Switching between BLE advertising and DTMhttps://devzone.nordicsemi.com/f/nordic-q-a/111652/switching-between-ble-advertising-and-dtmHi there, I&#39;m currently trying to switch from actively advertising to a carrier wave test. This is the code snippet I&#39;m currently debugging on SDK 17.1.0: The code seems to be freezing when I disable the soft device. Is there anything I&#39;m missingen-USTelligent Community 13Thu, 30 May 2024 08:32:27 GMTRE: Switching between BLE advertising and DTMhttps://devzone.nordicsemi.com/thread/486590?ContentTypeID=1Thu, 30 May 2024 08:32:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b389a520-6fb9-428c-b2ce-cdefefe1405bTrystanJ<p>I found my issue. The combination of the BLE NUS example mixed with the DFU service (also from the example code) was the root cause. The last step of disabling the soft device &quot;<span>sdh_state_observer_notify</span><span>(</span><span>NRF_SDH_EVT_STATE_DISABLED</span><span>)&quot; interacted with the&nbsp;</span><span>buttonless_dfu_sdh_state_observer&nbsp;</span>which powered off the micro. Added in an dfu arming boolean (activated in&nbsp;app_shutdown_handler) to prevent it.</p> <p>Kind Regards,</p> <p>Trystan</p><div style="clear:both;"></div>