Firmware archive for the Biostar A55MLC2 board, version 7.1, in RAR form at about 1.4 MB. The name does not list the contents, but it most likely holds a BIOS image matching the board's SPI flash. It helps when the board powers on but fails to POST, or after a bad flash. Write it with a hardware programmer after saving the original chip contents, and check that the revision marking on the PCB and the chip capacity match 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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →