BIOS archive for the Samsung NP-R428 notebook, DA02RU configuration for the Russian market, 1.08 MB in RAR format. No motherboard number or chip type appears in the name. Technicians use such dumps to bring back a laptop with a damaged BIOS by writing the SPI flash with a CH341A or similar programmer. Samsung boards carry a BA41 part number on the PCB, and matching it lowers the risk of a wrong flash. Keep a backup of the existing chip and verify the image size first.
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 @afsbiosfree. 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 →