If it's not running iOS 7 or above then DFU Restore. Else, try to find a hacker to crack the Apple ID Details :) P.S: Think before trying to keep/sell the device. read more
Ok so a wile ago I bought an Ipod touch 4th generation for only $15.00 from this middle school kid, and when I turned it on it had a lock code on it, so it was apparently stolen. read more