This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 30 September 2019 |
| Upload Date | 28 September 2019 |
| File Name | iPhone_4.7_13.1.2_17A860_Restore.ipsw |
| File Size | 3.40 GB |
| SHA256sum | 943678018156f358336eefb708ad0522c80f7634328db96fcb6f7f4a00c1e847 |
| MD5sum | 5c247ad50b0bd470ea976c742bc42240 |
| SHA1sum | a90465c172cd77bcb5bf112993c8ee7caba632d1 |
| Identifier | iPhone8,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.7_13.1.2_17A860_Restore.ipsw and press Enter.