This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 16 May 2022 |
| Upload Date | 11 May 2022 |
| File Name | iPhone12,8_15.5_19F77_Restore.ipsw |
| File Size | 5.55 GB |
| SHA256sum | 14b12c4b9db0748957ac7e9854a8d59eafde46168ded4bd72e85e24fbd986824 |
| MD5sum | 25e56933d1182f039c5f8190494e797b |
| SHA1sum | 796349a1340beaae0778507270a1ec1b57d74f62 |
| Identifier | iPhone12,8 |
cd ~/Downloads.idevicerestore -e iPhone12,8_15.5_19F77_Restore.ipsw and press Enter.