This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

nRF 9160 Asset Tracker. Not registered, but UE is currently trying to attach or searching an operator to register to.

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?

LTE Link Monitor

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

Related