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

[skorz]

I'm facing the same issue with the current Programmer v2.1.1 and nRF Connect 3.9.3

15:05:11.020

Using @nordicsemiconductor/nrf-device-lib-js version: 0.4.1

15:05:11.020

Using nrf-device-lib version: 0.9.8

15:05:11.021

Using nrfjprog dll version: 10.15.1

15:05:11.021

Using JLink version: 6.88a

15:05:15.557

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

15:05:15.565

Error when fetching device versions: readFwInfo error

However, using the manual method with nrfutil works fine.
Possibly because that uses an older version of nrfjprog (10.12.1) that I installed system wide.

[Øyvind]

Hello skorz, 
Your JLink version is farily old. Can you please try to update this as well? If this does not help, please register a new ticket for your issue. This way we can track it to see how many fail with v3.9.3