Repository files navigation

This tool attempts to extract a VBIOS from a bios update
Laptops with NVIDIA Optimus graphics often have the dGPU VBIOS integrated in their system BIOS, this makes extracting the VBIOS a complicated process. Provided you have a BIOS Update for your laptop, this tool might be able to automagically extract all available VBIOS from it.

• Ruby
• bundler(a ruby gem)
• UEFIExtract(note: UEFIExtract can be found in the branchnew_engine)
• rom-parser
• p7zip(optional)
• innoextract(optional)
• upx(optional)

Some dependencies might not offer a package for your linux distribution(like UEFIDump and rom-parser). The binaries can be placed in./3rdparty to avoid having to install them.

• Runbundle install --path=vendor/bundle to install the required ruby modules(once)
• Run./vbiosfinder extract /path/to/bios_update.exe to attempt an extraction
• A temporary working dir is created at./tmp-vbiosfinder which can be removed inbetween runs
• Extracted VBIOS roms will be placed in./output

• ASUS N580GD

• Lenovo y50-70

• Lenovo S5 2nd Gen (20JAA009HH)

• ThinkPad P52

• ThinkPad P72

• ThinkPad T430

• ThinkPad T440p

• ThinkPad T530

• TravelMate P645-SG

• note: if your device isn't listed here, feel free to try this tool and report your results!

Q: There are no files in./output after running the tool!
A: It's very possible that VBiosFinder can't extract your type of BIOS update right now. Feel free to open an issue with a link to your bios update and the program output you get!

• Add option to extract the bios of the running system(can we?)
• Clean up temporary working dir after finishing up done
• Test with more BIOS updates

This project, initially authored by Robin Broda, is licensed under the GNU Affero General Public License v3
A copy of the license is available inLICENSE.txt