Bricked nRF52840-DK board

RE: Bricked nRF52840-DK board

Denis Pynkin — Tue, 16 Nov 2021 10:43:36 GMT

Right, I already check that and voltage.Seems there is no miracle and I really have a brick on hands.

Kenneth — Tue, 16 Nov 2021 08:30:46 GMT

You can double check if the power switch is working, but it seems like the kit is broken.

Kenneth

Denis Pynkin — Mon, 15 Nov 2021 17:53:58 GMT

same here... 😞

Version on the label on the chip: 2.0.2, 2021.41

Kenneth — Mon, 15 Nov 2021 17:16:44 GMT

Hmm.. getting out of ideas then, what is the version of the board?

Kenneth

Denis Pynkin — Mon, 15 Nov 2021 13:42:23 GMT

Thanks for the suggestion but I've tried that several times before the ticket creation.

As I said above -- the device is not detected as USB device anymore, so there is no SEGGER J-Link interface or block device.

Kenneth — Mon, 15 Nov 2021 12:45:45 GMT

I suggest to try press SW5 while booting again to try to re-program the interface MCU, but this time drag and drop the correct firmware file for the interface MCU:
https://www.nordicsemi.com/Products/Development-hardware/nRF52840-DK/Download?lang=en#infotabs

Best regards,
Kenneth