Acer Aspire 5552 BIOS image for Compal mainboard LA-5912P revision 1.0, dated 2010-03-02, packed in a zip archive of about 1 MB. Compal's LA-xxxxP numbering is printed on the PCB, so match it and the revision before use, as the 5551 and 5552 share this board. Reflash with an external SPI programmer after reading and keeping the original contents, and verify the file length equals the flash chip size to ensure the image fits correctly.
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 →