Technically, many games can boot using only prod.keys and title.keys . However, firmware is critical for:
Yuzu does not provide firmware or prod.keys. You must dump them from your own Nintendo Switch console (legal and safe). 👉 Look for “Switch system firmware” (NSP format) – version 17.0.1 or 18.0.0 is widely compatible with recent Yuzu builds. yuzu firmware
The only completely legal way to acquire firmware is to . This requires a "hackable" or modded console using tools like Lockpick_RCM to extract the system software directly from the NAND storage. Technically, many games can boot using only prod