BIOS dump for a Sony VAIO with the board identifier EM_KR522, version V2.0, meant for an 8MB flash chip according to the name. The archive is 4.95 MB compressed, so the extracted image should be exactly 8 MB for a 64 Mbit SPI device. Technicians write such an image with a hardware programmer to revive a board stuck on a blank screen or a corrupted firmware. Match the board code on the PCB, verify the chip capacity, and save the original contents before erasing anything.
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 →