This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 03 April 2017 |
| Upload Date | 01 April 2017 |
| File Name | iPhone_7Plus_10.3.1_14E304_Restore.ipsw |
| File Size | 2.56 GB |
| SHA256sum | 8ceee1393e0a66a7323e171ffbfcf995137e9594135d7d25bb440d7a51a0808f |
| MD5sum | b3d6c36fe86be46b20eaa70e6d40825a |
| SHA1sum | 5bac99bb83a6528d9ecd81738f6cf32ae6a26cec |
| Identifier | iPhone9,4 |
cd ~/Downloads.idevicerestore -e iPhone_7Plus_10.3.1_14E304_Restore.ipsw and press Enter.