Toshiba firmware archive labelled BL10G, which looks like a Quanta-style project code, though the name gives no laptop model or full board number. The 7z package is 1.62 MB. Compare the BL10G marking with the code on your motherboard before using the image, and inspect the extracted files for more detail. Such dumps are used to reflash a corrupted SPI BIOS chip with a hardware programmer. Save a complete read of the original chip first and make sure the image length matches the chip capacity.
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 @biosfiles. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →