Hi everyone, I am working with nrf 9160 Development Kit. I use LTE LINK MONITOR Unfortunately I am not able to connect to a LTE-NB network. I have updated the Modem Firmware to mfw_nrf9160_1.3.1 (finalversion) and programmed the NRF with the nrf9160dk_at_client_2021-10-20.hex firmware (final image) via the NRF connect programmer sw tool.I am using a SIM from Turkcell, In the LTE Link Monitor im giving the AT commands AT%XSYSTEMMODE=0,1,0,0 //for LTE-NB usage after giving AT+CFUN=1 and AT+CFUN? im getting the usual feedback
but when there is a signal (according to CEREG) the NRF tries to connect, the LTE indicator. But it doesn't get green. They found Turkcell when I click Serach Networks button. My sim card in NB-iot system why my 9160 dk doesn't connect to LTE? My LTE LINK MONITOR pictures :
My Terminal:
AT+CFUN?
+CFUN: 0
OK
AT%XSYSTEMMODE=0,1,0,0
OK
AT+CFUN=1
OK
AT+CFUN?
+CFUN: 1
OK
AT+CGSN=1
+CGSN: "352656100369043"
OK
AT+CGMI
Nordic Semiconductor ASA
OK
AT+CGMM
nRF9160-SICA
OK
AT+CGMR
mfw_nrf9160_1.3.1
OK
AT+CEMODE?
+CEMODE: 0
OK
AT%XCBAND=?
%XCBAND: (1,2,3,4,5,8,12,13,17,19,20,25,26,28,66)
OK
AT+CMEE?
+CMEE: 0
OK
AT+CMEE=1
OK
AT+CNEC?
+CNEC: 0
OK
AT+CNEC=24
OK
AT+CGEREP?
+CGEREP: 0,0
OK
AT+CGDCONT?
OK
AT+CGACT?
OK
AT+CGEREP=1
OK
AT+CIND=1,1,1
OK
AT+CEREG=5
OK
AT+CEREG?
+CEREG: 5,4
OK
AT%CESQ=1
OK
AT+CESQ
+CESQ: 99,99,255,255,255,255
OK
AT%XSIM=1
OK
AT%XSIM?
%XSIM: 0
OK
%XSIM: 1
AT+CPIN?
+CPIN: READY
OK
AT+CPINR="SIM PIN"
+CPINR: "SIM PIN",3
OK
AT+CIMI
286016859710110
OK
%CESQ: 53,2,22,3
+CEREG: 2,"1644","00242065",9
+CNEC_ESM: 27,0
+CNEC_EMM: 19
+CEREG: 2,"1644","00242065",9,0,19
%CESQ: 53,2,17,2
%CESQ: 52,2,24,3
%CESQ: 49,2,18,2
%CESQ: 51,2,23,3
AT+COPS=?
%CESQ: 255,0,255,0
%CESQ: 51,2,18,2
+CEREG: 2,"C22A","00B4DD15",9
%CESQ: 53,2,24,3
+CNEC_EMM: 14
+CEREG: 2,"C22A","00B4DD15",9,0,14
%CESQ: 50,2,19,2
%CESQ: 255,0,255,0
%CESQ: 50,2,14,2
+CEREG: 2,"1644","00242065",9
%CESQ: 51,2,19,2
+CNEC_ESM: 27,0
+CNEC_EMM: 19
+CEREG: 2,"1644","00242065",9,0,19
+CEREG: 2,"1644","000C0266",9
%CESQ: 50,2,14,2
%CESQ: 50,2,19,2
%CESQ: 48,2,11,1
%CESQ: 49,2,18,2
+COPS: (1,"","","28601",9),(3,"","","28602",9)
OK
AT+COPS?
+COPS: 0
OK
%CESQ: 47,2,13,1
%CESQ: 51,2,19,2
%CESQ: 49,2,12,1
%CESQ: 51,2,17,2
%CESQ: 49,2,12,1
%CESQ: 50,2,19,2
%CESQ: 49,2,13,1
%CESQ: 50,2,19,2
%CESQ: 49,2,14,2
%CESQ: 50,2,19,2
%CESQ: 48,2,14,2
%CESQ: 51,2,19,2
%CESQ: 50,2,14,2
%CESQ: 46,2,9,1
%CESQ: 50,2,17,2
%CESQ: 47,2,9,1
%CESQ: 48,2,15,2
%CESQ: 46,2,9,1
%CESQ: 48,2,14,2
%CESQ: 48,2,8,1
%CESQ: 48,2,14,2
%CESQ: 46,2,9,1
