How to clean an ipod touch?

You will not be able to get the back to look brand-new without replacing the backplate, but you can follow this guide to make the back look like brushed metal using common household products: http://www.members.optusnet.com.au/brushedipod/ If you want to replace the blackplate, there are places that repair iDevices that can do this for you. Search locally to see if there are any shops near by. If there are not, then you can use some online repair shops---one in particular I recommend is iResQ: http://www.iresq.com/ipod-repair/ipod-touch-4/ipod-touch-gen-4-back-case-repair-replacement-service.html Using the iResQ option is pretty expensive ($70). Alternatively, you can buy the backplate and replace it yourself for a much cheaper price ($10) using something like this: http://www.irepair.com/ipod-touch-backplate.html I hope this helps!

Here, this thread will do some good. Hope this helps you. https://discussions.apple.com/thread/1711596?start=0&tstart=0