This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 23 January 2023 |
| Upload Date | 11 January 2023 |
| File Name | iPhone_4.7_P3_15.7.3_19H307_Restore.ipsw |
| File Size | 5.02 GB |
| SHA256sum | 9ad83ffe31491756d94b25684018dce8a4fe88451515f81fbd69aa92cf188cbd |
| MD5sum | a3bc964bd2218c83937e3d13a17d5868 |
| SHA1sum | fac96a5fd299c2ecdc13499ae8c692324f76ddc9 |
| Identifier | iPhone9,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.7_P3_15.7.3_19H307_Restore.ipsw and press Enter.