https://devzone.nordicsemi.com/f/nordic-q-a/37627/reset-clear-hvn-tx-queueIn my application an nRF52832 acts as a BLE peripheral device which is sending sensor data to an app on a mobile phone. As long as the phone is interested, notification on the relevant characteristic is enabled, the firmware is adding sensor data to theen-USTelligent Community 13Mon, 20 Aug 2018 12:33:20 GMThttps://devzone.nordicsemi.com/thread/144942?ContentTypeID=1Mon, 20 Aug 2018 12:33:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:30267764-bac9-40db-b1d6-b77dcac1a2c5eduard<p>Thank you, Kenneth. I feared that may be the case.&nbsp;I guess I will try your suggestion.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/144937?ContentTypeID=1Mon, 20 Aug 2018 12:20:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b23797a-922c-48c1-9a33-17836243975aKenneth<p>Hi,</p> <p>Unfortunately there is no way to flush/clear buffered notifications.</p> <p>Have you considered instead do this on the application layer? For instance application write to a custom characteristic a command to enable and disable the peer from writing notifications? The CCCD will always be enabled, but the peer will only call&nbsp;sd_ble_gatts_hvx() when the peer write 1 to a characteristic and stop when peer write 0. That way you will receive a few notification after disabling, however when enabling you will not receive any old notifications, since those have already been sent earlier.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>