Archive for the Lenovo ThinkPad L412 notebook, marked OK tested in the name, meaning the contents were reported as working. The 1.72 MB RAR does not state the board number or whether it holds BIOS, EC or other firmware, so inspect it after extraction. Such dumps are used to restore laptops with corrupted BIOS, no power-on or password issues by reprogramming the SPI chip. Verify the board matches your unit, back up the original chip content, and confirm the file size equals the flash 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 @hrtechno. 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.