Attempting to Start Scanning after disconnecting as peripheral causes NRF_INVALID_STATEhttps://devzone.nordicsemi.com/f/nordic-q-a/16301/attempting-to-start-scanning-after-disconnecting-as-peripheral-causes-nrf_invalid_stateWe have bots (what I&#39;m calling our device for this question) that play both the peripheral and central role depending on their context (not unlike the relay example; except these bots talk to each other, not other devices). In our code, we do the followingen-USTelligent Community 13Wed, 14 Sep 2016 11:43:52 GMTRE: Attempting to Start Scanning after disconnecting as peripheral causes NRF_INVALID_STATEhttps://devzone.nordicsemi.com/thread/62320?ContentTypeID=1Wed, 14 Sep 2016 11:43:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:30878462-b7dd-4365-b374-edaaf5bb08f0Ole Bauck<p>You are sure you are not in connection phase or there is an ongoing flash operation when you try to start scanning? See <a href="https://devzone.nordicsemi.com/question/15469/how-to-handle-nrf_error_invalid_state-of-sd_ble_gap_scan_start/">this</a> post (if you have not already seen it).</p><div style="clear:both;"></div>RE: Attempting to Start Scanning after disconnecting as peripheral causes NRF_INVALID_STATEhttps://devzone.nordicsemi.com/thread/62318?ContentTypeID=1Tue, 13 Sep 2016 11:58:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0e24c3f8-97db-451c-8d40-219213477e17gortok<p>Elsewhere we are doing FDS write and FDS GC, and scanning fails when one of those operations timeout.</p><div style="clear:both;"></div>RE: Attempting to Start Scanning after disconnecting as peripheral causes NRF_INVALID_STATEhttps://devzone.nordicsemi.com/thread/62319?ContentTypeID=1Tue, 13 Sep 2016 11:34:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:06253733-c23d-4987-932f-9519a206a4aaOle Bauck<p>How do you know it fails due to the <code>NRF_EVT_FLASH_OPERATION_ERROR</code>?</p><div style="clear:both;"></div>RE: Attempting to Start Scanning after disconnecting as peripheral causes NRF_INVALID_STATEhttps://devzone.nordicsemi.com/thread/62317?ContentTypeID=1Fri, 09 Sep 2016 17:34:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2bfab3f8-c202-4862-ab81-0d9d92ec5657gortok<p>bumping because no response.</p><div style="clear:both;"></div>RE: Attempting to Start Scanning after disconnecting as peripheral causes NRF_INVALID_STATEhttps://devzone.nordicsemi.com/thread/62316?ContentTypeID=1Thu, 08 Sep 2016 22:27:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:782cff68-1da5-4597-a730-5d7bf7ef8889gortok<p>I should note that restarting advertising after disconnection always works; but scanning does not, but only as the peripheral, and only when the central initiates the disconnection.</p><div style="clear:both;"></div>