If you have a leather case on your Kindle; Please remove it before performing the steps below.
Please press and hold down the power button for 25-30 seconds until the Kindle restarts
If that does not work, then please respond back and let me know so I can continue to troubleshoot.
What exactly is not working? What is not appearing on your Kindle?
Are you connected to your home Wi-Fi?
Which Kindle model do you have?
Look here: http://www.oberondesign.com/pages/identify-your-kindle-model
Look at the images to see which model that you have