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 (19L440) | March 14, 2022 | 2.5 GiB | AudioAccessory5,1_15.4_19L440_Restore.ipsw | Download |