I'm not sure what hardware version this tablet has, I borrowed it from a family member for a trip I went on. I know it's a Sylvania tablet, and it's 7". I was reading on it one night, and shut off the wi-fi to conserve battery, and the battery died. I put it on the charger, and turned it on the next morning. It booted fine, and as soon as it read the SD card, it locked up. I was unable to do anything with it. I tried using the reset button, and it still locked up. So, I took out the SD card, and it still locked up. I tried a different SD card, and it still locked up. I'm at a loss as to what to do. Any suggestions?