4.1:http://appldnld.apple.com/iPhone4/061-9344.20100922.Urgt43/iPod4,1_4.1_8B118_Restore.ipsw
4.2.1:http://appldnld.apple.com/iPhone4/061-9859.20101122.$erft/iPod4,1_4.2.1_8C148_Restore.ipsw
4.1:http://appldnld.apple.com/iPhone4/061-7941.20100908.sV9KE/iPod3,1_4.1_8B117_Restore.ipsw
4.2.1:http://appldnld.apple.com/iPhone4/061-9860.20101122.Xsde3/iPod3,1_4.2.1_8C148_Restore.ipsw
4.1:http://appldnld.apple.com/iPhone4/061-7937.20100908.ghj4f/iPod2,1_4.1_8B117_Restore.ipsw
4.2.1:http://appldnld.apple.com/iPhone4/061-9855.20101122.Lrft6/iPod2,1_4.2.1_8C148_Restore.ipsw
3.2.2:http://appldnld.apple.com/iPad/061-8801.20100811.CvfR5/iPad1,1_3.2.2_7B500_Restore.ipsw
4.2.1:http://appldnld.apple.com/iPad/061-9857.20101122.VGthy/iPad1,1_4.2.1_8C148_Restore.ipsw