Choose an IPSW for iOS 3.1.3

Signed IPSW files can be restored via iTunes. Unsigned IPSWs cannot currently be restored via iTunes.

Unsigned IPSWs

iPhone 2G iPhoneOS 3.1.3 (7E18) 22nd January 2010 227.28 MB iPhone1,1_3.1.3_7E18_Restore.ipsw
iPod touch 3 iPhoneOS 3.1.3 (7E18) 22nd January 2010 282.16 MB iPod3,1_3.1.3_7E18_Restore.ipsw
iPhone 3G[S] iPhoneOS 3.1.3 (7E18) 22nd January 2010 290.99 MB iPhone2,1_3.1.3_7E18_Restore.ipsw
iPhone 3G iPhoneOS 3.1.3 (7E18) 22nd January 2010 228.06 MB iPhone1,2_3.1.3_7E18_Restore.ipsw
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