https://devzone.nordicsemi.com/f/nordic-q-a/19957/ble-disconnectI use below code to disconnect the BLE device from mobile phone. But it return err_code =7. Please comments. if(m_conn_handle!=BLE_CONN_HANDLE_INVALID) { LocalInitiateddDisconnect = true; err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTIONen-USTelligent Community 13Thu, 23 Feb 2017 13:06:32 GMThttps://devzone.nordicsemi.com/thread/77654?ContentTypeID=1Thu, 23 Feb 2017 13:06:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b87fba53-f0aa-43d7-a433-81d5c69c500aAlex<p>May be you have more than one declaration of m_conn_handle, one of them is global and second one is static?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77658?ContentTypeID=1Thu, 23 Feb 2017 12:24:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5a7ba322-22cb-4e1d-804d-1ecabaf34335Petter Myhre<p>7 is NRF_ERROR_INVALID_PARAM, so it is probably m_conn_handle that is invalid. I&#39;m not sure why, and it is a bit difficult with the amount of information you have given.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77657?ContentTypeID=1Thu, 23 Feb 2017 11:50:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ab9ff69c-a832-47cf-a0c7-93058534ead8Fiske<p>I am using the ble_uart_app example, and the m_conn_handle is the variable used in the app.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77656?ContentTypeID=1Thu, 23 Feb 2017 11:47:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:61c4a2f6-7545-4582-a01b-1ba891cd0d2aFiske<p>I am using S130 nRF5_SDK_12.0.0, Just don&#39;t know why the m_conn_handle value is Error (col 1): unknown or ambiguous symbol. m_conn_handle. I am using IAR.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77655?ContentTypeID=1Thu, 23 Feb 2017 11:22:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d9d16a5f-4d77-4ce0-86ef-18e4dd48878bPetter Myhre<p>What SDK and SoftDevice version are you using? What is the value of m_conn_handle?</p><div style="clear:both;"></div>