RAR package with BIOS and EC firmware for a board identified only as NB8609, PCB MB version V6, with an 8 MB system flash. No laptop brand or model is given, so identify the machine by the silkscreen on the board. The archive should hold the main BIOS image, sized for a 64 Mbit SPI chip, and a separate embedded controller file. A wrong or corrupted EC image often causes no power, charging or keyboard faults. Read and save both original chips before flashing, and check that each image matches its chip size.
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 →