BIOS image for the Acer Extensa EX215-53 notebook, mainboard DAZAUIMB8C0 revision C, stored in a 5.89 MB RAR archive. The DA prefix with MB8 code is the Quanta board-numbering style, meaning Quanta manufactured this board for Acer. Write it to the SPI flash chip with a programmer when the laptop fails to boot because of corrupted firmware. Before doing so, read and keep the original dump, which holds serial and system identifiers, and check that the board revision and the flash chip capacity match the file.
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 →