nRF54L15 Failing to Flash with NCS 3.0.1 SDK Version

RE: nRF54L15 Failing to Flash with NCS 3.0.1 SDK Version

bvyates — Tue, 01 Jul 2025 16:14:05 GMT

Found the answer here, the version of nrfutil installed for my user and for root were different. So while my standard install was upgraded and showed the expected version, the root user was accessing an older version during the build process. Upgrading the nrfutil application as root resolved the issue.

RE: nRF54L15 Failing to Flash with NCS 3.0.1 SDK Version

bvyates — Tue, 01 Jul 2025 14:41:10 GMT

I don't think the issue has do with WSL and USB in this case. I am able to perform any other USB operations through the nrfutil tool, and as I mentioned I was and still am able to flash images to the device when running on the 2.8.0 release of the SDK from the same WSL environment.

Is there any information you could provide on the specific error thrown by nrfutil? We are not clear on what the 'application core revision info' is or where it would be located that nrfutil is not able to find it.

Error: One or more batch tasks failed:
 - [Probe] Device error: Application core has no revision info, code: Generic

RE: nRF54L15 Failing to Flash with NCS 3.0.1 SDK Version

Menon — Tue, 01 Jul 2025 09:02:16 GMT

Hello,

There are some limitations when using J-Link from WSL. I believe this is due to WSL's limited support for USB devices. This is mentioned in the section on programming the firmware. Also, in this ticket, a workaround was suggested by one of the customers, you can give it a shot.

I believe the issue you reported only occurs on machines running WSL. If that's not the case, please let me know.

Kind regards,

Abhijith

RE: nRF54L15 Failing to Flash with NCS 3.0.1 SDK Version

bvyates — Mon, 30 Jun 2025 21:33:13 GMT

Forgot to mention, this issue is occurring in a Windows Subsystem Linux instance of Ubuntu 22.04. In a separate checkout with the 2.8.0 SDK version, flashing is still working as expected on all boards using the same nrfutil and Jlink tools.

Thanks