ipod touck locked. How can I unlock it ?

If you have a passcode to the screen lock that you've forgotten, restore the iPod from the computer to which the iPod is synced. For information and instructions, see:

http://support.apple.com/kb/ht1212

If that will not work, you'll need to put the iPod into Recovery Mode and then try the Restore again:

http://support.apple.com/kb/ht1808

If that still doesn't work, as a last resort try DFU mode:

http://www.iclarified.com/entry/index.php?enid=1034

Regards.

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