https://devzone.nordicsemi.com/f/nordic-q-a/7023/how-to-identify-bond-deletionHi, In my application, I would like to take some action, when the bonding is removed from the phone. At the moment I&#39;m using static key for bonding and I see that BLE_GAP_EVT_SEC_PARAMS_REQUEST event gets generated for an attempt to bond with theen-USTelligent Community 13Wed, 13 May 2015 07:11:25 GMThttps://devzone.nordicsemi.com/thread/24788?ContentTypeID=1Wed, 13 May 2015 07:11:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2dee585f-5f29-4fb6-8611-9bf9b756a374sidekick<p>Thank you. Yes, I was trying to distinguish bond deletion with disconnection. But unfortunately, as you&#39;ve mentioned, It is not possible :(</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/24787?ContentTypeID=1Tue, 12 May 2015 17:47:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:86d3e027-a224-43c7-b8f0-5350aa6aba2aMANGO<p>Hi, in short, are you looking a way to distinguish</p> <p>bond deletion from the client(central) and disconnection without deletion?</p> <p>In this case, check one of my questions. <a href="https://devzone.nordicsemi.com/question/29695/hid-keyboard-problems-after-disconneting-and-downloading/">My Q</a></p> <p>I asked a similar thing. The answer for this question is no. You cannot distinguish it.</p> <p>Referencing from the answer from my question, both cases fall into <strong>BLE_GAP_EVT_DISCONNECTED</strong>.</p> <p>Also, both cases set &quot;reason&quot; value of this event as 0x13 (timeout reason).</p> <p>Hope this helped.</p><div style="clear:both;"></div>