nRF5340 Audio DK erased and bricked?

RE: nRF5340 Audio DK erased and bricked?

LuckyWinner — Fri, 24 Jan 2025 18:44:10 GMT

If this does not work for either the --recover version or the programmer app, what is the reason for this and how do I fix it?

I have a total of 3x NRF5340 Audio DK:
1 is configured as gateway (green light)
1 as left (blue light)
1 should be right (light magenta)

The one that lights magenta does not connect to the gateway and when I try to program this Audio DK, it gets stuck at the programming point "Programming net core on": xxxxxxxxxxxxx headset left" (x's are the number ID of the back) even after 1 hour of waiting (the others only took a few minutes).

I have tried to reconnect the device to the PC several times and have also run "nrfjprog --recover" but have also got stuck in the recovery process.

When I plug the Audio DK into the PC, all I get is LED3 flashing (about 500ms off 500ms on) and RGB2 flashing really fast. OBEXT, IFMCU and HUB are also always on. The middle LED is magenta.

There are two USB serial ports (COM27 and COM28) in the Windows device manager.

With "nrfjprog -i" I do not get any number.

And two hours before the device was recognised. in the list of "nrfjprog -i

RE: nRF5340 Audio DK erased and bricked?

Priyanka — Fri, 28 Jun 2024 13:21:24 GMT

Hi Rob,

Hope your issues related to this ticket topic are resolved and I see that you are being followed up in the latest ticket. Closing this issue if that's okay.

-Priyanka

RE: nRF5340 Audio DK erased and bricked?

RobSil — Thu, 27 Jun 2024 23:43:42 GMT

**NOTE** I decided to start a new thread for my current issue, since the Subject line of this thread no longer describes the issue I'm having.

RE: nRF5340 Audio DK erased and bricked?

RobSil — Thu, 27 Jun 2024 21:06:39 GMT

Now that I can flash the board, I'm having trouble with simply getting the sample applications to run. I'm building and flashing my nRF5340 Audio DK's with two sample applications: unicast_audio_client and unicast_audio_server. Each of these are supposed to run from the start and turn on specific LEDs to show the application state (as described in the README files in the respective application folders)

After flashing and then power cycling the board with unicast_audio_server, I get solid green on the LED labeled "OB/EXT" and fast blinking green on the IFMCU on the back side of the board. The RGB led should be either magenta or blue (indicating server Left or server Right config), but it''s OFF. No other LEDs are lit.

After flashing and power cycling with unicast_audio_client, I get the same exact thing. The RGB led should be green to indicate the board is configured as the gateway.

I'm referencing this web page about the LED indications for both server and client modes: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/applications/nrf5340_audio/doc/user_interface.html

I can't find any documentation on the OB/EXT or the IFMCU leds, don't know if these are providing useful information by being lit, and blinking, respectively.

RE: nRF5340 Audio DK erased and bricked?

RobSil — Thu, 27 Jun 2024 20:47:47 GMT

OK, I was able to rename my boards, so I think you can ignore my question above. I'll start a new thread on this ticket to describe my latest issues (app doesn't seem to run).

RE: nRF5340 Audio DK erased and bricked?

RobSil — Thu, 27 Jun 2024 15:43:33 GMT

Thanks for the help! I will try that when I get to the office in a couple hours.

Is it normal for my board to show up as "a number" in the Connected Devices list? In a tutorial video it shows up by name, e.g. "nRF5340 Dev Board" or something like that.

RE: nRF5340 Audio DK erased and bricked?

Priyanka — Thu, 27 Jun 2024 07:48:59 GMT

Hi Rob,

I just noticed from your logs that you might be trying to flash the hex file of nRF52 onto the 5340 Audio DK.

This explains the problem. Please so try with the appropriate 5340 file and let me know how it goes.

-Priyanka

RE: nRF5340 Audio DK erased and bricked?

Priyanka — Thu, 27 Jun 2024 05:33:28 GMT

Hi Rob,

Could you try entering the nrfjprog --recover command in the command window? And then try flashing?

If this doesn't work, could you open the "Programmer" app in the nRF Connect for Desktop application and see if you are able to select the device?

Regards,

Priyanka