Update your Switch firmware (via Daybreak and official servers/AIO tools). Use a tool like to dump your keys again.

Solution 2: Disable "Signature Verification" (Tinfoil Users)

Enter the Konami Code (Up, Up, Down, Down, Left, Right, Left, Right, B, A, Plus). Set this to .

If transferring via USB, use a tool like TeraCopy to ensure the file integrity wasn't compromised during the move.

If you’ve been experimenting with backing up your Nintendo Switch library or installing homebrew content, you’ve likely run into the dreaded Goldleaf or Tinfoil error:

DBI is widely considered the "gold standard" for modern Switch homebrew. It often bypasses minor metadata errors that trip up older apps like Goldleaf or OG Tinfoil. Simply connect your Switch to your PC, launch DBI, select "Run MTP Responder," and drag your NSP into the "Saves/SD Card" window on your computer. Summary Checklist (Check prod.keys version). Is the file corrupted? (Try re-downloading or re-dumping). Is the installer outdated? (Switch to DBI).

Some installers are more sensitive to metadata errors than others. If Goldleaf is giving you the "ProgramType NCA" error, try using .

It’s a frustrating roadblock, especially when you’ve spent time dumping your files. The good news is that this isn't usually a sign of a "broken" console; rather, it’s a specific metadata mismatch. What Does This Error Actually Mean?

90% of the time, this error occurs because you are trying to install a game that requires a higher firmware version than your current file supports. If your keys were dumped when your Switch was on Firmware 12.0, but the game requires 17.0, the installer cannot "unlock" the NCA to see that it is a ProgramType. How to fix it: