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 15.0 (19J346)

September 20, 2021

2.4 GiB

AudioAccessory5,1_15.0_19J346_Restore.ipsw

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