I got new module RM520NGL but cannot connect to OAI gNB

IoT Modules 5G Module
1

Hi Folks, Greetings for the day. I hope you all doing good. I have recently procured new quectel module RM520NGL for testing the connection between OAI gNB and Quectel Module but my quectel is not attaching to gNB. The current firmware version is RM520NGLAAR03A03M4G. Can you please tell me is any other AT commands or the process to make it work with Quectel.

2

Dear @bharat11agarwal
Is it a private network? Is it 5G or 4G?

4

It is a public 5G Network

5

Dear @bharat11agarwal
SA or NSA?
Please check the AT commands as below:
AT+QNWPREFCFG=“rat_acq_order”
AT+QNWPREFCFG=“nsa_nr5g_band”
AT+QNWPREFCFG=“nr5g_band”
AT+QNWPREFCFG=“mode_pref”
AT+QNWPREFCFG=“nr5g_disable_mode”

6

Hi it is for 5g sa mode. here is the commands output
[2025-08-18_10:12:47:386]at+qnwprefcfg=“rat_acq_order”

[2025-08-18_10:12:47:386]+QNWPREFCFG: “rat_order_pref”,NR5G

[2025-08-18_10:12:47:386]

[2025-08-18_10:12:47:386]OK

[2025-08-18_10:12:49:686]at+qnwprefcfg=“nr5g_band”

[2025-08-18_10:12:49:686]+QNWPREFCFG: “nr5g_band”,78

[2025-08-18_10:12:49:686]

[2025-08-18_10:12:49:686]OK

[2025-08-18_10:12:51:615]at+qnwprefcfg=“mod_pref”

[2025-08-18_10:12:51:615]ERROR

[2025-08-18_10:12:53:435]AT+QNWPREFCFG=“nr5g_disable_mode”

[2025-08-18_10:12:53:435]+QNWPREFCFG: “nr5g_disable_mode”,0

[2025-08-18_10:12:53:435]

[2025-08-18_10:12:53:435]OK

7

Dear @bharat11agarwal
Please check activated MBN via AT+QMBNCFG=“list” .

8

[2025-08-19_10:45:07:370]at+qmbncfg=“list”

[2025-08-19_10:45:07:410]+QMBNCFG: “List”,0,1,1,“Volte_OpenMkt-Commercial-CMCC”,0x0A012010,202209221

[2025-08-19_10:45:07:410]+QMBNCFG: “List”,1,0,0,“ROW_Commercial”,0x0A010809,202401151

[2025-08-19_10:45:07:410]+QMBNCFG: “List”,2,0,0,“ROW_Generic_3GPP_PTCRB_GCF”,0x0A01FF09,202203161

[2025-08-19_10:45:07:410]+QMBNCFG: “List”,3,0,0,“TEF_Spain_Commercial”,0x0A010C00,202302071

[2025-08-19_10:45:07:425]+QMBNCFG: “List”,4,0,0,“FirstNet”,0x0A015300,202206171

[2025-08-19_10:45:07:425]+QMBNCFG: “List”,5,0,0,“Rogers_Canada”,0x0A014800,202303141

[2025-08-19_10:45:07:425]+QMBNCFG: “List”,6,0,0,“Bell_Canada”,0x0A014700,202111051

[2025-08-19_10:45:07:425]+QMBNCFG: “List”,7,0,0,“Telus_Jasper_Canada”,0x0A01F900,202304281

[2025-08-19_10:45:07:457]+QMBNCFG: “List”,8,0,0,“Telus_Consumer_Canada”,0x0A01FA00,202304281

[2025-08-19_10:45:07:457]+QMBNCFG: “List”,9,0,0,“Commercial-Sprint”,0x0A010204,202111051

[2025-08-19_10:45:07:457]+QMBNCFG: “List”,10,0,0,“Commercial-TMO”,0x0A01050F,202402061

[2025-08-19_10:45:07:457]+QMBNCFG: “List”,11,0,0,“VoLTE-ATT”,0x0A010335,202206171

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,12,0,0,“CDMAless_Private-Verizon”,0x0A01FD28,202304271

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,13,0,0,“CDMAless-Verizon”,0x0A010126,202304251

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,14,0,0,“Swiss-Comm”,0x0A010411,202304261

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,15,0,0,“Telia_Sweden”,0x0A012400,202111051

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,16,0,0,“TIM_Italy_Commercial”,0x0A012B00,202111051

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,17,0,0,“France-Commercial-Orange”,0x0A010B21,202401081

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,18,0,0,“Commercial-DT-VOLTE”,0x0A011F1F,202212061

[2025-08-19_10:45:07:472]+QMBNCFG: “List”,19,0,0,“Germany-VoLTE-Vodafone”,0x0A010449,202401201

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,20,0,0,“UK-VoLTE-Vodafone”,0x0A010426,202401201

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,21,0,0,“Commercial-EE”,0x0A01220B,202111051

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,22,0,0,“Optus_Australia_Commercial”,0x0A014400,202111051

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,23,0,0,“Telstra_Australia_Commercial”,0x0A010F00,202311071

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,24,0,0,“Commercial-LGU”,0x0A012608,202111051

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,25,0,0,“Commercial-KT”,0x0A01280B,202308031

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,26,0,0,“Commercial-SKT”,0x0A01270A,202111051

[2025-08-19_10:45:07:488]+QMBNCFG: “List”,27,0,0,“Commercial-Reliance”,0x0A011B0C,202210211

[2025-08-19_10:45:07:504]+QMBNCFG: “List”,28,0,0,“Commercial-SBM”,0x0A011C0B,202401231

[2025-08-19_10:45:07:504]+QMBNCFG: “List”,29,0,0,“Commercial-KDDI”,0x0A010709,202401191

[2025-08-19_10:45:07:504]+QMBNCFG: “List”,30,0,0,“Commercial-DCM”,0x0A010D0D,202312201

[2025-08-19_10:45:07:504]+QMBNCFG: “List”,31,0,0,“VoLTE-CU”,0x0A011561,202310181

[2025-08-19_10:45:07:519]+QMBNCFG: “List”,32,0,0,“VoLTE_OPNMKT_CT”,0x0A0113E0,202312141

[2025-08-19_10:45:07:519]

[2025-08-19_10:45:07:519]OK

9

Dear @bharat11agarwal
Please execute the AT commands below and try again.
AT+QMBNCFG=“Deactivate”
AT+QMBNCFG=“Autosel”,0
AT+QMBNCFG=“Select”,“ROW_Commercial”
AT+QMBNCFG=“list”

10

helle , hope you’re doing well , please do you have any solution ?? , cause i have the same problem . thnks

11

Dear @maiz
You can try to change mbn and test again.