Switch Prod Keys 14.1.2 ★ Proven
For the older 14.1.2 firmware, a specific set of keys is required. Attempting to use keys from a different firmware version (e.g., 13.2.0 or 18.0.0) will often lead to errors when trying to play games that were created or updated for 14.1.2. When a game's NCA header key can't be found or you see a "Crypto Revision Error," it is almost always because your prod.keys file is outdated or doesn't match the game.