Working BIOS for the Sony VAIO SVF154B1ET, built on a Quanta motherboard DA0HKBMB6D0 at revision D, and marked 100 percent working. It comes as a 4.47 MB ZIP archive. Quanta board numbers start with DA0 followed by the project code, here HKB, and end in MB plus a revision suffix. Use the image to reprogram the SPI flash chip when the laptop is bricked or will not power on properly. Check that the board code and the revision letter on the silkscreen match, and back up the existing chip before you write to it.
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 →