: Ensure you have your Nintendo production keys in the tool's bin folder.
Are you trying to specific gameplay features within the update, or just looking for the best tool to install it? Nintendo Switch NSP Combination Install Tutorial
If you are looking to combine the base game and the update into a single file for easier installation, you can use tools like (Switch Army Knife).
: Select "Update NSP," choose your Vampyr base NSP, and then select the update NSP file. The tool will generate a combined file in its output folder. 2. Manual Installation
: Highlight the Vampyr icon on the Home Menu, press the + or - button, and select Software Update > Via the Internet [ Nintendo Support ].
For users with an official copy of the game, updates can be managed through the standard system interface:
: Place the NSP files in a folder on your SD card. Open Tinfoil , navigate to the folder, and select "Install".