My Ipod video (5th generation) does not scroll. I guess the wheel is not working. I was able to reset and it works on a dock.
If none of the 5 R's are able to resolve the issue, it's likely a hardware issue, meaning you'll need to have the iPod serviced/replaced either by Apple or a third party service. The clickwheel needs replacing.
It might help to let the iPod's battery fully drain first and then charge it back up as well before and after working through each of the 5 Rs.
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