A1989 820 00850 A macbook pro 1mb pd & 4mb main bios@dtech369

BIOS .rar 2.64 MB Shared

A BIOS / firmware dump for Apple hardware (board 820-00850). Shared as “A1989_820_00850_A_macbook_pro_1mb_pd_&[email protected]” — a .rar file, 2.64 MB.

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 @dtechbios. 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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