Signed IPSW files can be restored via iTunes. Unsigned IPSWs cannot currently be restored via iTunes.
| ✗ | iPhone 3G | iPhoneOS 2.2.1 (5H11) | 22nd January 2009 | 258 MB | iPhone1,2_2.2.1_5H11_Restore.ipsw |
| ✗ | iPhone 2G | iPhoneOS 2.2.1 (5H11) | 22nd January 2009 | 258 MB | iPhone1,1_2.2.1_5H11_Restore.ipsw |
| ✗ | iPod touch 2G | iPhoneOS 2.2.1 (5H11a) | 22nd January 2009 | 291 MB | iPod2,1_2.2.1_5H11a_Restore.ipsw |