BIOS archive for a Lenovo board identified as LF14M with motherboard number 13281-1, a 3.24 MB RAR file. The five-digit number with a dash suffix follows the Wistron numbering pattern, so the board was built by Wistron for Lenovo. Repair shops use such an image to reprogram a corrupted SPI flash chip with an external programmer and clip. Make sure the number 13281-1 on the PCB matches, extract the archive, compare the bin size against the chip capacity, and keep a backup of the original contents before writing.
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 @afsbiosfree. 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 →