4525A

BIOS .bin 2.00 MB Shared

Duplicate of the 4525A firmware dump with a (2) suffix, 2 MB, raw binary. The name offers no extra detail, such as the board number, BIOS version or whether the ME region was cleaned. Comparing it with the first file shows whether the two reads agree, which is a basic check before any flashing. The image suits a 16 Mbit SPI chip. Read and archive the existing chip, then program and verify this file, but only once the target PCB is confirmed to match the source laptop.

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

    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.

    BIOS · 2.00 MB · 12 Oct 2025
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    2.00 MB
  • 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…

    BIOS · 2.00 MB · 12 Oct 2025
    BIOS bin
    —
    2.00 MB
  • 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
    BIOS bin
    —
    2.00 MB