E5-551G Amd (Z5WAK LA-B221P rev1.0)

BIOS .rar 4.49 MB Shared

BIOS dump for the E5-551G AMD laptop, on the Compal LA-B221P rev 1.0 board with platform code Z5WAK. The archive is a 4.49 MB RAR and should contain an image for direct SPI programming. Compal ODM boards use the LA-xxxxP format; check the number and revision on the PCB match before flashing. It is useful to recover a unit with no POST or a black screen after a failed update. Save the original chip contents first, and make sure the image size matches the installed flash.

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 @Laptopdesktopbios. 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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