A BIOS / firmware dump for Lenovo hardware (board NM-B911). Shared as “Thinkpad E490 E590 NM-B911 CLN OK TESTED (Unlocked) 8TH.rar” — a .rar file, 5.91 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 @THE_BIOS_WORLD. 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.
7-ZipWinRARThe Unarchiver (macOS)
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →