Signed IPSW files can be restored via Finder, the Apple Devices app, iTunes, or idevicerestore. Unsigned IPSWs cannot currently be restored to.
| ✗ | HomePod mini | audioOS 15.4.1 (19L452) | March 31, 2022 | 2.5 GiB | AudioAccessory5,1_15.4.1_19L452_Restore.ipsw | Download |