Lenovo firmware extract for board NM-E791, an LCFC (Lenovo's own ODM) number. The hex range in the name, 0x001E6B50 to 0x009E6B50, spans exactly 8 MB, suggesting a UEFI BIOS region cut from a larger image rather than a complete chip dump. It cannot simply be written to a whole flash chip. Insert it at the correct offset with a hex editor or flash tool, keeping the original descriptor and data, and back up the chip first.
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 @sbiosworldchannel. 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 →