Samsung BIOS dump for board Petronas_13 revision 1.0, read from a Winbond W25Q32 SPI chip, a 32-megabit part holding 4 MB. Petronas is Samsung's internal platform name, and the exact notebook model is not stated. Use a CH341A or similar programmer to restore a corrupted chip. The image should be exactly 4 MB to fit the W25Q32. Read and save the existing contents first, and check that your board label shows Petronas and the same revision.
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 →