Can't connect Thingy 91X to hello.nrfcloud

[SteppedGears]

Hello,

I'm trying the Thingy 91X but I'm having a few issue with the demo application that connects to hello.nrfcloud.com:

After flashing it with the Quick Start from the nRF Connect for desktop, it apparently connects to the network but then I get this error on the serial terminal:

[00:01:16.525,756] <inf> nrf_cloud_coap_transport: Request authorization with JWT
[00:01:16.901,885] <err> nrf_cloud_coap_transport: Device not authenticated; reconnection required.
[00:01:16.901,916] <inf> nrf_cloud_coap_transport: Authorization result_code: 4.01
[00:01:17.404,602] <err> transport: nrf_cloud_coap_connect, error: -13, retrying

I also get a "Connection failed" error from hello.nrfcloud.com: "The fingerprint you have provided is not recognized, and we were unable to identify the device it belongs to."

From the quick start, I've used the "Start prototyping" entry, with the hello nRF Cloud example.

Initially I tried with the provided SIM cards, but then I've found that they don't provide connectivity in Italy, where I'm based. I'm using a SIM card that works now, and the device apparently is registered to the network.

Should it work out of the box, or there are some extra steps to perform?

Thanks!

[Michal]

Hello,

It should work out of the box.

Initially I tried with the provided SIM cards, but then I've found that they don't provide connectivity in Italy, where I'm based. I'm using a SIM card that works now, and the device apparently is registered to the network.

That's weird, the Conexa/Wireless Logic SIM should have connectivity in Italy according to their website, while Onomondo does not, that is correct.

Though coverage may vary inside the country of course.

Can you tell me which SIM card did you get from which local operator? Sometimes operators sell IoT cards that don't support LTE-M or NB-IoT.

Best regards,

Michal

[Achim Kraus]

Michal said:

Can you tell me which SIM card did you get from which local operator? Sometimes operators sell IoT cards that don't support LTE-M or NB-IoT.

The app shows a 4.01 (UNAUTHORIZED). For me this looks more like the CoAP response code from the server. Or does the app translate failed network registrations into CoAP response codes?

Anyway, though I'm pretty sure, that it works not only in my experience "out of the box" (without flashing), it may be a chance to apply Thingy:91X factory reset .

 

[SteppedGears]

Achim Kraus said:

Or does the app translate failed network registrations into CoAP response codes?

I don't think so, when I used the SIMs that couldn't connect, I got the proper rejection cause. (14, if I recall correctly)

I'll try the factory reset, but first I'll have to get the proper connector and borrow a demo kit. Thanks for the suggestion

[Achim Kraus]

SteppedGears said:

I don't think so

I also don't think so, therefore the question about the SIM seems for me to point into the wrong direction.

One "secret" about the MNVO' SIM and coverage map is simple: they usually don't mention the MNO(s) they have subscribed. Not sure, which networks are at your location, but sometimes it may be the wrong, even if it's in a "covered country".

May I ask one question:

Why did you flash the Thingy:91X?

The brochure says:

[1] insert Sim

[2] enable device

[3] check the web site

(OK, they forgot [2.5] wait for the network.)