Issue with NRF52840 DK on NRF Connect for Desktop Bluetooth Low Energy(stand alone version)

RE: Issue with NRF52840 DK on NRF Connect for Desktop Bluetooth Low Energy(stand alone version)

stddev — Tue, 08 Oct 2024 13:36:39 GMT

I observed the same behavior on my DK. Issuing the suggested command, nrfjprog --recover -f nrf52 --log , enables me to re-program DK via nRF Connect Desktop and use it for scanning, etc.

RE: Issue with NRF52840 DK on NRF Connect for Desktop Bluetooth Low Energy(stand alone version)

Priyanka — Mon, 30 Sep 2024 16:54:04 GMT

Hi,

Could you try nrfjprog --recover -f nrf52 --log

And please attach the .log file generated.

-Priyanka

RE: Issue with NRF52840 DK on NRF Connect for Desktop Bluetooth Low Energy(stand alone version)

vatronics — Fri, 27 Sep 2024 14:11:19 GMT

1) J-Link version: V794e
2)nRF Command Line Tools, nRF Connect for Desktop application etc. are up-to-date: All now installed

RE: Issue with NRF52840 DK on NRF Connect for Desktop Bluetooth Low Energy(stand alone version)

Priyanka — Fri, 27 Sep 2024 13:28:30 GMT

Hi,

What is your J-Link verison?

Make sure your nRF Command Line Tools, nRF Connect for Desktop application etc. are up-to-date.

Is your DK being detected by your PC's device manager? What about Programmer? Is you DK being recognized properly there?

-Priyanka

RE: Issue with NRF52840 DK on NRF Connect for Desktop Bluetooth Low Energy(stand alone version)

vatronics — Fri, 27 Sep 2024 10:25:27 GMT

- No i get no prompt to re-program with new firmware
- PCA10056 3.0.0 (2022.11)

-nRF Command Line Tools and everything was reinstalled even on new pc with no previous installation

What is worth to be mentioned is that if i use the Programmer and Erase its memory, and then open the Bluetooth Low energy, some times although i get the same message "Found device type: unknown. J-Link firmware: J-Link OB-nRF5340-NordicSemi compiled" , i am able to scan. But on some devices when i try to access a characteristic i get a loading animation with no results

RE: Issue with NRF52840 DK on NRF Connect for Desktop Bluetooth Low Energy(stand alone version)

Priyanka — Thu, 26 Sep 2024 09:41:33 GMT

Hi,

When you connect you nRF52840DK and go to the Programmer app within the nRF Connect for Desktop, and then select you DK from the dropdown menu on the top left corner, do you get any prompts to re-program with new firmware? If so, please do this.

Which version of the DK are you working with?

Also, make sure your nRF Command Line Tools are up-to-date.

-Priyanka