https://devzone.nordicsemi.com/f/nordic-q-a/49160/how-to-stop-characteristic-notificationsHi I would like to be able to (force) stop characteristic notifications at some point in time. Imagine a smartphone connects to peripheral and enables characteristic notification for specific characteristic. Everything works fine but but in orderen-USTelligent Community 13Mon, 01 Jul 2019 09:04:36 GMThttps://devzone.nordicsemi.com/thread/195565?ContentTypeID=1Mon, 01 Jul 2019 09:04:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b9e4dd95-0126-4bbe-9a77-64167a95c149Alex Co<p>My fault... I had an app timer in order to answer notify periodicity and I forget to stop it before forcing disconnection. Hence, after forcing disconnection the timer fired and no connection to send the notify value.</p> <p>Thanks</p> <p></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/195486?ContentTypeID=1Sun, 30 Jun 2019 21:34:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:18ca74f9-544d-4fef-be57-34e8a35aea33Andy[quote userid="20031" url="~/f/nordic-q-a/49160/how-to-stop-characteristic-notifications"]Then the execution stream reaches the else above and the firmware stops.[/quote] <p>Why?</p> <p>It looks like you&#39;re on the right path (forcing a disconnection), but I&#39;m guessing that you&#39;re getting stuck in some APP_ERROR_CHECK because of that NRF_ERROR_INVALID_STATE.</p><div style="clear:both;"></div>