BIOS image for the Lenovo ThinkPad L420 based on Quanta board DAGC9EMB8E0, revision E, as a 1.63 MB RAR archive. The DA prefix and trailing revision letter mark Quanta's board numbering, with GC9 being the project code. Repair technicians program this file to the BIOS chip with a hardware programmer to fix boot failures from corrupted firmware. Confirm the revision letter on the board and the exact Quanta code, verify the image fits the flash chip, and save a backup of the existing contents before erasing.
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 →