This is the official SuperFW documentation. If these docs are incomplete or incorrect, you might contribute fixes to its git repository.

We recommend checking the firmware install section and the getting started section.

Should you have any issues, please check the Troubleshooting docs

Learn more about SuperFW’s features such as:

You can also report bugs or non-working games, but make sure to read the known issues section first.

There are a bunch of other websites where you can get help and help others using retro consoles.