AFS PROBOOK 440-G4 DA0X81MB6E0 Rev E 25B128CSIG

BIOS .rar 5.04 MB Shared

BIOS firmware archive for the HP ProBook 440 G4 laptop, built on the Quanta-designed board DA0X81MB6E0 at revision E. The name points to a 25B128 flash chip, a 128 Mbit (16 MB) SPI part, as the target. DA0X-style numbers belong to Quanta, the ODM behind many HP ProBooks. Technicians use such a dump to reflash a corrupted BIOS chip with an external programmer such as a CH341A or RT809H. Confirm the PCB marking and revision, and save the original chip contents before writing anything.

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 @afsbiosfree. 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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