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 | iPhone4,1_9.3.1_13E238_Restore.ipsw |
| File Size | 1.50 GB |
| SHA256sum | e3c68c5532e924374ed04bf16f71efa5e37bcff23d7bd8e9e4b01ccfb6ea0e3a |
| MD5sum | 009666885e7e19bcbf0137379abd56c0 |
| SHA1sum | 1699e0986e3746644fa16a8f370b0c4b42d8cf9a |
| Identifier | iPhone4,1 |
cd ~/Downloads.idevicerestore -e iPhone4,1_9.3.1_13E238_Restore.ipsw and press Enter.