RAR archive of firmware for the Lenovo B50-80 laptop, marked in its name as tested and working, about 3.24 MB compressed. The archive probably holds a BIOS dump and possibly EC firmware; open it with WinRAR or 7-Zip to see what is included. Such dumps are written to the SPI flash with an external programmer to revive boards with no display or boot loops. Even with a test-OK label, confirm the board number printed on the motherboard, check the chip capacity against the extracted image, and save the original contents 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 @biosarchive. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 21 Jun 2017 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | 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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →