Error when fetching device versions: readFwInfo error

[pisquo]

Hi I've just started developing with the nrf52840 and Ive been following the official documentation on how to use the programmer shipped with nRF Connect.

Unfortunately when I select the device in the respective menu I get the following error and I'm not able to do anythin on the soc.

Error when fetching device versions: readFwInfo error

I'm currently using Linux with nrf connect 3.80 and jlink 6.88a (I've tried with nRF Connect 3.9 but I had the exact same issue).

Has anyone managed to solve this problem?

[Simonr]

Yesterday (after my reply) we released a new version of nRF Connect for Desktop (v3.11.1) that have added a fix to the Programmer app, hopefully fixing this issue. Please try with the latest version and let me know if the problem persists.

Best regards,

Simon

[RetiredWizard]

I noticed there has been another new release of the Programmer (v3.0.2).

Now when I select the Device I receive: 

Error when fetching device versions: readFwInfo error (Origin: "Error when running nrfdl_fw_read_info")

[Simonr]

Thank you for your continued error reports. This extended error report might help us find the root cause, although I was told the latest version should fix some of these issues as well. Sorry that was not the case here. I have forwarded this as well to the developers.

Thank you for your patience!

[RetiredWizard]

Thanks for the update

While I was waiting, I thought I'd try and get something working on my Raspbery PI. I've installed the nRF Command Line Tools and tried to flash the UF2 boot loader but I'm getting the following error:

ERROR: No debuggers were discovered.

I also asked the command line tools to display the debugger serial numbers with the following command:

nrfjprog --ids --log

but nothing was listed.

Here is the log from that command:

[RetiredWizard]

Well now I'm thinking the nrfjprog command was attempting to use an external programmer/debugger and that's what the list commands would list, not my nr52 board. I'm not sure if there's a way to have nrfjprog attempt to flash over the usb connection or not.

I did try using the nrfutil dfu command using the usb_serial option but that seems to fail with a "Response Code Invalid" message on the PC and I apparently don't have the correct USB Serial driver loaded on my raspberry because a serial port doesn't appear when I plug in the board.