Samsung NP300E5Z BIOS dump, a 4.00 MB raw .bin image. The name identifies the notebook model but gives no board number, revision or BIOS version. A 4 MB file matches a 32 Mbit SPI flash chip, which is what an external programmer would write when the laptop fails to post due to corrupted firmware. Read the original chip twice and compare the reads before erasing it, confirm the chip capacity, and keep in mind that serial number and system data stored in the dump belong to the donor machine.
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 @biosfilebins. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →