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

Signed IPSWs

✓

iPhone 2G

iPhoneOS 1.0 (1A543a)

June 28, 2007

91 MiB

iPhone1,1_1.0_1A543a_Restore.ipsw

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