For digital owners of the Call of Duty: Black Ops Cold War Standard Edition, this upgrade will unlock the Call of Duty: Black Ops Cold War Cross-Gen Bundle, giving access to the Xbox Series X|S version of the game. After upgrade purchase, search in the Xbox store for the Call of Duty: Black Ops Cold War - Cross-Gen Bundle to install the Xbox Series X|S version of the game.

Go to https://www.xbox.com Login to your account Hover over your account link (the top right of the screen) a menu will appear, click on the "Redeem Code" button. On the next page, click "Redeem" Enter your code Click "Confirm" Click "Confirm" again to assign the key to your account.