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 | iPhone7,1_9.3.1_13E238_Restore.ipsw |
| File Size | 2.08 GB |
| SHA256sum | 1b33901cbc89788a68ed7b9cdd31446625860f96abde45e4b74fe9f02f97aa43 |
| MD5sum | a271cc07eab983c93864407a4cee238a |
| SHA1sum | e1caf22a6622cff140e0500573b1e60f7a29ccf2 |
| Identifier | iPhone7,1 |
cd ~/Downloads.idevicerestore -e iPhone7,1_9.3.1_13E238_Restore.ipsw and press Enter.