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 | iPhone13,1_15.5_19F77_Restore.ipsw |
| File Size | 6.00 GB |
| SHA256sum | 6c090c3fa0af3eea8680d0b7826c7512a1df2429a5a7b30cf48563cb74f76f43 |
| MD5sum | 4123688f101cc82e5279deeb0a9f24c1 |
| SHA1sum | 38c2f627dd84e484f1ac20c268a107b97258577a |
| Identifier | iPhone13,1 |
cd ~/Downloads.idevicerestore -e iPhone13,1_15.5_19F77_Restore.ipsw and press Enter.