Without these keys, the emulator cannot "unlock" the game data, even if you have the firmware installed correctly. The Legal Way to Acquire Files
Locate the keys folder. Paste your prod.keys and title.keys files here. download switch bios for yuzu
These are the "production keys" used to decrypt game content. Without these keys, the emulator cannot "unlock" the
Double-check that the files are in the registered folder and not just sitting in the main directory. Without these keys
Using a homebrew tool like Lockpick_RCM to export your unique keys. Using a tool like TegraRcmGUI to dump your system firmware. How to Install Files in Yuzu