Signed IPSW files can be restored via iTunes. Unsigned IPSWs cannot currently be restored via iTunes.
| ✗ | iPhoneOS 1.1.5 (4B1) | 14th July 2008 | 174 MB | iPod1,1_1.1.5_4B1_Restore.ipsw |
| ✗ | iPhoneOS 1.1.4 (4A102) | 22nd February 2008 | 174 MB | iPod1,1_1.1.4_4A102_Restore.ipsw |
| ✗ | iPhoneOS 1.1.3 (4A93) | 10th January 2008 | 174 MB | iPod1,1_1.1.3_4A93_Restore.ipsw |
| ✗ | iPhoneOS 1.1.2 (3B48b) | 7th November 2007 | 166 MB | iPod1,1_1.1.2_3B48b_Restore.ipsw |
| ✗ | iPhoneOS 1.1.1 (3A110a) | 26th September 2007 | 158 MB | iPod1,1_1.1.1_3A110a_Restore.ipsw |
| ✗ | iPhoneOS 1.1 (3A101a) | 11th September 2007 | 158 MB | iPod1,1_1.1_3A101a_Restore.ipsw |