[Thingy:91] Emnify eSIM LTE network not establishing connection

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

iBasis Tech Support — Wed, 25 Mar 2020 15:40:13 GMT

To follow up on below: You can always check which operators supports LTE-M/NB IoT in your country on the GSMA map: https://www.gsma.com/iot/deployment-map/.

Indeed, so far we have not realized coverage in Bulgaria, the closest country where you could test LTE-M is Romania: https://ibasis.com/solutions/iot-connectivity/network-coverage/ ; However, given the current situation, that is quite difficult at the moment.

Kind regards,

Iuliana

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

Simon — Wed, 25 Mar 2020 12:11:50 GMT

Unfortunately, there is no support for either LTE-M nor NB-IoT in Bulgaria: https://www.gsma.com/iot/deployment-map/. So, there is no way for you to test the Thingy:91 at the moment, you have to go to another country or wait for it to come to Bulgaria. One solution could be to use a callbox that simulates the network.

[quote user="redshifter"]For now, just to check if the sensor data is OK, Bluetooth is OK. Would you please provide a tutorial for this case too, please?[/quote]

What kind of tutorial are you asking about? An NCS specific? An nRF5 SDK specific? A BLE specific? Please specify.

Best regards,

Simon

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

redshifter — Wed, 25 Mar 2020 12:09:56 GMT

About Question #1: Thank you! I also find-out that Emnify has only 3G & 4G capabilities in Bulgaria. I'm sorry that I didn't find it on a early stage.

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

redshifter — Wed, 25 Mar 2020 10:52:49 GMT

For now, just to check if the sensor data is OK, Bluetooth is OK. Would you please provide a tutorial for this case too, please?

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

redshifter — Wed, 25 Mar 2020 10:50:32 GMT

Thank you Simon for the quick and detailed response! I will checkout now all of you guidelines.

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

redshifter — Wed, 25 Mar 2020 10:46:13 GMT

devzone.nordicsemi.com/.../240346

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

Simon — Wed, 25 Mar 2020 10:37:14 GMT

[quote userid="85994" url="~/f/nordic-q-a/59436/thingy-91-emnify-esim-lte-network-not-establishing-connection"]1. Is it possible to set the modem to work with 4G or 3G network if the local Cellular operators does not support LTE at all?[/quote]

No, that is not possible. The modem only supports LTE-M and NB-IoT. However, LTE-M is supported in both 4G and 5G, but there needs to be either LTE-M or NB-IoT coverage for your operator in your area in order to get a connection. I searched for Bulgaria in https://www.emnify.com/m2m-iot-coverage, and there was no support for LTE-M. Thus you need another SIM-card unfortunately. Check out these links to get a better overview of how it works:

[quote userid="85994" url="~/f/nordic-q-a/59436/thingy-91-emnify-esim-lte-network-not-establishing-connection"]2. What are the options to get sensor data without eSIM connectivity?[/quote]

Another wireless option, if you're using the Thingy:91, is to use the onboard nRF52840 and get sensor data over BLE. But I assume the sensor data needs to get transferred over a long distance. In that case, you need a SIM card that supports either NB-IoT or LTE-M in your area.

[quote userid="85994" url="~/f/nordic-q-a/59436/thingy-91-emnify-esim-lte-network-not-establishing-connection"]3. How I can use the debug in/out features of nrf52840-DK? Do you have a detailed user guide for this?[/quote]

If you are using NCS, check out the NCS tutorial part 3 --> 3.2 Debugging. If you're using the nRF5 SDK, check out SEGGER Embedded Studio - Basics of debugging

Best regards,

Simon

RE: [Thingy:91] Emnify eSIM LTE network not establishing connection

redshifter — Wed, 25 Mar 2020 09:28:39 GMT

Additional question: What if Nb-IoT as a fallback failed as LTE? Should the modem switch to GPRS networks?l