BIOS for the Samsung NP300E4A, labelled Petronas 14 with version 09QA, packed in a 1.62 MB ZIP. Petronas is the internal board name tied to this 14-inch model. The image is for restoring firmware on a unit that does not post or was bricked by a failed update. Flash it with an SPI programmer after reading and keeping the original chip, and check whether the file needs padding or trimming to match the actual chip capacity before writing.
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 →