Signed IPSW files can be restored via iTunes. Unsigned IPSWs cannot currently be restored via iTunes.
| ✗ | iPhone 2G | iPhoneOS 3.1.3 (7E18) | 22nd January 2010 | 238 MB | iPhone1,1_3.1.3_7E18_Restore.ipsw |
| ✗ | iPod touch 3 | iPhoneOS 3.1.3 (7E18) | 22nd January 2010 | 296 MB | iPod3,1_3.1.3_7E18_Restore.ipsw |
| ✗ | iPhone 3G[S] | iPhoneOS 3.1.3 (7E18) | 22nd January 2010 | 305 MB | iPhone2,1_3.1.3_7E18_Restore.ipsw |
| ✗ | iPhone 3G | iPhoneOS 3.1.3 (7E18) | 22nd January 2010 | 239 MB | iPhone1,2_3.1.3_7E18_Restore.ipsw |