ASUS X555LD REV 3.1 WORKING BIOS 100%

BIOS .rar 10.4 MB Shared

BIOS image package for the ASUS X555LD laptop mainboard, revision 3.1, labelled as a working dump confirmed fully functional. The RAR archive weighs 10.4 MB, so it may hold more than one file, such as the raw image plus notes. Technicians use such a dump to recover a board with a corrupted SPI flash by writing it with an external programmer like a CH341A. Confirm the revision silkscreened on the PCB is 3.1, read and save the original chip contents first, and check the image size matches the flash capacity before writing.

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.

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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