First, ensure that your Roku has indeed been activated. Sign in to your account to verify that your device serial number appears as a linked Roku player. If the serial number is not shown, select “Get a new code” on your TV and then enter the code at roku.com/link.

If your device serial number is listed under “My Account,” try the following to exit the linking screen:

• Click the Home button to go to the Roku home screen.
• Power cycle the device by disconnecting and reconnecting the power adapter.