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 | iPhone_4.7_15.5_19F77_Restore.ipsw |
| File Size | 4.92 GB |
| SHA256sum | 9bfaeccedb3833c7e3bd7eaff65e9236de33ed246c17f2dc2313a43be1da0fb8 |
| MD5sum | 7dee8aaa2b6eaa7abd948415769be529 |
| SHA1sum | 6206b9830edeb9ad09053b767b8e15eecb51fde9 |
| Identifier | iPhone8,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.7_15.5_19F77_Restore.ipsw and press Enter.