my ipod screen lights whenn it comes on and it only showes the the logo
what should i do
Can you try and connect it to your PC to see if it's recognized by iTunes there? If so, go ahead and restore it.
It might help to put the iPod into Disk Mode first to prevent the iPod from rebooting and/or stopping the boot up process.
Putting iPod into Disk Mode
Retrieving data ...