Signed IPSW files can be restored via Finder, the Apple Devices app, iTunes, or idevicerestore. Unsigned IPSWs cannot currently be restored to.

Signed IPSWs

✓

iPhone 2G

iPhoneOS 2.2.1 (5H11)

January 22, 2009

246 MiB

iPhone1,1_2.2.1_5H11_Restore.ipsw

Download

Unsigned IPSWs

✗		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