Newer DLC characters and performance updates are encrypted using newer master keys from Nintendo. If your system keys are outdated, your console cannot decrypt the content.
| Problem | Solution | |---------|----------| | | Reinstall update via DBI (ignore older version). Delete game + reinstall both. | | DLC locked in-game | Ensure base + update + DLC are same region (use USA/EUR/JPN consistent). Use Linkalho to relink Nintendo account on CFW. | | Black screen on launch | Update sigpatches (Atmosphere) or keys/firmware (emulator). | | Onigashima DLC not showing | Need at least v1.6.0 . Download 01008F7008B6800F (DLC 15 – Battle Pack 2). | | Ryujinx DLC missing | Right-click game → Manage DLC → check all are enabled. | one piece pirate warriors 4 nsp update dlc work