This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 13 December 2021 |
| Upload Date | 03 December 2021 |
| File Name | iPhone_5.5_P3_15.2_19C56_Restore.ipsw |
| File Size | 5.57 GB |
| SHA256sum | cd05961b272b1942c9376fcbe4c4c3cb5e731de553389c44421fdf9fea09e836 |
| MD5sum | c996af82e051717b8c0de04e2b3abd9e |
| SHA1sum | cf57aea138329d8d3e0a2d0a4af284d5d22b47ba |
| Identifier | iPhone9,4 |
cd ~/Downloads.idevicerestore -e iPhone_5.5_P3_15.2_19C56_Restore.ipsw and press Enter.