Original firmware read from a ThinkPad T470s, packed in an 8.33 MB ZIP archive. The name says only that it is original and gives no machine type, board number or BIOS version. A clean factory dump is handy as a reference or as a recovery image when a board shows no display or will not power on. Before flashing, compare the image size with your SPI chip, keep a backup of the existing contents, and expect to restore the serial data from that backup.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →