Firmware package for a board marked JINMAO-L with the number 101125-4, revision 1.0, in a 1.75 MB RAR. The name states no brand or laptop model, so identification has to come from the PCB silkscreen itself. Contents are likely a BIOS image for writing onto the SPI flash with an external programmer. Make an exact backup of the existing chip before programming, verify that the board marking and revision correspond, and check that the image size suits the chip capacity, since a mismatched dump will not fit.
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 →