CQ61AC.BIN is a 2.00 MB binary flash image for a CQ61 laptop. The AC suffix is not explained by the name; given related files it may mark an AMD-based variant, but confirm against the board itself. No motherboard number, revision or BIOS version is given. A 2 MB dump requires a 16 Mbit SPI chip, so read the marking on the chip first. Load it in programmer software, keep a verified backup of the original, and only then erase and write, checking the result with a verify pass.
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 →