Firewire works but iTunes isn't recognizing 1st, 2nd, or 3rd gen classics. ITunes recognises all other ipods with firewire. : r/IpodClassic
Ipod classic doesn't turn on. It asks to connect to itunes to restore, but the computer doesnt recognize it. Also, diagnosis mode doesn't detect the HD. What can I do? : r/ipod
How to Fix iTunes When It's Not Syncing with iPhone, iPad, or iPod Touch | OSXDaily