Updating the nRF9160 DK

[jseidel]

Hello together, 

I am trying to update the nRF9160 device because I can't get a network connection. 
I followed the guidance of a manual of this site (https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/nrf-cloud-certificate-update).

When it comes to the point " ensure the modem is in offline state (AT+CFUN=4)" I get a timed out Error. 

I attached a screenshot which shows the error and also that I have added the "nrf91dk_at_client_long_at_commands" which should prevent it, but didn't helped.

Hope you can help me with something I can try to make it work.

Thanks in Advance and best greetings 

jseidel

[jseidel]

Hello Øyvind, 

with I can't get an network connection I mean that only led3 is blinking when I insert a SIM card and not led4. 
I have tested the SIM card and it should definitely have an NB-IOT connection.

I have now programmed the nrf9160dk_at_client_2020-04-29_bc7ade8b.hex.

And made sure that the SW5 is set to nRF91.

I attached you the LTE Link monitor output and the programmer output.

Best regards, 

jseidel

[jseidel]

Øyvind said:

 Did you remove the SIM card and uncheck "Automatic requests" in the LTE Link Monitor? Did you get any errors?! 

I've done that and didn't got any errors.
In the LTE Link Monitor I get two kind of errors, but independent of those changes: 

- Error while probing devices: Error occured when get serial numbers. Errorcode: CouldNotCallFunction (0x9) Lowlevel error: INVALID_OPERATION (fffffffe)

-> after starting the software

and

- Error: timed out after every at command I try.

Øyvind said:

Did you get any errors while programming this?

No I can easily add it in with drag & drop.

In the programming software I get the error 'Unsupported device. The detected device could not be recognized as neither JLink device nor Nordic USB device.'

That's why I can update the firmware of the device and so not the certificates in the lte link monitor.

Øyvind said:

You mention nRF9160 device, what device is this exactly?

It is the nRF9160 Development Kit. 

This one: https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF9160-DK

Greetings, 
jseidel

[Øyvind]

jseidel said:

Error while probing devices: Error occured when get serial numbers. Errorcode: CouldNotCallFunction (0x9) Lowlevel error: INVALID_OPERATION (fffffffe)

 Do you have anything connected to your board? Or have you removed any jumpers from i.e. nRF Current Measurement? Can you provide an image of your board? 

jseidel said:

It is the nRF9160 Development Kit. 

 Have you tried to program the device using nrfjprog? In Command Prompt (or similar) please navigate to the folder where nrf9160dk_at_client_2020-04-29_bc7ade8b.hex is located.  Then do the following:

nrfjprog -e

nrfjprog -f nrf91 --program nrf9160dk_at_client_2020-04-29_bc7ade8b.hex --verify -r 

[jseidel]

Øyvind said:

Do you have anything connected to your board? Or have you removed any jumpers from i.e. nRF Current Measurement? Can you provide an image of your board? 

No I haven't changed anything on the board. 

Øyvind said:

 Have you tried to program the device using nrfjprog? In Command Prompt (or similar) please navigate to the folder where nrf9160dk_at_client_2020-04-29_bc7ade8b.hex is located.  Then do the following:

When I try this, I get the terminal response: 

-bash: nrfjprog: command not found

[Øyvind]

 Thanks for sharing an image.

 

jseidel said:

-bash: nrfjprog: command not found

 What operating system are you running? Can you please try to download and install nRF Command Line Tools, this could maybe help with the issue. 

[jseidel]

ok got some good news! 
after I've downloaded the nRF command Line tools software the nrfConnect programmer recognized the JLINK device and the LTE Link Monitor as well. 

I was able to update the firmware, add the ability to write the nrf9160dk_at_client_2020-04-29_bc7ade8b.hex .
And the AT commands are working. 
When I was trying to update the certificates in the LTE Link Monitor, I got the following errors:

Do you have any help there?

[Øyvind]

Very happy to hear that it fixed the issue with recognizing the device

jseidel said:

When I was trying to update the certificates in the LTE Link Monitor, I got the following errors:

 That's strange. Did you remember to do step two in the guide:
Remove the SIM card and ensure the modem is in offline state (AT+CFUN=4) before updating certificates. Uncheck Automatic requests and use AT+CFUN? to read the state.

If that did not help, can you please provide the output from the LTE Link Monitor? Click on the open log file, save it to your computer, and submit here.

Thanks!

Kind regards,
Øyvind

[jseidel]

I've made sure to remove the SIM card and set the state correctly to AT+CFUN=4, that worked. 

The output have I attached.

2020-05-26T06_42_01.259Z-log.txt

Best regards, 

jseidel