Asus S400CA REV21.1 25Q64FVSIG

BIOS .rar 3.62 MB Shared

BIOS dump for the ASUS S400CA laptop, revision given as REV21.1, possibly meaning revision 2.1, in a 3.62 MB RAR archive. The name references 25Q64FVSIG, a Winbond W25Q64FV series 64 Mbit (8 MB) SPI flash chip, which indicates the target chip for programming. Use a programmer such as a CH341A with a clip or after desoldering the chip. Back up the existing contents before erasing, and ensure the image is exactly 8 MB so it fits the 25Q64.

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.

All sources (3)

The same file was posted more than once. If one link is dead, try the next.

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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