BIOS dump for the Kroyer Yeats motherboard, carrying the Wistron-style board number 11277-2 and code 4SV01, in a 2.40 MB ZIP archive. The name states 4MB, which points to the flash chip capacity the image is meant for. Wistron builds boards for several laptop brands, and no brand is given here. Before writing it with an SPI programmer, confirm that the numbers printed on the PCB match, read and save the original chip contents, and check the installed chip is 4 MB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →