I have a Motorola Droid Bionic with Verizon which I've used for the last 2 years. I turned it off last night to conserve battery power and now it wont turn on. There is no light, boot screen, charge screen, or anything. I have tried a wall charger, factory usb cable, and car charger, and still get nothing. I have reseated the battery and both cards. what can I do to get it working? Do I need to replace the battery?