ACER ASPIRE ONE-AO531h

BIOS .rar 647 KB Shared

BIOS archive for the Acer Aspire One 531h netbook, labelled AO531h, at 647 KB in RAR form. The name carries no version, board number or flash size, so check what is inside before relying on it. Raw images are written to the SPI chip with an external programmer to revive units that power up without display. A vendor update file instead needs the original flashing tool. Back up the existing chip first, and compare image and chip sizes before writing.

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.

7-ZipWinRARThe Unarchiver (macOS)

More about .rar files

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

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