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 3.0 (7A341)

June 10, 2009

229 MiB

iPhone1,1_3.0_7A341_Restore.ipsw

Download

Unsigned IPSWs

✗		iPhone 3GS	iPhoneOS 3.0 (7A341)	June 10, 2009	298 MiB	iPhone2,1_3.0_7A341_Restore.ipsw	Download
✗		iPhone 3G	iPhoneOS 3.0 (7A341)	June 10, 2009	230 MiB	iPhone1,2_3.0_7A341_Restore.ipsw	Download