Duplicate-named copy of a Lenovo ThinkPad L420 BIOS for Quanta motherboard DAGC9EMB8E0, marked with (1). The 1.47 MB size matches the other upload, but compare checksums, since the contents may differ. Quanta DA-prefixed codes identify platform GC9 and the board version, so check the sticker or silkscreen on your PCB. The image is meant for SPI flash recovery with a programmer. Save the original dump before erasing, because it holds serial and system data.
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 →