RM520N-GL not register network

AT+CGMR
RM520NGLAAR01A08M4G

AT+CSUS
SubEdition: V02

AT+CFUN?
+CFUN: 1

AT+CPIN?
+CPIN: READY

AT+CSQ
+CSQ: 26,99

AT+CGREG?
+CGREG: 0,0

AT+CREG?
+CREG: 0,0

AT+COPS?
+COPS: 0

AT+QMBNCFG=“List”
+QMBNCFG: “List”,0,0,0,“ROW_Commercial”,0x0A010809,202305221
+QMBNCFG: “List”,1,0,0,“Commercial-KDDI”,0x0A010709,202111051
+QMBNCFG: “List”,2,0,0,“TEF_Spain_Commercial”,0x0A010C00,202302071
+QMBNCFG: “List”,3,0,0,“ROW_Generic_3GPP_PTCRB_GCF”,0x0A01FF09,202205261
+QMBNCFG: “List”,4,0,0,“FirstNet”,0x0A015300,202206171
+QMBNCFG: “List”,5,0,0,“Rogers_Canada”,0x0A014800,202303141
+QMBNCFG: “List”,6,0,0,“Bell_Canada”,0x0A014700,202111051
+QMBNCFG: “List”,7,0,0,“Telus_Canada”,0x0A014900,202112271
+QMBNCFG: “List”,8,0,0,“Commercial-Sprint”,0x0A010204,202111051
+QMBNCFG: “List”,9,0,0,“Commercial-TMO”,0x0A01050F,202303091
+QMBNCFG: “List”,10,0,0,“VoLTE-ATT”,0x0A010335,202208211
+QMBNCFG: “List”,11,0,0,“CDMAless_Private-Verizon”,0x0A01FD28,202409201
+QMBNCFG: “List”,12,0,0,“CDMAless-Verizon”,0x0A010126,202409201
+QMBNCFG: “List”,13,0,0,“Telia_Sweden”,0x0A012400,202111051
+QMBNCFG: “List”,14,0,0,“TIM_Italy_Commercial”,0x0A012B00,202111051
+QMBNCFG: “List”,15,0,0,“France-Commercial-Orange”,0x0A010B21,202409181
+QMBNCFG: “List”,16,0,0,“Commercial-DT-VOLTE”,0x0A011F1F,202409181
+QMBNCFG: “List”,17,0,0,“Germany-VoLTE-Vodafone”,0x0A010449,202111051
+QMBNCFG: “List”,18,0,0,“UK-VoLTE-Vodafone”,0x0A010426,202111051
+QMBNCFG: “List”,19,0,0,“Commercial-EE”,0x0A01220B,202409041
+QMBNCFG: “List”,20,0,0,“Optus_Australia_Commercial”,0x0A014400,202111051
+QMBNCFG: “List”,21,0,0,“Telstra_Australia_Commercial”,0x0A010F00,202304251
+QMBNCFG: “List”,22,0,0,“Commercial-LGU”,0x0A012608,202111051
+QMBNCFG: “List”,23,0,0,“Commercial-KT”,0x0A01280B,202308031
+QMBNCFG: “List”,24,0,0,“Commercial-SKT”,0x0A01270A,202111051
+QMBNCFG: “List”,25,0,0,“Commercial-Reliance”,0x0A011B0C,202210211
+QMBNCFG: “List”,26,0,0,“Commercial-SBM”,0x0A011C0B,202111051
+QMBNCFG: “List”,27,0,0,“Commercial-DCM”,0x0A010D0D,202410311
+QMBNCFG: “List”,28,0,0,“VoLTE-CU”,0x0A011561,202310181
+QMBNCFG: “List”,29,0,0,“VoLTE_OPNMKT_CT”,0x0A0113E0,202204211
+QMBNCFG: “List”,30,0,0,“Volte_OpenMkt-Commercial-CMCC”,0x0A012010,202411261

AT+QENG=“servingcell”
+QENG: “servingcell”,“LIMSRV”,“LTE”,“FDD”,440,11,540C50C,63,1500,3,5,5,2C03,-88,-12,-56,17,0,-,35

AT+CGDCONT?
+CGDCONT: 1,“IPV4V6”,“rakuten.jp”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0,“”,0
+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
+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

AT+QCFG=“rrc”
+QCFG: “rrc”,5

AT+CGPADDR
+CGPADDR: 1,“0.0.0.0”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”
+CGPADDR: 2,“0.0.0.0”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”
+CGPADDR: 3,“0.0.0.0”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”

Dear @yeuvoban
Please execute the AT commands as below:
AT+QMBNCFG=“Deactivate”
AT+QMBNCFG=“Autosel”,0
AT+QMBNCFG=“Select”,“ROW_Commercial”
AT+CFUN=0
AT+CFUN=1
AT+QENG=“servingcell”

Hi @silvia

Received the following responses:

AT+QMBNCFG="Deactivate"

OK
AT+QMBNCFG="AutoSel",0

OK
AT+QMBNCFG="Select","ROW_Commercial"

OK
AT+CFUN=0

OK
AT+CFUN=1

OK

+CPIN: READY

+QUSIM: 1

+QIND: SMS DONE

+QIND: PB DONE
AT+QENG="servingcell"

+QENG: "servingcell","LIMSRV","LTE","FDD",440,11,540C906,253,1500,3,5,5,2C03,-104,-20,-63,10,0,-,19

OK

Dear @yeuvoban
It seems the netowrk was limited, did you confirm with operator firstly?
Did SIM card work on other device?

@silvia on my phone and laptop it still works fine

Dear @yeuvoban
Do you try to contact with operator to check the reason?
And check on phone and laptop, which band was used?

I contacted Rakuten mobile and they said there are no restrictions. on phone it works with band b3 1500

Dear @yeuvoban
The RSRP value is -104, it is not good. How many antennas use? Which use?