LG R580-U.ARC3BA9 Service Manual page 29

4. Type in Mode Name at the "WIP ID :" then press Enter key (You must use Capital Letter)
(You can see the Model Name in ID Label at the bottom Case of PC: "M/N: LMXX-XXXX")
5. Type in Serial No at the "WIP ID :" then press Enter key (You must use Capital Letter)
(You can see the Serial No in ID Label at the bottom Case of PC: "S/N: 412KIXXXXXXXX"(13digits))
6. You can see the BIOS flash process as below
Ch3. System information
29