Why won't my Lock Icon switch to iPod?

I started using my iPod to go running so it got sweaty. I use the hold button a lot. Then is started getting stuck on lock, even if I moved the switch back and forth. Sometimes it would unlock and display iPod instead of the lock icon for a split second, but it wouldn't stay unlocked long enough to do anything. Now it never unlocks. I can connect it to laptop, wall charger, or disconnect, it still stays locked.

I've reset the iPod, reloaded all my tunes, but it still stays on lock. I took it apart and it still won't unlock. It is stuck on music with the scrolling covers. Nothing plays. Is there at least a way I can get it to play music?