To activate your EA key, there are a few options available. You can activate it by downloading the EA client app for PC or on the Electronic Arts website. Here are the steps for each method:

If using the EA client app for PC:

1. Click on “My Collection” and then select “Redeem Code.”
   
2. Enter your game key in the activation field and click “Next.” Ensure that there are no extra spaces before or after your code.
   

If activating the product key on the EA website:

1. Log in to your account and go to the Account Settings page.
   
2. Click on the “Redeem Product Code” button on the left side of the screen.
3. Enter your key in the activation field and click “Next.”