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 (5G77)

November 17, 2008

246 MiB

iPhone1,1_2.2_5G77_Restore.ipsw

Download

Unsigned IPSWs

✗		iPod touch 2G	iPhoneOS 2.2 (5G77a)	November 17, 2008	278 MiB	iPod2,1_2.2_5G77a_Restore.ipsw	Download
✗		iPhone 3G	iPhoneOS 2.2 (5G77)	November 17, 2008	246 MiB	iPhone1,2_2.2_5G77_Restore.ipsw	Download