In Tinfoil, go to , select sdmc:/ , and navigate to your folder.
Place the game and update files into a folder on your SD card (e.g., /nsp/ ). Open or Goldleaf on your Switch. Splatoon 3 Switch NSP/XCI [Update v2.1.0]
On your PC, open the Switch drive and navigate to the folder. In Tinfoil, go to , select sdmc:/ ,
Open the tool and add your Splatoon 3 base file and the v2.1.0 update. Choose the option to or Repackage as XCI . Splatoon 3 Switch NSP/XCI [Update v2.1.0]
You can use several homebrew tools to install these files directly on your Switch. Using DBI (Recommended for PC Transfer)
This guide explains how to install and update Splatoon 3 on a modded Nintendo Switch using NSP or XCI files, specifically targeting the v2.1.0 update. Understanding File Types