Ryujinx is a high-level Nintendo Switch emulator. To protect its software, Nintendo uses proprietary encryption. "Prod keys" (production keys) are the digital signatures required to unlock that encryption.
Once you have your prod.keys file, adding it to the emulator is simple: Open . Click on File in the top menu. Select Open Ryujinx Folder . Navigate to the System folder. Paste your prod.keys file inside this folder. Restart Ryujinx. Common Errors and Troubleshooting prod key ryujinx
Your prod keys must match or be newer than the version of the firmware you are trying to install. If you update your firmware, you usually need to re-dump your keys. Ryujinx is a high-level Nintendo Switch emulator