The likely and simple answer is that your charge cord is faulty. Over time, these cords wear out, especially if they have been bent many times. Try plugging your device in with another charger and see if that solves the problem. If that doesn't work, your charge port may need replaced. If you continue to have problems charging your tablet, refer to the [[Samsung Galaxy Tab 10.1 4G troubleshooting|troubleshooting page]].