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  • Case ID: 280113
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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?

  • 0 in reply to RetiredWizard

    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!

  • 0 in reply to Simonr

    Thanks for the update Smiley

    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:

  • 0 in reply to 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.

  • 0 in reply to Simonr

    Hi I have the same issue and same error I recently updated from 3.6.?? to 3.11.1 and when I selected my device it says need to program the device and then same error as above. I do not have the privilege of an external segger programmer. I even tried to uninstall and install few versions like 3.7, 3.8, 3.9, 3.10 but all have the same issue in fact 3.6 which was working before has also stopped working!!? Please can you help me.

    The device RED LED flashes when start the program and select device - Open DFU Bootloader

    nRF52840-dongle

    PCA10059

    2.0.0

    2021.1

    Raj

  • 0 in reply to rajumar1778

    I have the same problem. Version 3.11.1 run for the first time and a new nRF52840 dongle.

    Error when fetching device versions: readFwinfo error (Origin: 'Error when starting nrfdl_fw_read_info')

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