nRF9160: Unable to connect Vodafone Ireland network

[zudwalex]

Hi,

I got nRF9160 and Vodafone Ireland sim - and unable to connect network.

I tried at_client and asset_racker_nbiot (& v2) firmwares, but 'LTE' sign in LTE Link Monitor flashes red/yellow and doesn't become green.

I see a lot of controversial information on Internet about connecting to nb-iot networks, so, could you clarify, please

1. Is nRF9160 able to work in Vodafone Ireland network?
2. Do I need special SIM or any regular SIM from vodafone shop is OK?
3. Do I need to use specific (approved by Vodafone) modem firmware version?
4. Do I need to use special commands in order to create APN, connect network etc? Or, if everything is OK it should connect itself?

Thank you in advance, 

Alex.

[SwRa]

Hi Alexander,

This is the issue.

zudwalex said:

2022-01-28T14:30:21.887Z DEBUG modem << +CNEC_EMM: 13

From the document 3GPP TS 24.301 Annex A, Cause #13 is "Roaming is not allowed in this tracking area". 

In Ireland it's Vodafone that is the NB-IoT operator, and if you're using a Vodafone SIM there should not be an issue with roaming. So, it might be because the doesn't have support for Nb-IoT. Any regular Vodafone SIM wouldn't be enough. You will need to contact the SIM provider and ask for a SIM card with Nb-IoT support.

Regards,

Swathy