https://devzone.nordicsemi.com/f/nordic-q-a/119868/migrating-to-sysbuild-with-custom-board---hangs-in-vector-tableI&#39;m trying to move my nrf9151 project over to sysbuild (SDK v2.9.1) but when I try to use a custom board definition, the code fails to start up. So far I&#39;ve tried debugging this by creating a fresh the zephyr/hello_world example and selecting the nrf9151dken-USTelligent Community 13Mon, 17 Mar 2025 14:50:00 GMThttps://devzone.nordicsemi.com/thread/527690?ContentTypeID=1Mon, 17 Mar 2025 14:50:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:20105a35-4e97-4391-8947-753a22df93fdsiliconwitch<p>Ah!&nbsp;Found the problem. The&nbsp;<span style="font-family:&#39;courier new&#39;, courier;">nrf9151dk/nrf9151/ns </span>target selects:</p> <div> <div><span style="font-family:&#39;courier new&#39;, courier;">board_runner_args(jlink &quot;--device=nRF91<strong>60_xxAA</strong>&quot; &quot;--speed=4000&quot;)</span></div> </div> <p></p> <p>inside <span style="font-family:&#39;courier new&#39;, courier;">board.cmake</span>, whereas when creating a new nRF9151 based board, this becomes:</p> <div> <div><span style="font-family:&#39;courier new&#39;, courier;">board_runner_args(jlink &quot;--device=nRF91<strong>51_xxCA</strong>&quot; &quot;--speed=4000&quot;)</span></div> </div> <p></p> <p>Changing this back&nbsp;to <span style="font-family:&#39;courier new&#39;, courier;">9160_xxAA</span> fixed the issue. Not sure if this is bug, or just not supported yet, but everything seems to be working again</p><div style="clear:both;"></div>