If a game like The Legend of Zelda: Breath of the Wild prompts for a "System Update," you must install the game's specific update files within the emulator.
Extract the contents directly into your current Cemu folder. Cemu – Emulador de Wii U (Modificado) Actualiza...
Open Cemu and go to > Install game title, update or DLC . If a game like The Legend of Zelda:
Navigate to your update or DLC folder and find the subfolder. Select the meta.xml file to begin the installation. Cemu – Emulador de Wii U (Modificado) Actualiza...
Updating Cemu can be done manually or via an automated check to ensure you keep your settings and saved data.