Using DBI (the best tool for this job), select "Run MTP Responder." Drag and drop the Base NSP to the "MicroSD Install" folder. Wait for completion.
You can usually drag and drop the Update NSP and all DLC NSPs into your installer at once. one piece pirate warriors 4 nsp update dlc work
One Piece Pirate Warriors 4 NSP Update: DLC Now Live! Using DBI (the best tool for this job),
Some users report that Update v1.6.0 to v1.7.0 installs, but Yamato still doesn't appear. Fix: Go to System Settings > Data Management > Delete Software. Then reinstall in order: Base > Update v1.7.0 > DLC Unlocker. Do not launch between steps. Data Management >