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The U.S. government ordered Apple to produce an IPSW file that would allow investigators to brute force the passcode of the iPhone. [7] The order used the All Writs Act , originally created by the Judiciary Act of 1789 , to demand the firmware, in the same way as other smartphone manufacturers have been ordered to comply.
SHSH blobs are created by a hashing formula that has multiple keys, including the device type, the iOS version being signed, and the device's ECID. [5] [non-primary source needed] When Apple wishes to restrict users' ability to restore their devices to a particular iOS version, Apple can refuse to generate this hash during the restore attempt, and the restore will not be successful (or at ...
Some devices include a backup copy of their firmware, stored in fixed ROM or writable non-volatile memory, which is not normally accessible to processes that could corrupt it. Should the firmware become corrupted, the device can copy from the backup memory to its main memory, restoring the firmware.
iTunes is a media player, media library, and mobile device management utility developed by Apple.It is used to purchase, play, download and organize digital multimedia on personal computers running the macOS and Windows operating systems, and can be used to rip songs from CDs as well as playing content from dynamic, smart playlists.
Deploying solutions based on reboot to restore technology allows users to define a system configuration as the desired state. The baseline is the point that is restored on reboot. Once the baseline is set, the reboot to restore software continues to restore that configuration every time the device restarts or switches on after a shutdown. [3]
In March 2007, iTunes 7.1 added support for Windows Vista, [9] and 7.3.2 was the last Windows 2000 version. [10] Until January 16, 2008 with the 7.6 update, iTunes lacked support for 64-bit versions of Windows. iTunes is currently supported under any 64-bit version of Windows, although the iTunes executable was still 32-bit until version 12.1.
Apple has released various updates to iOS that patch exploits used by jailbreak utilities; this includes a patch released in iOS 6.1.3 to software exploits used by the original evasi0n iOS 6–6.1.2 jailbreak, in iOS 7.1 patching the Evasi0n 7 jailbreak for iOS 7–7.0.6-7.1 beta 3. Boot ROM exploits (exploits found in the hardware of the ...
Development of iPhone OS 1.0 and the first generation of iPhone hardware was a combined effort. Only employees from within Apple were allowed to be a part of the iPhone development team. It was a completely secret project and at the time when the team was selected, even they weren't told what they were going to be working on.