Hi everyone,
I am trying to connect my nRF 9160 DK and Thingy:91 to TIM (Telecom Italia Mobile) CAT-NB1 network provider from Brazil. I am using the Asset Tracker and mfw_nrf9160_1.1.1 modem firmware.
AT commands to attach the network:
AT%XBANDLOCK=1,"1000000000000000000000000100" -> B3 (1800MHz) e B28 (700MHz)
AT%XSYSTEMMODE=0,1,1,0 -> sets Cat-NB1 and GNSS as the system modes. No preferred mode set
AT+CGDCONT=1,"IP","nbiot" -> IPv4 and APN configuration
AT+COPS=1,2,"72402",9 -> PLMN configuration
It looks like I am unable to register to the network. I tested with the iBasis chip and works well and connect to nrfcloud but when i try to connect to my provider i have no success.
I am attaching the screenshot of the LTE Link Monitor and the log file.
Can anyone help me to discover my mistake?
AT%XBANDLOCK=1,"1000000000000000000000000100" OK AT%XSYSTEMMODE=0,1,1,0 OK AT+CGDCONT=1,"IP","nbiot" OK AT+COPS=1,2,"72402",9 OK AT+CFUN=1 OK %XSIM: 1 AT+CPIN? +CPIN: READY OK AT+CPINR="SIM PIN" +CPINR: "SIM PIN",3 OK AT+CIMI 724023202340791 OK AT+CFUN? +CFUN: 1 OK AT+CGSN=1 +CGSN: "352656100440794" OK AT+CGMI Nordic Semiconductor ASA OK AT+CGMM nRF9160-SICA OK AT+CGMR mfw_nrf9160_1.1.1 OK AT+CEMODE? +CEMODE: 0 OK AT%XCBAND=? %XCBAND: (3,28) OK AT+CMEE? +CMEE: 1 OK AT+CNEC? +CNEC: 24 OK AT+CGEREP? +CGEREP: 1,0 OK AT+CIND=1,1,1 OK AT+CEREG=2 OK AT+CEREG? +CEREG: 2,0,"FFFE","FFFFFFFF",9 OK AT%CESQ=1 OK AT+CESQ +CESQ: 99,99,255,255,255,255 OK AT%XSIM=1 OK AT%XSIM? %XSIM: 1 OK AT+CPIN? +CPIN: READY OK AT+CPINR="SIM PIN" +CPINR: "SIM PIN",3 OK AT+CIMI 724023202340791 OK AT+COPS=? %CESQ: 20,1,15,2 +CEREG: 2,"A8F4","032B2628",9 [00:01:28.036,010] [0m<dbg> lte_lc.parse_nw_reg_status: Network registration status: 2 [0m +CNEC_ESM: 111,0 [00:01:30.668,579] [1;31m<err> lte_lc: Could not parse AT+CEREG response, error: -11 [0m [00:01:30.676,574] [1;31m<err> lte_lc: Could not get network registration status [0m +CNEC_EMM: 15 [00:01:30.685,668] [1;31m<err> lte_lc: Could not parse AT+CEREG response, error: -11 [0m [00:01:30.693,664] [1;31m<err> lte_lc: Could not get network registration status [0m +CEREG: 4,"A8F4","032B2628",9 [00:01:30.704,223] [0m<dbg> lte_lc.parse_nw_reg_status: Network registration status: 4 [0m %CESQ: 255,0,255,0 +CEREG: 4,"FFFE","FFFFFFFF",9 [00:01:31.057,952] [0m<dbg> lte_lc.parse_nw_reg_status: Network registration status: 4 [0m +CEREG: 2,"FFFE","FFFFFFFF",9 [00:01:45.081,298] [0m<dbg> lte_lc.parse_nw_reg_status: Network registration status: 2 [0m %CESQ: 255,0,255,0 +COPS: (1,"","","72402",9),(1,"","","72423",9) OK AT+COPS? +COPS: 1 OK AT+CEREG? +CEREG: 2,2,"FFFE","FFFFFFFF",9 OK %CESQ: 255,0,255,0 %CESQ: 255,0,255,0
