Ipod nano 8GB doesn`t work

Hold down the middle button and the top of the scroll wheel until you see the apple symbol. Keep holding the middle button then hold down the bottom of the scroll wheel. This will reset the iPod so that it will work. If the scroll wheel is still not working, take it to the place you purchased it or if it is in the area, find a local Apple Store and take it to them. They will be able to assist as well.