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Look for a folder named keys . If it doesn't exist, you can create it.
Click on File in the top-left menu and select Open yuzu Folder . yuzu prod keys
If you need help with the next steps, I can guide you through: How to (NSP/XCI files) Setting up firmware files for better compatibility Optimizing graphics settings for your specific GPU Look for a folder named keys
This error usually means your Prod Keys are outdated. When Nintendo releases a new system firmware update (e.g., moving from version 17.0 to 18.0), they often update the keys. If you try to play a brand-new game with old keys, the decryption will fail. You must re-dump the keys from your Switch after updating its firmware. If you need help with the next steps,
By requiring users to provide their own keys, the emulator functions as a neutral piece of software, placing the responsibility of copyright compliance on the end-user. How to Get Prod Keys Legally
Yuzu Prod Keys: A Complete Guide to Understanding, Finding, and Using Them