BIOS archive for the Acer Aspire ES1-572-34NU, which uses the B5W11 platform on a Compal LA-E061P Rev 1.0 motherboard. The ZIP is 9.32 MB and likely holds the SPI image and possibly related files. Compal codes in the LA-xxxxP format identify the board design, and the revision matters, so check that LA-E061P Rev 1.0 is printed on your PCB. Back up the original flash before writing with an SPI programmer, and confirm the image size matches the chip capacity, or it will not fit.
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 →