https://devzone.nordicsemi.com/f/nordic-q-a/129326/provision-nrf5340-kmu-externallyIs it possible to provision an nRF5340 KMU through the SWD interface, similar to what nRF docs describe for CRACEN on nRF54-series parts here? https://nrfconnectdocs.nordicsemi.com/ncs/latest/nrf/app_dev/device_guides/kmu_guides/kmu_provisioning_overviewen-USTelligent Community 13Thu, 01 Oct 2026 18:41:16 GMThttps://devzone.nordicsemi.com/thread/571849?ContentTypeID=1Thu, 01 Oct 2026 18:41:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f8cd1e76-3b1a-40bc-b210-b726ebb71918Amanda Hsieh<p>Hi,&nbsp;</p> <p>The key provisioning mechanism on the nRF54L works by flashing a small RAM loader that executes the firmware needed to program the keys into the KMU slots.</p> <p>You can try replicating a similar approach for the nRF5340 by writing a custom RAM loader that calls <code>nrf_cc3xx_platform_kmu_write_key_slot()</code>. While this falls outside our standard support scope, it is a feasible path to explore.</p> <p>Regards,<br />Amanda H.</p> <p><span>&nbsp;</span></p><div style="clear:both;"></div>