Older Black and White Nook Unresponsive? Help!?

Call Barnes & Noble customer service right away and see if they can help you. You may just have a faulty nook. In that case, they should send you a new one for free. But don't take my word for it. You could also talk to a worker at a Barnes & Noble store. Make sure to take the nook with you if you visit a store. Sorry I have no DIY answer.