4525A

BIOS .bin 2.00 MB Shared

A 2 MB BIOS file labelled 4525A, in .BIN format, most likely tied to the 4525s model family, although the A suffix is not explained. The name gives no board number, revision or firmware version. The size matches a 16 Mbit SPI flash, so the image can be written to a chip of that capacity with a hardware programmer. Use it to recover from corrupted firmware or a failed update. Keep a copy of the chip you remove, and check the board identity 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 @biosfilebins. 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 →

Related files

  • 4525A

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    BIOS · 2.00 MB · 12 Oct 2025
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  • 4525ac

    A second 4525ac BIOS image, marked (2), 2 MB in raw binary form. As with the first file, the meaning of ac is unclear, and the name holds no board number, revision or…

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  • 4525ac

    Firmware dump for a 4525ac, 2 MB in .bin format. The ac suffix is not explained in the name and may mark a variant or a separate read, so treat it with caution.

    BIOS · 2.00 MB · 12 Oct 2025
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