KMU on nRF54L15 SoC (Custom PCB)

[VitalityVH]

Hey All!


I've been following the nRF Connect SDK Intermediate course from DevAcademy. In exercise 2 of lesson 9, bootloaders, you get to learn how to use KMU (Hardware Key Management Unit) for the nRF54L15, which I am using on a custom PCB, when following the steps, I get stuck on uploading the private key to the SoC.


While executing the command "west ncs-provision upload -s nrf54l15 -k "C:/private keys/new_private_key.pem"", I get the following error:

nrfutil device x-provision-keys --key-file C:\Users\user\AppData\Local\Temp\nrfutil_0ob8elzm\keyfile.json --traits jlink
error: unrecognized subcommand 'x-provision-keys'

tip: some similar subcommands exist: 'x-provision-nrf54h', 'x-provision-nrf54l-keys'

Usage: nrfutil device [OPTIONS] [COMMAND]

For more information, try '--help'.

Uploading failed!

I am using ncs v3.0.1.

Thanks,

Vital