Lenovo BIOS dump in a RAR archive, marked for FT4SMTS with an 8 MB flash size given in the name. FT4SMTS reads like a board or project code, so confirm it against the marking on your mainboard before use. The image is meant to be written to the SPI flash chip with a hardware programmer. Always read and back up the original chip first, and check that the dump size matches the 8 MB capacity of the installed chip, since an image of the wrong size will not fit.
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 @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →