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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iPad 1

iPhoneOS 3.2.1 (7B405)

July 9, 2010

457 MiB

iPad1,1_3.2.1_7B405_Restore.ipsw

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