Asus K551LN S551LN Rev 2.1 BIOS

BIOS .rar 3.19 MB Shared

BIOS image packed as RAR for ASUS K551LN and S551LN laptops that share motherboard revision 2.1. These two models use a common board, so one dump can serve both if the revision matches. Typical use is recovery of a dead or bricked board by writing the SPI flash directly with a CH341A or similar tool. Read the revision marking on the PCB, as a 2.2 board needs its own file, save the original chip first, and confirm the image size before writing and verifying.

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 (2)

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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