I POD

A few days ago my friend Chris gave me a I POD nano yah he thoutgh it was broken thats why he gave it to me he said that I have to hit it agains the wall so it will change the song its because the srole is broken all I need to do is shake it and then it will shake when you chose a song you need to lock the I POD cause if you dont it will change and you will prolly be confused no body wants that. The other thing is that you cant go back to the song and you will have to go all around the songs and you mite have about a 1000 songs