Firmware set for the Samsung NP-R428, DA02RU variant, packed into a 1.08 MB RAR archive. The DA02RU suffix looks like a Samsung model code for the Russian market; the name gives no board number, chip type or version. A dump like this is used to recover a laptop that no longer boots due to a damaged BIOS, by programming the SPI chip directly. Read the original chip first and keep that copy. Check the image size against the flash part and confirm the PCB board number before relying on the file.
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 @pepeelectronica. Enginerys does not host this file.
All sources (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @biosbigarchives | 12 Oct 2022 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.