BIOS & EC B5W1A B7W1A LA-D641P (REV 1A)

BIOS .zip 3.60 MB Shared

BIOS and EC firmware pair for Compal projects B5W1A and B7W1A on board LA-D641P at revision 1A, in a 3.60 MB zip archive. Compal uses the LA- numbering scheme and the project codes identify the platform variants sharing this board. Including the embedded controller image allows recovery from power, charging or keyboard faults caused by a corrupt EC. Read and save both original chips with a programmer before writing, confirm revision 1A on the PCB, and check each image against its chip size.

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.

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

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