12-26-2011 10:06 AM
We had the same problem with my son's 4th generation ipod touch. It charged but wouldn't produce sound. I then removed the protective cover from his ipod and it worked. (His cover is a hard one.) I guess being able to push it slightly further onto the contact made a difference. When I tried my iphone on it, which has a soft, flexible cover, it worked just fine. It's not convenient (or easy for a kid) to remove a hard cover, but at least it works. I suppose I'm going to purchase a soft cover for the ipod touch and see what happens.
12-28-2011 12:12 PM
Like osu1991 said, sometimes the protective casings can prevent a full connection with the adaptor, since it's happening on multiple docks you may also want to try resetting the iPod: http://support.apple.com/kb/ht1320