Problem when connecting to nRF52840 Dongle

[Ala19]

Hi,

I recently received my nRF52840 Dongle, Started to connect it via USB to my desktop computer (windows 11)

Then started nRF Connect for Desktop v4.0.0 and then selected nRF Connect Programmer Official, v3.0.7.

Then I wrote a hex file to the Dongle

After that, when I click 'SELECT DEVICE'. I receive this error:

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

10:28:24.193 Error when fetching device versions: No matching plugin found for operations to execute (Origin: "Error when starting operation: fw-read-info")

How can I fix it!

Regards

Ala

[Ala19]

Problem Solved 

[Bk37]

How did you fix it?

[Hung Bui]

@BK37: Please be aware that the OpenThread firmware doesn't have automatic switch to DFU mode supported. 

To be able to re-program the dongle you would need to press the side button label "RESET" so that the board enter DFU mode (the LED breathing red) Then you can program the dongle. 

[CartBlanche]

Hung Bui If I have the OpenThread firmware (ot-rcp.hex) installed on the dongle and plugged into my Rasperry Pi, when I type dmesg I get the error "netlinnk: `otbr-agent`: attribute type 8 has an invalid length." Is this expected behaviour or has something gone wrong?

For context, I'm basically trying to get Matter light_switch demo connecting to the Matter light_bulb demo, so that I can use the light_switch demo to control the light_bulb demo via Apple Home. So am I doing something wrong?

[Hung Bui]

@Dominique: Please create a new ticket as your question is not really related to DFU.