Signed IPSW files can be restored via Finder, the Apple Devices app, iTunes, or idevicerestore. Unsigned IPSWs cannot currently be restored to.
| ✓ | iPhone 2G | iPhoneOS 2.2.1 (5H11) | January 22, 2009 | 246 MiB | iPhone1,1_2.2.1_5H11_Restore.ipsw | Download |
| ✗ | iPod touch 2G | iPhoneOS 2.2.1 (5H11a) | January 22, 2009 | 278 MiB | iPod2,1_2.2.1_5H11a_Restore.ipsw | Download |
| ✗ | iPhone 3G | iPhoneOS 2.2.1 (5H11) | January 22, 2009 | 246 MiB | iPhone1,2_2.2.1_5H11_Restore.ipsw | Download |