Compressed BIOS dump for a laptop mainboard numbered LA-8221P, with the name also carrying the marking A45V and version V1.0. The archive is described as holding an 8MB BIN image, which suits an 8 MB (64 Mbit) SPI flash chip. LA-xxxxP is the Compal board-numbering pattern, so the brand on the lid may differ from the board maker. Before writing with a programmer such as a CH341A, read and save the original chip contents, confirm the PCB number matches, and check that the image size equals the chip capacity.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →