Choose an IPSW for the iPhone 4[S]

aka iPhone4,1

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

Signed IPSWs

✓ iOS 9.3.6 (13G37) 22nd July 2019 1.5 GB iPhone4,1_9.3.6_13G37_Restore.ipsw ✓ iOS 9.3.5 (13G36) 25th August 2016 1.5 GB iPhone4,1_9.3.5_13G36_Restore.ipsw

Unsigned IPSWs