Another copy of a BIOS dump for the Lenovo L420 on Quanta board DAGC9EMB8E0 rev E, sized at 1.63 MB in a RAR archive; the number in brackets suggests a duplicate or alternate version of the same file. Quanta uses this DA-prefixed pattern for its laptop motherboards. Compare contents with other L420 dumps before choosing one, since their data may differ. Write the image to the SPI flash with a programmer, check the PCB revision matches, and read and store the original chip 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 →