nrf9160DK NOT CONNECTED TO LET NET

[Koldo]

Hello,

i tried the getting started procedure with the NRF9160DK demo board but I cannot finish the whole procedure.

After activating the iBasis eSIM, I turn on the device and wait for 3 minutes until both leds 3 and 4 start blinking.

I thoungt it was going not to connect becasue it didn't in my first attempt but now it seems that connects correctly because both leds start blinking. Then I start the pairing procedure. When starting it the LED3 remains on and LED4 keeps on blinking. After finishing the pairing steps the LED3 goes off and the LED keeps blinking. Until here seems everything is correct.

But when I check my devices in the nrfclould.com it says I have not device. I tried this procedure several times but the device seems not be activated.

Which could be the reason.

In the nrfcloud.com I can see also that the SIM has sent some data because I have 0.07MB used but it says "Not connected to any device"

Any idea?

[Bjørn Kvaale]

Which version of the nRF91 DK do you have?

Does LED 4 ever consistently stay on? That would mean you are connected. Could you check with the Link Monitor app on nRF Connect for Desktop which modem FW you are running. All you need to do is connect to your device & then run the AT+CFUN? command twice. You should then be able to see something similar to:

If you are not running this modem FW, I would update your FW by downloading the following link. Documentation is included to show you how to update the modem FW.

[Koldo]

Hello,

When the device is switched on and not connected to the link Monitor the LED3 starts blinking, after a while both LED3 and LED4 start blinking and then only LED4 continues blinking but never fixed. 

If I connet the Link Monitor and reset the device, it seems it is more difficult to connect and the system do some trials after it gives the nrff_cloud_connect failed: -111 error. Here the screenshot of the Link Monitor

I could connect once but when I followd the association pattern it didn't do anything. Here the screenshot of the Link Monitor.

My device version is 0.8.5 2019.7

I find the IMEI in the device label but not any PIN.

I don't know how to check the firmware becasue I have no answer to the AT commands

[Bjørn Kvaale]

What if you reset via the command line instead & then try to input AT commands: nrfjprog --reset

Does that work?

[Koldo]

It starts trying to connect several times. During that time does not respond to AT commands and when it finishes wihout having connected neither.

[Koldo]

I updated the firmware and now association is ok

Thank you

[Koldo]

HI, 

Sorry, althoug now is associated the GPS information shown in my cloud says that I am in Norway. Moreover the AT commends continue wihout working

[Bjørn Kvaale]

Have you made any changes to the FW application at all? I am not exactly sure which version of the asset tracker code is running on the nRF91 when it is shipped out. It may be that that FW does not support AT commands. If you want to test with NCS tagged version 0.4.0, I have uploaded a merged hex file which includes the Secure Partition Manager code along with the Asset Tracker application. This FW does support AT commands.

merged.hex

You can program the nRF91 via the following command (make sure the switch is in the nRF91 position):

nrfjprog --program merged.hex -f nrf91 --sectorerase --verify

The code shows simulated GPS data at the moment because the modem FW is not currently optimized for timeslotting LTE with GPS. This will be fixed in a future modem release. That is why the position is in Trondheim, Norway.

[Koldo]

Ok. Thank you.

I updated the asset tracker app using the segger emStudio and now it gives also temperature, humidity and air pressure information. Is this data real or also a simulation like with GPS?

AT commands are working now and this is the modem firmware version

Thank you. I will continue evaluating the device.

[Bjørn Kvaale]

Great! The temperature, humidity & air pressure information is also simulated, as the 91 DK does not have any of these sensors. You can however easily add some sensors to get real data. Seems like you are all set to continue evaluating!

[Koldo]

Yes. Thank you. You can close the ticket