As with most technology, you may, at times, experience freezing or slow response on your Kindle Paperwhite. Most often, the solution is simple. Try these steps if your Kindle freezes up on you.
From the Home screen, tap and hold down on the item.
A pop-up menu appears, with several options.
Tap the Remove from Device option or the Delete This Sample option (for samples).
The e-book or sample is removed from your Kindle Paperwhite.
Restart your Kindle Paperwhite by pressing and holding the power button for 45 seconds (7-15 seconds for a second-generation Kindle Paperwhite).
Try reading other content to see whether the symptoms have cleared up. If so, you can try downloading the e-book again from Amazon by selecting it from the Cloud on your Home screen or sideloading it to your device from your computer.
If you are facing these types of problem like screen frozen issues , kindle wi-fi issues, slow downloading process, problem in registration so, you can contact and get the solution of all your quieries call @ +1-888-722-1558