Solution:
Step 1: Download prod.keys - Download link || Alternative download link || Mirror Link
Step 2: Replace the prod.keys file:
Open yuzu -> click on file option in left corner -> then click "open yuzu folder" -> then go to "keys" folder and find prod.keys file. replace it with a downloaded file and done. now close and reopen Yuzu the error will go itself.
In some cases, the "Encryption Keys Failed to Decrypt Firmware" error can be resolved by replacing the prod.keys file with an updated version. Visit the Yuzu website or other reliable sources to download the latest prod.keys file. Once downloaded, locate the "keys" folder within the Yuzu installation directory and replace the existing prod.keys file with the new one you downloaded.
Another solution:
1. Update Yuzu and Firmware:
The first step in resolving the "Encryption Keys Failed to Decrypt Firmware" error is to ensure that both Yuzu and your firmware are up to date. Yuzu regularly releases updates to improve performance and fix bugs, while firmware updates are essential for compatibility. Visit the official Yuzu website and Nintendo's official website to download the latest versions of both the emulator and firmware.
2. Delete Existing Keys:
Sometimes, the error occurs due to corrupted or outdated encryption keys. To fix this, navigate to the Yuzu installation folder and locate the "keys" folder. Delete all the files within the "keys" folder, but ensure you have a backup of these files just in case. After deleting the files, launch Yuzu, and it will automatically download and generate new encryption keys.
3. Check the Compatibility List:
Yuzu has a compatibility list that provides information about which games are compatible and which ones may have issues. Visit the official Yuzu website or other reliable sources to check if the game you're trying to play is compatible with the current version of the emulator. If the game is marked as incompatible, you may have to wait for future updates or try alternative solutions.
4. Verify Game Files:
If the error occurs for a specific game, there might be an issue with the game files. To fix this, right-click on the game within the Yuzu emulator, select "Properties," and click on the "Verify Integrity" or "Check for Updates" option. This process will verify the game files and download any missing or corrupted files, resolving potential issues.
5. Disable Antivirus or Firewall:
Sometimes, antivirus software or firewalls can interfere with Yuzu's functioning, causing the encryption error. Temporarily disable your antivirus or firewall software and try launching Yuzu again. If the error is resolved, add an exception or allow Yuzu through your security software to ensure smooth operation without compromising your system's safety.
6. Reinstall Yuzu:
If none of the above methods work, try reinstalling Yuzu. Uninstall the current installation of Yuzu completely, including all associated files and folders. Then, download the latest version of Yuzu from the official website and install it afresh. This method can fix any installation-related issues and provide a clean slate for the emulator.
Conclusion:
Encountering the "Encryption Keys Failed to Decrypt Firmware" error in Yuzu can be frustrating, but with the right troubleshooting steps, you can resolve it and get back to enjoying your favorite Nintendo Switch games on your PC. By updating Yuzu and firmware, deleting existing keys, checking compatibility, verifying game files, disabling antivirus or firewall software, or reinstalling Yuzu, you can overcome this error and ensure a smooth gaming experience. Remember to follow the instructions carefully, and if the issue persists, reach out to the Yuzu support community for further assistance.