BLE audio from nrf5340 to Samsung Galaxy Buds3

[mib383]

Hello. I am trying to implement stable connection between my nordic nrf5340 and Samsung Galaxy Buds3 earbuds. I did it based on ble audio example with two connections (one for each ear). It works, but there is 1 thing. After successfull bonding if I, for example, close the earbuds box then i have disconnection and when I try to reconnect (without reboot, using

bt_conn_le_create(paddresses[0], BT_CONN_LE_CREATE_CONN,

                                BT_LE_CONN_PARAM_DEFAULT,

                                &connections[0]);

) I catch an error in security_changed_cb with code 2. If i ignore this error - i cant to discover sinks with code 5. I have tried a lot of things making device config: 

CONFIG_BT_PRIVACY=y

CONFIG_BT_BONDABLE=y

CONFIG_SETTINGS=y

CONFIG_BT_SETTINGS=y

then load/save params, check bondings... Bonding is ok, it checks, but i cant connect to bonded device.

But there is no result.

What should i try next?

[rhondasamson]

Hello,

The error code you are receiving (code 2 in security_changed_cb) typically indicates a failure in the security process. Make sure to handle this error correctly, as it might affect your ability to discover services or reconnect. Review the logs for more specific error details.