This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 19 September 2019 |
| Upload Date | 27 August 2019 |
| File Name | iPhone_4.7_P3_13.0_17A577_Restore.ipsw |
| File Size | 3.68 GB |
| SHA256sum | e1cc6d920d205a1803c80df064ada55a6ab0696b2a4c06d8ed0a45fa33c6772e |
| MD5sum | cc51fb41d395629d444feaf4385250cd |
| SHA1sum | 83b000903d8d1b692d0b22f3c198143bec828d07 |
| Identifier | iPhone9,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.7_P3_13.0_17A577_Restore.ipsw and press Enter.