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

Unsigned IPSWs

✗

Apple TV 4 (2015)

tvOS 15.1 (19J572)

October 25, 2021

3.0 GiB

AppleTV5,3_15.1_19J572_Restore.ipsw

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