: Go to System Settings > System > System Update to ensure your console is running the latest firmware.
If the file was corrupted during the initial transfer, a partial or broken installation will block the game from launching.
Go to System Settings > Data Management > Software > Assassin's Creed: The Rebel Collection > Check for Corrupted Data . assassinscreedtherebelcollectionnspblack install
Ensure your Switch is running the latest version of Atmosphere CFW.
If your custom firmware tools cannot read the package architecture of the game, you need to sync your system keys. : Go to System Settings > System >
: Re-verify the source of the NSP to ensure the "black" install isn't due to a "bad dump" of the original game cartridge. WatchGuard or check your firmware version WatchGuard Support | Download Software & Activate Products
Tip: For this specific compilation, ensure you click "Yes" when prompted to ignore or update firmware requirements to prevent boot crashes. Ensure your Switch is running the latest version
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