If your emulator is giving you a "Keys not found" or "Header decrypt failed" error, check the following:
You will often see these two mentioned together. Here is the difference:
| Console | Key File | Similarity | |---------|----------|-------------| | Nintendo Switch | prod.keys | Full key set, per‑console. | | PlayStation 4 | keys.bin | Contains per‑console PKI keys. | | Xbox One | (encrypted, not exposed) | No user‑accessible key file. | | Wii U | otp.bin / seeprom.bin | Equivalent to prod keys. | switch prod keys
bis_key_00 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX bis_key_01 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX bis_key_02 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX bis_key_03 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX tsec_key = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX device_key = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX master_key_00 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX master_key_01 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX ... titlekek_00 = XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Emulators like or Yuzu (and its successors) aim to replicate the Switch hardware on your PC. However, they do not ship with Nintendo’s proprietary decryption keys for legal reasons. Without a valid prod.keys file, an emulator cannot: Recognize your game library. Decrypt game files (.NSP or .XCI). Boot the Switch system firmware. Prod Keys vs. Title Keys If your emulator is giving you a "Keys
Example fragment:
These keys are often generated or obtained specifically for production environments and are not used in development or testing environments. | | Xbox One | (encrypted, not exposed)
The Switch uses a layered key derivation scheme: