the buttons don't work anymore so I can't choose tracks or go to the menu is this worth repairing? I have my music on it and used a lot when it was working right.
More than likely there’s either a loose connection inside, or a component has simply begun to fail and simply needs to be replaced and you’ll be back in business!
If it’s gonna get cracked open, upgrade it to 256GB or so of solid-state storage. That hard drive is at least 8 years old now… not saying “it’s gonna die tomorrow” but it might 😉 so before you sink money into repair, consider the upgrade too.
Just a small note for anyone seeing this - I was able to fix it, and it ended up being corrosion on a few parts. Replaced the click wheel, the 30-pin dock connector, the five face buttons, the battery connector, and it's working good as new!
7th gen 120 Gb classic. Accidentally disconnected it during synch without ejecting. Now will only synch a few dozen songs before aborting with error messages.