Sir download ka ng lumang itunes yung blue logo i think version 11 or 12 yun. Tapos download ka ng ipsw for ipod touch 3g ios 5.1 po ang latest nyan. Then irestore or update nyo lang ipod nyo by holding shift + click the update/restore button then select nyo yung dinownload nyong ipsw then tapos wait nyo lang mag restore. Hanap ka nalang tutorial sir madami dyan sa YøùTùbé