HT4865: iCloud: iCloud security and privacy overviewLearn about iCloud: iCloud security and privacy overview
Currently Being ModeratedNov 27, 2012 10:30 AM (in response to Sophie.J)
If you cannot remember the passcode, you will need to restore your device using the computer with which you last synced it. This allows you to reset your passcode and resync the data from the device (or restore from a backup).
If you restore on a different computer that was never synced with the device, you will be able to unlock the device for use and remove the passcode, but your data will not be present
Connect the iPod to your computer and restore via iTunes. Place the iPod in Recovery Mode if necessary to allow the restore.