nRF9160 - Can't use LTE Monitor - Can't send AT commands

RE: nRF9160 - Can't use LTE Monitor - Can't send AT commands

José — Mon, 04 Feb 2019 12:47:37 GMT

No luck here :(

I've flashed the modem firmware and nothing.

Really going in circles :(

RE: nRF9160 - Can't use LTE Monitor - Can't send AT commands

JeffW — Fri, 01 Feb 2019 18:28:57 GMT

Jose,
For some reason turning either pressing the reset button to jump through the boot again or turning the power off and back on worked for me -- with the tool open.
I had the same exact issue as you, and it seemed to have just fixed itself with persistence.

Let us know at what step you run into issues with the getting started with SES, and we'll try to help.
Good luck!

RE: nRF9160 - Can't use LTE Monitor - Can't send AT commands

José — Fri, 01 Feb 2019 10:07:37 GMT

Hi JeffW,

you mean, like I have the board disconnected (Off)? No, I can see the output of the board om the tool:

, the board can connect to the cloud and transfer data:

but I can't make any AT Command:

It's clearly something that I'm doing wrong, but I'm not managing to understand what. Also, the flashing is not working for me and I had multiple issues to install Segger Embedded Studio and follow the nRF connect getting started assistant.

I'll try to redo everything and start again.

Thanks.

RE: nRF9160 - Can't use LTE Monitor - Can't send AT commands

JeffW — Fri, 01 Feb 2019 03:39:12 GMT

Jose,
I think power cycling (SW9) fixed this for me. I also tried reloading the firmware using the command line when faced with the the timeout issue.
Not sure which did the trick.
Re-flash instructions:
Using the compiled zephyr.hex in the ncs\nrf\samples\nrf9160\at_client\build\zephyr\zephyr.hex

nrfjprog.exe --program zephyr.hex --sectorerase -r -f nrf91 --verify

Hope you get it working,
Jeff