1.Please use the prepared boot disk to boot into DOS mode. Then, type in the following commands： afudos /i For example, afudos /ip4c800b.rom, refers to the fullname of the BIOS file. The following shows the procedure of BIOS refreshing. _________________________ How do I find out the fullname of my BIOS file? I typed in the given one, but it said error: can't open rom file.