A related [WARN]: Failed to match key "xxx" may also appear. This simply indicates that your prod.keys file contains entries hactool doesn't recognize, which is also generally harmless.
Certain game titles require a specific subset of keys called title keys ( title.keys ). hactool prod.keys does not exist
Since you cannot ask the tool to create one for you, you have two primary methods to obtain a valid prod.keys file. A related [WARN]: Failed to match key "xxx" may also appear
🔴 Confusing for beginners – 3/10 🟢 Clear once explained – 8/10 🛠️ Ease of fix – 9/10 (with correct keys) Since you cannot ask the tool to create
Turn off your Switch, insert the SD card into your PC, and copy the prod.keys file. Step 2: Place the File in the Correct Location
With the keys correctly positioned or targeted, verify that the error is gone by running a basic info command on any Switch file. Open your command prompt or terminal and run: hactool -t nca your_game_file.nca Use code with caution.
Windows frequently hides known file extensions by default. If you manually created or renamed a text file to prod.keys , Windows might have actually named it prod.keys.txt .