Can't burn nrf52840 Dongle in Linux with nrfConnect v3.9.1 with Programmer v2.0.1

[MarcelR]

I can't flash/write my nrf52840 Dongle under Linux with nRFConnect v3.9.1 with Programmer v2.0.1

The buttons remain greyed out, the left window does not display any information.

The log says:

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

    Error when fetching device versions: readFwInfo error

When pressing the reset button, the connection is lost, and the dongle not found any more until I replugin.

### Setup:

Debian 11.1
nrfjprog version: 10.15.1 external
JLinkARM.dll version: 7.58b

How can I fix the situation?

I need to install the sniffer_nrf52840dongle_nrf52840_4.1.0.hex

Thank you
Marcel

[adamfowleruk]

I'm experiencing the same issue with the MakerDiary nrf52840 USB dongle on Windows 10 with programmer 2.0.1. Previous programmer versions worked fine - it's purely this version. It's also very slow at detecting devices once plugged in. My dongle is here, and it's attached in DFU mode: https://wiki.makerdiary.com/nrf52840-mdk-usb-dongle/programming/

I'm going to try nrfutil now.

[adamfowleruk]

I can confirm nrfutil cannot communicate over the COM port either. TImes out apparently.

I also note that this version of Programme (2.0.1) programmes nrf52832dk, nrf52840dk successfully, but can neither read, reset, or programme the nrf5340DK. It also doesn't allow you to specify both hex files on nrf5340dk.

It would appear there's something very wrong with this version of the programmer software, or the USB drivers this version installs on the system. Given that I cannot downgrade this app, what are the suggestions here?

[Øyvind]

adamfowleruk, what version of nrfjprog are you running? Please run nrfjprog --version in command prompt.