BIOS image for a CQ41-209TU, a Compaq Presario CQ41 model designation; the name gives no board number. The binary is 4 MB, matching a 32 Mbit SPI flash chip. CQ41 machines were built on more than one board, so check the PCB number and compare it with strings inside the file before writing. Use an external programmer, dump and keep the original contents first, and verify after programming so the board does not end up with no display or no boot.
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 →