Firmware for the Casper A15YA notebook, board revision 2.1, prepared for the Discrete graphics configuration as stated in the name. Casper laptops often ship in both dedicated-GPU and integrated UMA versions, and the firmware differs, so pick the image matching your board's populated GPU. The 7z archive needs 7-Zip or a compatible extractor. Flash it to the SPI chip with a programmer after backing up the original, and check the image size matches the chip capacity before writing.
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 @biosfiles. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →