Ideas and code mostly taken from https://github.com/steamguard-totp/steamguard-shared-secret. Check the original repository for details.
Version remade for Windows and bundled into a self-contained package (see releases).
Specifically tuned for certain program's workflow.
- Enable USB debugging in your phone's settings (follow this guide or google specifics for your own device). Allow installing apps via USB if present as a separate option
- Connect device to pc via USB.
- Run the main.bat file in the program folder and follow the instructions. WARNING: read the printed instructions very carefully as not following some of them may leave you locked out of your steam account.