Follow these steps to fix this problem:
• Log in- Make sure that you have an account with Amazon. So, log in your Amazon account.
• Manage your kindle- Simply navigate to “Your account” menu and then choose “Manage your kindle”. You can find your account in the upper right next to the search bar.
• Manage devices- Go to “manage your devices”. You can track down the option on the left side of the sidebar, which will take you directly to the list of all devices which are associated with the Amazon account.