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]

Thank you for your reports. We are continuously working on fixing this, but have not yet gotten to the bottom of it, as we're struggling to reproduce it on our end.

Best regards,

Simon

[KELD_ELECTRONICS]

I have the same error. I just installed  nRF Connec For Desktop V3.11.1 and Programmer V3.0.3 and after programmer the sniffer_nrf52840dongle_nrf52840_4.1.0.hex file I can´t programmer any more

11:46:27.877

Using @nordicsemiconductor/nrf-device-lib-js to communicate with target via USB SDFU protocol

11:46:27.907

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

The device is a nRF52840 dongle (nrF6829 2.1.0 2021.51)  bought at Mouser Electronics

What can I do to recovre the dongle?

[Simonr]

Is the Dongle in Bootloader mode or acting as a sniffer now? Try pressing the small button on the side of the Dongle and it should start pulsing red (putting it back into bootloader mode). If not you have to recover it as described in the Dongle Programming tutorial.

Best regards,

Simon