acer aspireOne AO521 da0zh9mb6d0

BIOS .bin 1.00 MB Shared

BIOS dump for the Acer Aspire One AO521 netbook, taken from a mainboard numbered DA0ZH9MB6D0. That DA0-prefixed number follows the Quanta pattern, so Quanta is the ODM behind the board even though the machine carries the Acer badge. The 1 MB raw image is meant to be written directly to the SPI flash chip with a programmer such as a CH341A when the original firmware is corrupted. Confirm the PCB silkscreen matches DA0ZH9MB6D0, read and keep the original contents first, and make sure the chip capacity is 8 Mbit.

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 @ComputerBIOSBinFile. Enginerys does not host this file.

How to open a .bin file

A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.

CH341A + NeoProgrammer / AsProgrammerflashromRT809F / RT809HTL866II / T48UEFITool (to inspect)HxD (hex editor)

More about .bin files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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