hi, i bought a used 128gb ipod touch 6th generation. i updated itunes to the latest version. it would not recognize the ipod until i did that. once done, it was able to copy all my playlists that i wanted, to the ipod. i was able to change the settings. the ipod seems to work. a few of the buttons are lit up. most are not. which is fine - all i really want to do is listen to music. there are 4 buttons on the bottom row. the 4th one has a little musical note on it - so i am guessing that this is the button to push, when you want to listen to music ? when i press it, it says "unable to install music. please try again later". any ideas on where to go from here ?