https://devzone.nordicsemi.com/f/nordic-q-a/121230/sdk-3-0-1-softdevice-controller-asserti&#39;m migrating my application from nRF53 (SDK 2.6.0) to nRF54L15 (SDK 3.0.1) and i&#39;ve started to get crashes in the soft device. sometimes it reboots without any logs at all and sometimes i get an assert from the SoftDevice. I&#39;m using the nRF54L15-DKen-USTelligent Community 13Tue, 06 May 2025 13:00:04 GMThttps://devzone.nordicsemi.com/thread/534116?ContentTypeID=1Tue, 06 May 2025 13:00:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0a8771b5-b784-41a9-a8f1-1d1a76acb501Kazi Afroza Sultana<p>Hello,</p> <p>It looks like<span>&nbsp;Bluetooth controller firmware detected an internal error and triggered an assertion at a specific file and line (file 48, line 212). It may be the cause of migrating from nRF53&nbsp;(SDK 2.6.0) to nRF54L15 (SDK 3.0.1). Have you checked the migration guide&nbsp;<a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/releases_and_maturity/migration/migration_guide_3.0.html#migration-3-0">https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/releases_and_maturity/migration/migration_guide_3.0.html#migration-3-0</a>&nbsp;and follow the changes in the application?</span></p> <p><span>You can check this&nbsp;<a href="https://docs.nordicsemi.com/bundle/comp_matrix_nrf54l15/page/COMP/nrf54l15/nrf54l15_ic_rev_comp_with_dev_hw.html">https://docs.nordicsemi.com/bundle/comp_matrix_nrf54l15/page/COMP/nrf54l15/nrf54l15_ic_rev_comp_with_dev_hw.html</a>&nbsp;compatibility issue of softdevice controller on different SDK.</span></p> <p><span>Is the nRF Util is updated?</span></p> <p><span></span></p><div style="clear:both;"></div>