BIOS firmware for the Casper C810 laptop, with D15K and board number 08N1-18Y4Q00 revision 2.2 in the name, archived as an 8.11 MB RAR. Version, flash chip type and tested status are not given. Such images are written to the SPI flash with a programmer like the CH341A to recover a machine that does not post or is stuck after a failed update. Read and keep the original chip contents first, confirm the image size matches the chip capacity, and check the PCB shows 08N1-18Y4Q00 Rev 2.2.
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 →