Hi.
SDK s132 15.0.0
IDE IAR 7.80.4
SoftDevices 6.0.0
MCU NRF52832
Windows 8.1 64 bit
I integrated project buttonless DFU in uart_ble. After built project in IAR and got 0 errors. I begin do upgrade and get error.
Function sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL) return error 8.

I have overview of how work buttonless DFU . See video.
Thanks.