Highlight the Mario vs. Donkey Kong icon on the Home Menu .

Before we discuss how to make the update work, let’s clarify the file types:

Nintendo frequently releases post-launch patches to fix bugs, improve performance, or add stability. These updates are also packaged as NSP files. They do not contain the full game, but rather overwrite or add to the base game files.

Follow these exact phases to fix black screens, boot loops, or error codes when updating your game. 1. Match Your Firmware and Keys