This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 22 January 2019 |
| Upload Date | 11 January 2019 |
| File Name | iPhone_4.7_P3_12.1.3_16D39_Restore.ipsw |
| File Size | 3.11 GB |
| SHA256sum | 144017bc3b3da9666400a60597fbc229111b38f347459411ba7ada083d367ad8 |
| MD5sum | db4f37305b9b559ea79bd2d3bbb06925 |
| SHA1sum | 958b8a5403f068d7d5ea7db7c6015637006a3778 |
| Identifier | iPhone9,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.7_P3_12.1.3_16D39_Restore.ipsw and press Enter.