Signed IPSW files can be restored via iTunes. Unsigned IPSWs cannot currently be restored via iTunes.
✓ | macOS 15.4.1 (24E263) | 16th April 2025 | 16.8 GB | UniversalMac_15.4.1_24E263_Restore.ipsw |
✓ | macOS 15.4 (24E248) | 31st March 2025 | 16.8 GB | UniversalMac_15.4_24E248_Restore.ipsw |
✓ | macOS 15.3.2 (24D2082) | 11th March 2025 | 15.8 GB | UniversalMac_15.3.2_24D2082_Restore.ipsw |