This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 30 June 2015 |
| Upload Date | 26 June 2015 |
| File Name | iPhone4,1_8.4_12H143_Restore.ipsw |
| File Size | 1.45 GB |
| SHA256sum | 103aad3ab3f41cea634e18482e8a2018995fa9d8241c4534aeeb53885b98ca76 |
| MD5sum | 7b437d6c4a5c22f80807bfbd71522391 |
| SHA1sum | ff2b0ba09d0248bf3c5127664582a996e70728f8 |
| Identifier | iPhone4,1 |
cd ~/Downloads.idevicerestore -e iPhone4,1_8.4_12H143_Restore.ipsw and press Enter.