"Scanning..." The drone hummed, a low, vibrating sound that filled the small, cluttered workshop. "Negative. No compatible NCA signatures found."
This requires matching Title IDs and SDK versions. Incorrect repacking can brick game functionality.
Ensure your prod.keys are up to date. If your keys are older than the firmware required by the game, the emulator may fail to decrypt the NCA headers, resulting in a "missing" or "bad" NCA error.
| Method | Success (bootable) | Partial (installs but crash) | Failed | |--------|--------------------|-------------------------------|--------| | Manual rebuild with correct Program NCA | 16 (73%) | 4 | 2 | | TMD patching | 0 | 18 | 4 | | Hex bypass in Goldleaf | 0 | 0 | 22 |
Below is a comprehensive guide to why this happens and how to fix it for emulators like Yuzu or Ryujinx, as well as on modded hardware. Common Causes Launching an Update/DLC as a Game: