Problem with nRF9160

[alaa.hamad]

Dears,

I can't select a new operator among the list I have, when I put the command at at+cops=1,1,"20820", I have the error: ERROR: -8, could you explain me what is this error please?

Thanks you advance.

Best regards,

[Håkon Alseth]

Hi,

 

The "format" field should be '2' when selecting '1' as the first parameter:

https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/nw_service/cops_set.html

 

Based on the at command that you are using modem_shell.

If I issue your command using the "at_client", there's no issue (at+cops=1,2,"20820"), but in modem_shell I get a "ERROR" returned, even after placing the modem in flight mode / off mode.

This seems like a bug in modem_shell at handling, which I will report internally to the modem_shell team.

 

Kind regards,

Håkon

[alaa.hamad]

I have the same error even with 2 : (at+cops=1,2,"20820")

[Håkon Alseth]

Hi,

 

Yes, I confirm that this issue seems to be a modem_shell AT handling issue, as it does not occur if you use at_client instead.

As a workaround for the time being, could you use at_client for your testing purposes?

 

The AT command needs to be escaped with "\" in modem_shell:

at at+cops=1,2,\"24412\"

 

Kind regards,

Håkon