BIOS archive for the Lenovo ThinkPad Edge 13, 557 KB in RAR format. No motherboard number, revision or firmware version is given in the name. ThinkPad firmware recovery usually involves programming the SPI flash with a hardware programmer when the machine is dead or bricked after a failed update. Extract the image, confirm it is the same size as the installed chip, and back up the original first, since ThinkPad dumps can contain serial and supervisor-password data tied to the individual board.
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 →