https://devzone.nordicsemi.com/f/nordic-q-a/110260/ncs-2-3-0-to-2-4-2-keyerror-when-flashing-in-vscodeHi, We are using the nrf9160 on a custom board, currently using NCS v2.3.0. I have updated our project where required in line with the release notes for NCS 2.4.0, and am able to build with no errors, but attempting to flash the device fails with theen-USTelligent Community 13Tue, 16 Apr 2024 11:29:08 GMThttps://devzone.nordicsemi.com/thread/478949?ContentTypeID=1Tue, 16 Apr 2024 11:29:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3e00145-3f01-4688-9313-f5461c38281bMarkLaloo<p>Thank you,&nbsp;this worked. Previously we referenced the NRF91 family (as opposed to the &quot;--softreset&quot; arg and cortex-m33 (instead of nRF52832) for the device. Is there any reason this no longer works on v2.4.2?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/478934?ContentTypeID=1Tue, 16 Apr 2024 10:44:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d1420b9d-818f-42cc-87bc-0780a25161d6Sigurd<p>Hi!</p> <p>Try the solution in this post:&nbsp;&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/100634/west-flash-failed-with-keyerror-nrf52-with-ncs-v2-4-0-on-ubuntu-22-04/430277">RE: west flash failed with KeyError: &#39;NRF52&#39; with ncs v2.4.0 on Ubuntu 22.04</a>&nbsp; (update board.cmake file)&nbsp;</p><div style="clear:both;"></div>