https://devzone.nordicsemi.com/f/nordic-q-a/5249/manage-wrong-passkeyHi, I am try to manage situation when a wrong PIN code is provided from Master control Panel. Using an NRF51822 with S110 I receive this code: BLE_GAP_SEC_STATUS_CONFIRM_VALUE wich is what I espected, but if I try to send a disconnection : en-USTelligent Community 13Tue, 27 Jan 2015 15:55:58 GMThttps://devzone.nordicsemi.com/thread/18383?ContentTypeID=1Tue, 27 Jan 2015 15:55:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:caa02868-e64a-4977-94f8-08773fc9b76dHung Bui<p>Hi Lorens,</p> <p>Are you sure you received NRF_ERROR_INVALID_STATE instead of NRF_ERROR_INVALID_PARAM ? As mentioned in the sd_ble_gap_disconnect() description, there are only 2 disconnect reasons accepted : BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION and BLE_HCI_CONN_INTERVAL_UNACCEPTABLE</p> <p>(SDK v7.2)</p><div style="clear:both;"></div>