5G-NSA",730,09,359,-97,15,-11,641664,77
[2026-02-18 17:24:01:238_R:] OK
[2026-02-18 17:24:02:158_S:] AT+QENG="servingcell"
[2026-02-18 17:24:02:223_R:] AT+QENG="servingcell"
[2026-02-18 17:24:02:318_R:] +QENG: "servingcell","NOCONN"
[2026-02-18 17:24:02:318_R:] +QENG: "LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-115,-20,-73,7,5,200,-
[2026-02-18 17:24:02:318_R:] +QENG:"NR5G-NSA",730,09,359,-97,15,-11,641664,77
[2026-02-18 17:24:02:318_R:] OK
[2026-02-18 17:24:04:703_S:] AT+QENG="servingcell"
[2026-02-18 17:24:04:773_R:] AT+QENG="servingcell"
[2026-02-18 17:24:04:873_R:] +QENG: "servingcell","NOCONN"
[2026-02-18 17:24:04:873_R:] +QENG: "LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-115,-20,-73,7,4,190,-
[2026-02-18 17:24:04:873_R:] +QENG:"NR5G-NSA",730,09,359,-97,15,-11,641664,77
[2026-02-18 17:24:04:873_R:] OK
[2026-02-18 17:24:06:478_S:] AT+QNWINFO
[2026-02-18 17:24:06:553_R:] AT+QNWINFO
[2026-02-18 17:24:06:553_R:] +QNWINFO: "FDD LTE","73009","LTE BAND 66",1200
[2026-02-18 17:24:06:553_R:] OK
[2026-02-18 17:24:07:343_S:] AT+QENG="servingcell"
[2026-02-18 17:24:07:413_R:] AT+QENG="servingcell"
[2026-02-18 17:24:07:513_R:] +QENG: "servingcell","NOCONN","LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-115,-20,-75,7,0,200,-
[2026-02-18 17:24:07:513_R:] OK
[2026-02-18 17:24:08:313_S:] AT+QENG="servingcell"
[2026-02-18 17:24:08:368_R:] AT+QENG="servingcell"
[2026-02-18 17:24:08:478_R:] +QENG: "servingcell","NOCONN","LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-115,-20,-73,7,0,190,-
[2026-02-18 17:24:08:478_R:] OK
[2026-02-18 17:24:09:583_S:] AT+QNWINFO
[2026-02-18 17:24:09:643_R:] AT+QNWINFO
[2026-02-18 17:24:09:643_R:] +QNWINFO: "FDD LTE","73009","LTE BAND 66",1200
[2026-02-18 17:24:09:643_R:] OK
[2026-02-18 17:24:10:673_S:] AT+QGMR
[2026-02-18 17:24:10:733_R:] AT+QGMR
[2026-02-18 17:24:10:733_R:] RM500QGLABR11A02M4G_01.001.01.001
[2026-02-18 17:24:10:733_R:] OK
[2026-02-18 17:24:13:208_S:] AT+C5GREG?
[2026-02-18 17:24:13:263_R:] AT+C5GREG?
[2026-02-18 17:24:13:263_R:] +C5GREG: 2,0
[2026-02-18 17:24:13:263_R:] OK
[2026-02-18 17:24:25:983_S:] AT+CGACT=1,1
[2026-02-18 17:24:26:053_R:] AT+CGACT=1,1
[2026-02-18 17:24:26:053_R:] OK
[2026-02-18 17:24:32:983_S:] AT+CGACT=1,"8.8.8.8"
[2026-02-18 17:24:33:043_R:] AT+CGACT=1,"8.8.8.8"
[2026-02-18 17:24:33:043_R:] ERROR
[2026-02-18 17:24:40:673_S:] AT+QPING=1,"8.8.8.8"
[2026-02-18 17:24:40:733_R:] AT+QPING=1,"8.8.8.8"
[2026-02-18 17:24:40:733_R:] OK
[2026-02-18 17:27:27:613_R:] +CPIN: READY
[2026-02-18 17:27:27:613_R:] +QUSIM: 1
[2026-02-18 17:27:27:630_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:27:27:682_R:] +CFUN: 1
[2026-02-18 17:27:27:742_R:] DSR:0 CTS:0 (RI:0) DCD:0
[2026-02-18 17:27:28:089_R:] +QIND: SMS DONE
[2026-02-18 17:27:28:492_R:] RDY
[2026-02-18 17:27:29:013_R:] +QIND: PB DONE
[2026-02-18 17:33:00:043_S:] AT+CGDCONT
[2026-02-18 17:33:00:113_R:] AT+CGDCONT
[2026-02-18 17:33:00:113_R:] OK
[2026-02-18 17:33:04:218_S:] AT+CGDCONT?
[2026-02-18 17:33:04:283_R:] AT+CGDCONT?
[2026-02-18 17:33:04:283_R:] +CGDCONT: 1,"IPV4V6","","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0,,,,,,,,,"",,,,0
[2026-02-18 17:33:04:283_R:] +CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0,,,,,,,,,"",,,,0
[2026-02-18 17:33:04:283_R:] +CGDCONT: 3,"IPV4V6","sos","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1,,,,,,,,,"",,,,0
[2026-02-18 17:33:04:283_R:] OK
[2026-02-18 17:33:34:483_S:] AT+CFUN=0
[2026-02-18 17:33:34:563_R:] AT+CFUN=0
[2026-02-18 17:33:35:783_R:] OK
[2026-02-18 17:33:40:329_S:] AT+CFUN=1
[2026-02-18 17:33:40:388_R:] AT+CFUN=1
[2026-02-18 17:33:40:663_R:] OK
[2026-02-18 17:33:40:897_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:33:40:963_R:] +CPIN: READY
[2026-02-18 17:33:40:963_R:] +QUSIM: 1
[2026-02-18 17:33:41:023_R:] DSR:0 CTS:0 (RI:0) DCD:0
[2026-02-18 17:33:41:448_R:] +QIND: SMS DONE
[2026-02-18 17:33:42:487_R:] +QIND: PB DONE
[2026-02-18 17:33:48:223_S:] AT+C5GREG?
[2026-02-18 17:33:48:293_R:] AT+C5GREG?
[2026-02-18 17:33:48:293_R:] +C5GREG: 0,0
[2026-02-18 17:33:48:293_R:] OK
[2026-02-18 17:33:50:043_S:] AT+C5GREG=2
[2026-02-18 17:33:50:113_R:] AT+C5GREG=2
[2026-02-18 17:33:50:113_R:] OK
[2026-02-18 17:33:51:303_S:] AT+C5GREG?
[2026-02-18 17:33:51:373_R:] AT+C5GREG?
[2026-02-18 17:33:51:373_R:] +C5GREG: 2,0
[2026-02-18 17:33:51:373_R:] OK
[2026-02-18 17:33:53:123_S:] AT+QENG="servingcell"
[2026-02-18 17:33:53:183_R:] AT+QENG="servingcell"
[2026-02-18 17:33:53:301_R:] +QENG: "servingcell","NOCONN"
[2026-02-18 17:33:53:301_R:] +QENG: "LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-113,-20,-75,7,4,200,-
[2026-02-18 17:33:53:301_R:] +QENG:"NR5G-NSA",730,09,359,-97,13,-11,641664,77
[2026-02-18 17:33:53:301_R:] OK
[2026-02-18 17:33:54:873_S:] AT+QNWINFO
[2026-02-18 17:33:54:953_R:] AT+QNWINFO
[2026-02-18 17:33:54:953_R:] +QNWINFO: "FDD LTE","73009","LTE BAND 66",1200
[2026-02-18 17:33:54:953_R:] OK
[2026-02-18 17:33:56:763_S:] AT+QENG="servingcell"
[2026-02-18 17:33:56:833_R:] AT+QENG="servingcell"
[2026-02-18 17:33:56:933_R:] +QENG: "servingcell","NOCONN","LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-113,-19,-75,7,0,170,-
[2026-02-18 17:33:56:933_R:] OK
[2026-02-18 17:34:19:793_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2026-02-18 17:34:19:853_R:] +CPIN: READY
[2026-02-18 17:34:19:853_R:] +QUSIM: 1
[2026-02-18 17:34:19:953_R:] +CFUN: 1
[2026-02-18 17:34:20:003_R:] DSR:0 CTS:0 (RI:0) DCD:0
[2026-02-18 17:34:20:343_R:] +QIND: SMS DONE
[2026-02-18 17:34:20:763_R:] RDY
[2026-02-18 17:34:21:323_R:] +QIND: PB DONE
[2026-02-18 17:36:53:114_S:] AT+CGDCONT=1,"IP","wap.nextelmovil.cl"
[2026-02-18 17:36:53:185_R:] AT+CGDCONT=1,"IP","wap.nextelmovil.cl"
[2026-02-18 17:36:53:185_R:] OK
[2026-02-18 17:36:55:425_S:] AT+CFUN=0
[2026-02-18 17:36:55:496_R:] AT+CFUN=0
[2026-02-18 17:36:57:006_R:] OK
[2026-02-18 17:36:58:080_S:] AT+CFUN=1
[2026-02-18 17:36:58:155_R:] AT+CFUN=1
[2026-02-18 17:36:58:425_R:] OK
[2026-02-18 17:36:58:706_R:] +CPIN: READY
[2026-02-18 17:36:58:706_R:] +QUSIM: 1
[2026-02-18 17:36:59:206_R:] +QIND: SMS DONE
[2026-02-18 17:37:00:234_R:] +QIND: PB DONE
[2026-02-18 17:37:04:095_S:] AT+CGDCONT?
[2026-02-18 17:37:04:165_R:] AT+CGDCONT?
[2026-02-18 17:37:04:165_R:] +CGDCONT: 1,"IP","wap.nextelmovil.cl","0.0.0.0",0,0,0,0,,,,,,,,,"",,,,0
[2026-02-18 17:37:04:165_R:] +CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0,,,,,,,,,"",,,,0
[2026-02-18 17:37:04:165_R:] +CGDCONT: 3,"IPV4V6","sos","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1,,,,,,,,,"",,,,0
[2026-02-18 17:37:04:165_R:] OK
[2026-02-18 17:37:12:885_S:] AT+C5GREG=2
[2026-02-18 17:37:12:955_R:] AT+C5GREG=2
[2026-02-18 17:37:12:955_R:] OK
[2026-02-18 17:37:14:145_S:] AT+C5GREG?
[2026-02-18 17:37:14:216_R:] AT+C5GREG?
[2026-02-18 17:37:14:216_R:] +C5GREG: 2,0
[2026-02-18 17:37:14:216_R:] OK
[2026-02-18 17:37:15:775_S:] AT+QENG="servingcell"
[2026-02-18 17:37:15:836_R:] AT+QENG="servingcell"
[2026-02-18 17:37:15:996_R:] +QENG: "servingcell","NOCONN"
[2026-02-18 17:37:15:996_R:] +QENG: "LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-113,-19,-72,7,0,120,-
[2026-02-18 17:37:15:996_R:] +QENG:"NR5G-NSA",730,09,359,-102,15,-11,641664,77
[2026-02-18 17:37:15:996_R:] OK
[2026-02-18 17:37:16:996_S:] AT+QENG="servingcell"
[2026-02-18 17:37:17:056_R:] AT+QENG="servingcell"
[2026-02-18 17:37:17:195_R:] +QENG: "servingcell","NOCONN","LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-112,-16,-77,10,0,60,-
[2026-02-18 17:37:17:195_R:] OK
[2026-02-18 17:37:18:275_S:] AT+QNWINFO
[2026-02-18 17:37:18:335_R:] AT+QNWINFO
[2026-02-18 17:37:18:335_R:] +QNWINFO: "FDD LTE","73009","LTE BAND 66",1200
[2026-02-18 17:37:18:335_R:] OK
[2026-02-18 17:37:19:236_S:] AT+QNWINFO
[2026-02-18 17:37:19:295_R:] AT+QNWINFO
[2026-02-18 17:37:19:295_R:] +QNWINFO: "FDD LTE","73009","LTE BAND 66",1200
[2026-02-18 17:37:19:295_R:] OK
[2026-02-18 17:37:20:035_S:] AT+QENG="servingcell"
[2026-02-18 17:37:20:095_R:] AT+QENG="servingcell"
[2026-02-18 17:37:20:275_R:] +QENG: "servingcell","NOCONN","LTE","FDD",730,09,445700,359,66736,66,5,5,55A,-112,-16,-76,9,0,210,-
[2026-02-18 17:37:20:275_R:] OK
[2026-02-18 17:42:06:225_S:] AT+QENG=?
[2026-02-18 17:42:06:285_R:] AT+QENG=?
[2026-02-18 17:42:06:285_R:] +QENG: ("servingcell","neighbourcell")
[2026-02-18 17:42:06:285_R:] OK
[2026-02-18 17:42:42:945_S:] AT+QCFG=?
[2026-02-18 17:42:43:015_R:] AT+QCFG=?
[2026-02-18 17:42:43:015_R:] +QCFG: "rrc",(0-5)
[2026-02-18 17:42:43:015_R:] +QCFG: "hsdpacat",(6,8,10-24)
[2026-02-18 17:42:43:015_R:] +QCFG: "hsupacat",(5,6)
[2026-02-18 17:42:43:015_R:] +QCFG: "pdp/duplicatechk",(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "risignaltype",("respective","physical")
[2026-02-18 17:42:43:015_R:] +QCFG: "lte/bandprior",(1-43),(1-43),(1-43)
[2026-02-18 17:42:43:015_R:] +QCFG: "volte_disable",(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "usbspeed",("20","30")
[2026-02-18 17:42:43:015_R:] +QCFG: "data_interface",(0,1),(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "pcie/mode",(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "pcie_mbim",(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "sms_control",(0,1),(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "call_control",(0,1),(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "usb/maxpower",(0-900)
[2026-02-18 17:42:43:015_R:] +QCFG: "efratctl",(0,1)
[2026-02-18 17:42:43:015_R:] +QCFG: "netmaskset",(0,1)[,<netmask>]
[2026-02-18 17:42:43:015_R:] OK
[2026-02-18 17:43:24:995_S:] AT+QNWCFG=?
[2026-02-18 17:43:25:085_R:] AT+QNWCFG=?
[2026-02-18 17:43:25:085_R:] +QNWCFG: "cdrx",(0,1)
[2026-02-18 17:43:25:085_R:] +QNWCFG: "nr5g_cdrx",(0,1)
[2026-02-18 17:43:25:085_R:] +QNWCFG: "csi_ctrl",(0,1),(0,1)
[2026-02-18 17:43:25:085_R:] +QNWCFG: "lte_csi",<mcs>,<ri>,<cqi>,<pmi>
[2026-02-18 17:43:25:085_R:] +QNWCFG: "nr5g_csi",<mcs>,<ri>,<cqi>,<pmi>
[2026-02-18 17:43:25:085_R:] +QNWCFG: "lte_cell_id",<ECGI>,<ECI>,<eNodeB_ID>
[2026-02-18 17:43:25:085_R:] +QNWCFG: "nr5g_cell_id",<NCGI>,<NCI>,<gNodeB_ID>
[2026-02-18 17:43:25:085_R:] +QNWCFG: "tx_pwr",<lte_pwr>,<5gnr_pwr>
[2026-02-18 17:43:25:085_R:] +QNWCFG: "data_path_ctrl",(0,1)
[2026-02-18 17:43:25:085_R:] +QNWCFG: "dss_enable",<dss_enable>
[2026-02-18 17:43:25:085_R:] +QNWCFG: "data_path",("NONE","LTE","LTE_AND_NR","NR")
[2026-02-18 17:43:25:085_R:] OK
In the log, it can be observed that during the initial scan the device detects a 5G‑NSA cell. However, after some time, this cell no longer appears.
It is important to note that the area where the tests are being conducted does have 5G (NSA) coverage, and the SIM card is enabled for 5G, so there should be no operator‑related restrictions.
Attempts were made to force the module to connect exclusively to 5G, but it fails to register at any point.
Another relevant observation is that, even though the device does connect to the 4G network, it is not possible to perform pings.
The tests were repeated using both automatic and manual APN configuration, always yielding the same results.
Regarding the hardware, it is also noteworthy that only the red Power LED turns on, while the white network LED never lights up, even when the module should be searching for a signal or attempting registration.
Additionally, I have noticed a lack of available documentation for this module. On the website, I only found the general AT command manual, but I could not locate documentation for commands such as AT+QENG or AT+QNWCFG, despite the module supporting them and having them listed internally. Although I can infer their general purpose, without official documentation it is difficult to fully understand their functionality and correct usage.
Moreover, the USB drive included in the module’s original packaging contains documentation for a different device. I am unsure whether an accidental swap may have occurred at my workplace, but I would appreciate access to the complete documentation for the RM500Q-GL.
My main suspicion is that the issue may be related to outdated firmware, as the version currently installed is:
RM500QGLABR11A02M4G_01.001.01.001
It is noteworthy that all version numbers are “01,” which suggests that this may be an early-stage firmware release.
I apologize if some of these questions are basic or repetitive. I have experience working with NB‑IoT modules, but this is my first time working with a 5G module of this type.
Thank you very much in advance for your assistance.
