Second copy of the 6730at BIOS image, 2.00 MB in .bin form, with the at suffix left unexplained and no revision data in the name. Having two reads lets you spot a bad dump by comparing checksums or bytes. Open the image in programmer software and write it to the 16 Mbit SPI chip only after saving what is currently on the board. Verify the model and motherboard match, since firmware from a different variant can leave the notebook without display or power.
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 →