BIOS file of 1.00 MB in .bin format whose name gives only LA-5661, which looks like a Compal board number missing its usual trailing letter. No laptop model, revision or version is given. A 1 MB image usually belongs to an older platform that used a small SPI or LPC flash. Before programming, confirm the full board code printed on the motherboard and check that the chip size is 8 Mbit. Always read and save the original chip contents before writing, so the board can be restored if this dump is unsuitable.
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 @afsbiosfree. 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 →