BIOS for a board identified as MT40II1, revision C1, packed in a 3.06 MB ZIP. No laptop brand or model is named, so the board code and revision printed on the PCB are the only reliable way to confirm compatibility. Such dumps are used to reprogram the SPI BIOS chip with a hardware programmer when a unit fails to boot or display after corruption. Extract the archive, compare the image size with the chip marking, and read and store the original chip contents before erasing in case the dump does not work.
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 →