Backup of both BIOS and EC firmware for the Lenovo L520 laptop, held in a 1.61 MB RAR archive. The name does not give a board number or revision, so compare against your motherboard before use; L520 units were also produced on Quanta boards. Keeping the embedded controller image alongside the main BIOS lets a technician restore power management, charging and keyboard functions when the EC chip is corrupted. Flash each image with an appropriate programmer, check file sizes against the chips, and save the existing contents 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 @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 →