Signed IPSW files can be restored via Finder, the Apple Devices app, iTunes, or idevicerestore. Unsigned IPSWs cannot currently be restored to.
| ✓ | iPhoneOS 1.1.5 (4B1) | July 14, 2008 | 166 MiB | iPod1,1_1.1.5_4B1_Restore.ipsw | Download |
| ✓ | iPhoneOS 1.1.4 (4A102) | February 22, 2008 | 166 MiB | iPod1,1_1.1.4_4A102_Restore.ipsw | Download |
| ✓ | iPhoneOS 1.1.3 (4A93) | January 10, 2008 | 166 MiB | iPod1,1_1.1.3_4A93_Restore.ipsw | Download |
| ✓ | iPhoneOS 1.1.2 (3B48b) | November 7, 2007 | 158 MiB | iPod1,1_1.1.2_3B48b_Restore.ipsw | Download |
| ✓ | iPhoneOS 1.1.1 (3A110a) | September 26, 2007 | 151 MiB | iPod1,1_1.1.1_3A110a_Restore.ipsw | Download |
| ✓ | iPhoneOS 1.1 (3A101a) | September 11, 2007 | 151 MiB | iPod1,1_1.1_3A101a_Restore.ipsw | Download |