Firmware dump labelled x55a, 8.00 MB in binary form; only the model token is given, with no brand, revision or flash chip stated. Confirm that the target board really is an X55A and check the version printed on the PCB. An 8 MB image fits a 64 Mbit SPI flash and is written using an external programmer to revive a dead or bricked board. Read and save the existing chip first, make sure the image size matches, and expect donor-specific serial information inside.
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 @bios_laptop. 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 →