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 | iPhone5,3_9.3.1_13E238_Restore.ipsw |
| File Size | 1.59 GB |
| SHA256sum | 64ff1e0600589029777ad9418848ce774d50201baa27f8792550ffe20ad4609c |
| MD5sum | 9a58da8b13c24654605954987017c929 |
| SHA1sum | 2fd9a4133a6d024264197fff6f52d18e36d8940f |
| Identifier | iPhone5,3 |
cd ~/Downloads.idevicerestore -e iPhone5,3_9.3.1_13E238_Restore.ipsw and press Enter.