Signed IPSW files can be restored via Finder, the Apple Devices app, iTunes, or idevicerestore. Unsigned IPSWs cannot currently be restored to.

Unsigned IPSWs

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HomePod mini

audioOS 15.4 (19L440)

March 14, 2022

2.5 GiB

AudioAccessory5,1_15.4_19L440_Restore.ipsw

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