I have a 3GS. The iPod on the phone has made duplicates of some songs. I've tried using the "get info" dialog box to set all the information the same but the dups are still there. Even after erasing all music with iTunes they are still there.

I have a 3GS. The iPod on the phone has made duplicates of some songs. I’ve tried using the “get info” dialog box to set all the information the same but the dups are still there. Even after erasing all music with iTunes, iTunes is empty but they are still on the phone.

Some Users have reported that a Restore as New  has Resolved Issues after the Upgrade...
Backup and Set Up as New Device
http://support.apple.com/kb/HT4137

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