https://devzone.nordicsemi.com/f/nordic-q-a/110648/how-to-diable-and-restart-softdevice-on-nrf552840I need to run a time-sensitive application on the NRF52840 platform, hence I require disabling and re-enabling the softdevice. After successfully disabling and re-enabling the softdevice, when running ble_advertising_init, an ERROR 12289 [Unknown erroren-USTelligent Community 13Mon, 29 Apr 2024 12:32:07 GMThttps://devzone.nordicsemi.com/thread/481082?ContentTypeID=1Mon, 29 Apr 2024 12:32:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bc5f1a98-b05b-4bf6-a5ec-99a6a8a66811J&#248;rgen Holmefjord<p>Hi,</p> <p>The error code&nbsp;<span>12289&nbsp;(0x3001) corresponds to</span>&nbsp;<a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s140.api.v7.2.0/group__ble__err.html#ga521db6a097589b80939d76cb453fad3c">BLE_ERROR_NOT_ENABLED</a>. This means that the SoftDevice have not yet been enabled. It is possible that the process of enabling the SoftDevice is not yet completed (<span>nrf_sdh_enable_request() is asynchronous, and completion is indicated by the&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/group__nrf__sdh.html#gga6a92f798d247ada5b1290e8a03bbc169adb2735f3bfedba16b3369d5c98691fae">NRF_SDH_EVT_STATE_ENABLED</a>&nbsp;event). You can also use the&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/group__nrf__sdh.html#gafeb65d7fc5d540caef6549d430a36ca3">nrf_sdh_is_enabled</a>() API to check the current state of the procedure and wait for it to complete before calling other SoftDevice APIs.</span></p> <p><span>Best regards,<br />Jørgen</span></p><div style="clear:both;"></div>