https://devzone.nordicsemi.com/f/nordic-q-a/128425/nrf54lm20b---kmu-unable-to-provision-keyHello, I&#39;m having trouble saving signing keys to the KMU on the nRF54LM20-DK. I&#39;m using the build for the nRF54LM20B, as recommended here, so the KMU should be used for this processor: Exercise 2 - DFU with custom keys - Nordic Developer Academyen-USTelligent Community 13Tue, 16 Jun 2026 19:54:17 GMThttps://devzone.nordicsemi.com/thread/568016?ContentTypeID=1Tue, 16 Jun 2026 19:54:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f9b4e792-a62b-4b1b-9cd0-706e2378292eAmanda Hsieh<p>Hi,&nbsp;</p> <p></p> <p><span>I used&nbsp;</span><a href="https://github.com/NordicDeveloperAcademy/ncs-inter/tree/main/l9/l9_e2_sol">l9_e2_sol</a>&nbsp;to test with your&nbsp;<span>configs, built for nrf54lm20dk/nrf54lm20b/cpuapp, and flashed via the VSCode function <img style="max-height:240px;max-width:320px;" alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/Screenshot-2026_2D00_06_2D00_16-145041.png" />. However,&nbsp;</span><span>I cannot reproduce the issue. Here is the test project:&nbsp;&nbsp;<a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/l9_5F00_e2_5F00_sol_5F00_360794.7z">devzone.nordicsemi.com/.../l9_5F00_e2_5F00_sol_5F00_360794.7z</a></span></p> <p><span><img style="max-height:240px;max-width:320px;" alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/Screenshot-2026_2D00_06_2D00_16-144640.png" /></span></p> <p><span>What is the HW version on the white sticker of the&nbsp;nRF54LM20-DK?</span></p> <p><span></span>Regards,<br />Amanda&nbsp;</p><div style="clear:both;"></div>