Free iOS 4.1 download links; iPhone 4, iPhone 3GS, iPhone 3G, iPod touch
iPhone 3G 4.1 – (iPhone1,2_4.1_8B117_Restore.ipsw) [Download iPhone 3G 4.1 IPSW]
iPhone 3GS 4.1 – (iPhone2,1_4.1_8B117_Restore.ipsw) [Download iPhone 3GS 4.1 IPSW]
iPhone 4 4.1 – (iPhone3,1_4.1_8B117_Restore.ipsw) [Download iPhone 4 4.1 IPSW]
iPod touch 3G 4.1 – (iPod3,1_4.1_8B117_Restore.ipsw)[Download iPod touch 3G 4.1 IPSW]