The iOS smart reset is able to skip firmware update if the device has already been factory reset. If device has been factory reset, the AES-256 encryption keys have been securely erased and all the previous user data has been rendered inaccessible.
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The iOS smart reset is able to skip firmware update if the device has already been factory reset. If device has been factory reset, the AES-256 encryption keys have been securely erased and all the previous user data has been rendered inaccessible.