Lenovo laptop BIOS package labelled E4325 together with the firmware version string HJET75WW, following the usual Lenovo pattern of a build code and version number. The RAR archive is 5.25 MB and has to be unpacked to reveal the actual image or images. Repair shops use such dumps to revive a machine with a dead or corrupted BIOS by programming the SPI flash chip directly. Before writing, compare the image size with the chip capacity, check the board number on the mainboard, and keep a backup of the original read.
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 @biosarchive. 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 →