ASUS X555LD BIOS archive for mainboard revision 3.3, with the name noting the NVIDIA N15V-GM-S-A2 graphics chip and an 8M image, which suggests an 8 MB (64 Mbit) SPI flash. The RAR is about 3.43 MB. Repair shops program such a file with an external programmer to revive boards with corrupted firmware or a failed update. The board revision and the discrete GPU fitted should match before writing, and the original chip should be dumped and saved first so that serial numbers and other unique data can be restored.
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 →