Asus K551LN S551LN Rev 2.1 BIOS

BIOS .rar 3.19 MB Shared

Firmware archive for the ASUS K551LN and S551LN motherboard revision 2.1, stored as a 3.19 MB rar file. The name gives no ME or chip details, so look inside the archive to see what image it provides. Such dumps are written to the SPI BIOS chip with an external programmer when the notebook stays on a black screen or refuses to boot after a bad flash. Check the revision printed on the PCB, read and save the existing chip first and make sure the image size matches the chip capacity.

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 (4)

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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