nrf_dfu_ble: Connected nrf_dfu_ble: Received BLE_GAP_EVT_PHY_UPDATE_REQUEST. nrf_dfu_ble: Received BLE_GAP_EVT_PHY_UPDATE (RX:2, TX:2, status:0) nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE nrf_dfu_ble: max_conn_interval: 12 nrf_dfu_ble: min_conn_interval: 12 nrf_dfu_ble: slave_latency: 0 nrf_dfu_ble: conn_sup_timeout: 600 nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE nrf_dfu_ble: max_conn_interval: 6 nrf_dfu_ble: min_conn_interval: 6 nrf_dfu_ble: slave_latency: 0 nrf_dfu_ble: conn_sup_timeout: 500 nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE nrf_dfu_ble: max_conn_interval: 12 nrf_dfu_ble: min_conn_interval: 12 nrf_dfu_ble: slave_latency: 0 nrf_dfu_ble: conn_sup_timeout: 600 nrf_dfu_ble: Received BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST (request: 517, reply: 247). nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_SELECT (command) nrf_dfu_req_handler: Request handling complete. Result: 0x1 nrf_dfu_ble: Set receipt notif nrf_dfu_req_handler: Handle NRF_DFU_OP_RECEIPT_NOTIF_SET nrf_dfu_req_handler: Request handling complete. Result: 0x1 app: Shutting down transports (found: 1) nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (command) app: timer_stop (0x200022E4) app: timer_activate (0x200022E4) nrf_dfu_req_handler: Request handling complete. Result: 0x1 nrf_dfu_ble: Buffer 0x20003010 acquired, len 141 (244) nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command) nrf_dfu_ble: Freeing buffer 0x20003010 nrf_dfu_req_handler: Request handling complete. Result: 0x1 nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (command) nrf_dfu_req_handler: Request handling complete. Result: 0x1 nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (command) nrf_dfu_validation: PB: Init packet data len: 64 nrf_dfu_validation: Signature required. Checking signature. nrf_dfu_validation: Calculating hash (len: 64) nrf_dfu_validation: Verify signature nrf_dfu_validation: Image verified app: Enter nrf_dfu_cache_prepare() app: required_size: 0xCA84. app: single_bank: false. app: keep_app: false. app: keep_softdevice: true. app: SD_PRESENT: true. app: Bank contents: app: Bank 0 code: 0x00: Size: 0x0 nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE nrf_dfu_ble: max_conn_interval: 6 nrf_dfu_ble: min_conn_interval: 6 nrf_dfu_ble: slave_latency: 0 nrf_dfu_ble: conn_sup_timeout: 500 nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE nrf_dfu_ble: max_conn_interval: 12 nrf_dfu_ble: min_conn_interval: 12 nrf_dfu_ble: slave_latency: 0 nrf_dfu_ble: conn_sup_timeout: 600