This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 31 March 2016 |
| Upload Date | 30 March 2016 |
| File Name | iPhone6,1_9.3.1_13E238_Restore.ipsw |
| File Size | 1.85 GB |
| SHA256sum | 3b43eb853f62eeb62bef6dc256275d11fbc8a2da6abe69e768d68c4fc32b1efa |
| MD5sum | 9a1c72f1728fe37e457743157b086961 |
| SHA1sum | 961165e9c833c325d68ef15392c82005392b4586 |
| Identifier | iPhone6,1 |
cd ~/Downloads.idevicerestore -e iPhone6,1_9.3.1_13E238_Restore.ipsw and press Enter.