Ensure the update NSP region (USA, EUR, or JPN) matches the region of your base game NSP. Mismatched regions will result in the update showing up as a separate, unplayable icon on your home screen. Safety and Best Practices
Play with friends directly using Friend Match or set up Private Rooms with passwords. Technical Specifications: The NSP File
: Launch an open-source title manager (such as DBI, AwwNBL, or Tinfoil) on your custom firmware.
refers to Version 1.1.0 . If you see [v65536] in scene release naming conventions (since 1.1.0 = 65536 in decimal), that is the same update.