BIOS dump for the Acer Aspire A315-31 built on board DA0Z8PMB8D0, revision D, packed as a 3.59 MB RAR archive. The ORG tag suggests an original image read from a working machine rather than a modified file. DA0 prefixed numbers follow the Quanta numbering scheme, identifying Quanta as the board maker. Write the image to the SPI flash with a programmer such as a CH341A, but first read and save the existing chip contents, and confirm the image size matches the flash capacity and the PCB carries the same board number and revision.
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 @bioshub. 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 →