System BIOS dump for a Lenovo E460 class laptop on the LCFC NM-A551 motherboard, packed as a 4.05 MB rar archive. The leading B in the name is not explained, so treat the model token with some caution and rely on the board number printed on the PCB. An image like this is written to the SPI flash with an external programmer when the laptop fails to POST after a bad update or chip corruption. Save the original contents first, since serial number and other unique data may need to be transferred.
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 →