Visit the web page at amazon.com/mycd. If prompted, log in to your Amazon account. Eventually, you see the Manage Your Content and Devices web page. 2. They're great tools to help manage your home and interact with your To deregister a device from your Amazon account, follow these steps. To register a device, simply sign into your account on any Amazon app, On the next page, click "Manage content and devices" under the.