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

Signed IPSWs

✓

iPod touch 1G

iPhoneOS 1.1.5 (4B1)

July 14, 2008

166 MiB

iPod1,1_1.1.5_4B1_Restore.ipsw

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