Connect mini USB cable to host PC. (Cable from XMOD on marker 25 of TEBF0808-REV2 Component Location picture, the one with green dot, closer to the SoM)
Insert SD-Card with pre-loaded content into SD-Card slot.
Open Serial Console:
COM Port: for correct number see device manager
Speed:115200
Press Core V1 Mini-ITX case power the Power on button on the enclosure.