BIOS and EC firmware for the Acer Aspire A315-55 on Quanta board DA0ZAUMB8D0 revision D, in a 4.98 MB RAR with an 8MB image. The EC part controls power sequencing, keyboard and battery charging, so it matters on dead or no-power boards. DA0 numbering follows Quanta. Confirm the board code and revision on the PCB, read and save the original chip contents with a programmer, and verify the write. Note that on many such boards the EC code shares the main flash chip, so check how the files are meant to be used.
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 →