An archive of repair files for Lenovo hardware. Shared as “ThinkBook 13s-IML BM5918_REV1.3A ( BM5918 ).7z” — a .7z file, 10.2 MB.
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 @Satale_bios_esquemas_Laptop. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
7-ZipWinRARKeka (macOS)