I got a home for Christmas and it plays my ipod 4g but doesn't charge it so I used another iPod 4g and tried to charge it and it worked
what should I do
Try a restore on your device and see whether it will work. Also, try to check out whether there is a software issue on your device, which might be preventing it from charging. You could seek the help of a repairer if everything else fails.
Well if it works like that, that's good it's actually working