Working BIOS for an ASUS X555LD mainboard, revision 3.3, sized for an 8 MB (64 Mbit) SPI flash chip and marked as fully working. The image comes in a RAR archive and is meant to be written with an external programmer when the laptop will not boot or a BIOS update has failed. Check that the board revision printed on the PCB matches and that the flash chip really is 8 MB. Back up the original chip first so the serial number and other board data can be restored if needed.
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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →