BIOS firmware for the Acer Aspire 7552G laptop, board number 09945-1M. The pattern follows Wistron numbering, so Wistron built this mainboard for Acer. This small RAR archive of about 890 KB is meant for restoring the SPI BIOS chip with an external programmer when the laptop fails to start. Confirm the number on the PCB matches 09945-1M. Back up the current chip first, and check that the image size equals the flash 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 .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 →