Hi papergril1970,
All of our devices have a One Year warranty. If you device is a GoPhone branded GoPhone, you will need to contact the warranty support line (1-800-801-1101) to have the device replaced.
Where did you buy your device from? You may need to go back to the store you bought it and get it replaced though them. AT&T does not offer insurance or extended service plans for any of the GoPhones.
Hope this helps!