1 MB binary firmware file named only 77en, with no brand, model or chipset given. The short code may be an internal board identifier, but it cannot be confirmed from the name alone, so open the file in a hex editor and look for model strings first. A 1 MB image fits an 8 Mbit SPI flash chip, commonly used on older desktop boards. Write it only when the target board is certain, check that the chip capacity matches the file size, and back up the original chip before programming 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 @laptopdesktopbiosbin. 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 →