BIOS dump in a ZIP archive for a Toshiba Satellite L55 or L557 laptop built on the Quanta board DA0BLIMB6F0; the name also carries the letters BF, whose meaning is not stated. Quanta uses the DA0 prefix for its motherboard numbers, and the board sticker should match before flashing. Extract the image and write it to the SPI flash with a programmer such as a CH341A. Always read and save the original chip first, and check that the image size equals the flash capacity, otherwise the dump will not fit or boot.
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 →