RM530N-GL at+cops registration is denied by T-Mobile USA

IoT Modules 5G Module
,
1

at+cops=1,2,“310260”

+CME ERROR: 30

+CEREG: 3

I have a T-Mobile SIM card that works fine with a SierraWireless 4G/5G card (EM9191), but I am unable to get that SIM card (it’s unlocked) to operate with my RM530N-GL. Am I missing a step? The SIM card was first used on the Sierra Wireless, and I was under the impression that registration is pretty much automatic, so I shouldn’t even have to run the above commands. But even when I do, I am denied permission (+CEREG: 3 = “Permission denied”)…what’s wrong? mmcli just says that status is “searching/detached”, and

at+qnwinfo

+QNWINFO: No Service

but that is likely because I am not registered.

at+cfun?

+CFUN: 1

OK

at+csq

+csq: 99,99

OK
at+qrsrp

OK
at+qsinr?

OK

Seems like I am not transmitting. Or maybe not even receiving. What do I need to do to turn on the radio? I haven’t updated firmware, just using it as it arrived.

ati

Quectel
RM530N-GL
Revision: RM530NGLAAR05A01M4G

OK

And what is a QCN file and what does have to do with anything? Many posts here have issues with QCN. How can I tell if mine is present? How do I update the firwmare? Are there any WIKI’s or documents or “howto’s” from Quectel? Thanks.

2

Dear @jzb
From the response of AT commands, it seems there is no service on your side.
Please check the antennas.

If QCN was lost, CFUN will show 5 or 7. But your device is 1, it is normal.

Please share the response to us:
AT+CPIN?
AT+cops?
AT+QENG=“servingcell”
AT+QMBNCFG=“list”
AT+QNWPREFCFG=“mode_pref”

3

Here are the values:

AT+CPIN?

+CPIN: READY

OK
at+cops?

+COPS: 0

OK
at+qeng=“servingcell”

+QENG: “servingcell”,“LIMSRV”,“NR5G-SA”,“TDD”,310,260,1C736F016,199,3D5500,392910,2,3,-108,-11,4,0,9

OK
at+qmbncfg=“list”

+QMBNCFG: “List”,0,1,1,“Commercial-TMO”,0x0A01050F,202402061
+QMBNCFG: “List”,1,0,0,“ROW_Commercial”,0x0A010809,202401041
+QMBNCFG: “List”,2,0,0,“Rogers_Canada”,0x0A014800,202111051
+QMBNCFG: “List”,3,0,0,“Bell_Canada”,0x0A014700,202111051
+QMBNCFG: “List”,4,0,0,“Telus_Canada”,0x0A014900,202112271
+QMBNCFG: “List”,5,0,0,“Commercial-Sprint”,0x0A010204,202111051
+QMBNCFG: “List”,6,0,0,“VoLTE-ATT”,0x0A010335,202305161
+QMBNCFG: “List”,7,0,0,“CDMAless-Verizon”,0x0A010126,202209281
+QMBNCFG: “List”,8,0,0,“Telia_Sweden”,0x0A012400,202303301
+QMBNCFG: “List”,9,0,0,“TIM_Italy_Commercial”,0x0A012B00,202111051
+QMBNCFG: “List”,10,0,0,“France-Commercial-Orange”,0x0A010B21,202403141
+QMBNCFG: “List”,11,0,0,“Commercial-DT-VOLTE”,0x0A011F1F,202403221
+QMBNCFG: “List”,12,0,0,“Germany-VoLTE-Vodafone”,0x0A010449,202111051
+QMBNCFG: “List”,13,0,0,“UK-VoLTE-Vodafone”,0x0A010426,202111051
+QMBNCFG: “List”,14,0,0,“Commercial-EE”,0x0A01220B,202303301
+QMBNCFG: “List”,15,0,0,“Optus_Australia_Commercial”,0x0A014400,202111051
+QMBNCFG: “List”,16,0,0,“Telstra_Australia_Commercial”,0x0A010F00,202304251
+QMBNCFG: “List”,17,0,0,“Commercial-LGU”,0x0A012608,202111051
+QMBNCFG: “List”,18,0,0,“Commercial-KT”,0x0A01280B,202111051
+QMBNCFG: “List”,19,0,0,“Commercial-SKT”,0x0A01270A,202111051
+QMBNCFG: “List”,20,0,0,“Commercial-Reliance”,0x0A011B0C,202210211
+QMBNCFG: “List”,21,0,0,“Commercial-SBM”,0x0A011C0B,202111051
+QMBNCFG: “List”,22,0,0,“Commercial-KDDI”,0x0A010709,202111051
+QMBNCFG: “List”,23,0,0,“Commercial-DCM”,0x0A010D0D,202301051
+QMBNCFG: “List”,24,0,0,“VoLTE-CU”,0x0A011561,202310181
+QMBNCFG: “List”,25,0,0,“VoLTE_OPNMKT_CT”,0x0A0113E0,202310241
+QMBNCFG: “List”,26,0,0,“Volte_OpenMkt-Commercial-CMCC”,0x0A012010,202307241

OK
at+qnwprefcfg=“mode_pref”

+QNWPREFCFG: “mode_pref”,LTE:NR5G

OK

Also, please note that T-Mobile in my area in not known as

“Commercial-TMO”

(from +QMBNCFG: “List”,0,1,1,“Commercial-TMO”,0x0A01050F,202402061) but rather

“T-Mobile”

or sometimes

“fast.t-mobile.com”

Is T-Mobile missing from the QMBNCFG list? Thanks…

4

Dear @jzb
Do you have USB port to capture log for analyze?

5

Yes, I believe I have the necessary communications paths. I am running Linux and I have /dev/ttyUSB[0-3] present. I currently use /dev/ttyUSB2 with minicom to send/receive AT… commands. I’m running the modem via /dev/cdc-wdm0 and the debug port should be /dev/ttyUSB0 or one of the others, can’t recall which. Let me know what to capture and how. My ‘lsusb’ shows

Bus 002 Device 017: ID 2c7c:0801 Quectel Wireless Solutions Co., Ltd. RM530N-GL

for the modem.

6

Dear @jzb
I will sent the tool and user guide to capture log via Message, please check.