Signed IPSW files can be restored via iTunes. Unsigned IPSWs cannot currently be restored via iTunes.
✓ | macOS 12.4 (21F79) | 16th May 2022 | 13.8 GB | UniversalMac_12.4_21F79_Restore.ipsw |
✓ | macOS 12.3.1 (21E258) | 31st March 2022 | 13.9 GB | UniversalMac_12.3.1_21E258_Restore.ipsw |
✓ | macOS 12.3 (21E230) | 14th March 2022 | 13.9 GB | UniversalMac_12.3_21E230_Restore.ipsw |