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Revision as of 07:40, 18 April 2015 by Dingo (talk | contribs) (fixing a few mistakes)
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Sund0wn 1.0.2 on Windows 8.1
Original author(s) iSuns9
Developer(s) iSuns9
Initial release 14 Mar 2015 (2015-03-14)
Stable release 1.0.2 / 1 Apr 2015; 6 years ago
Development status Active
Written in C#
Operating system Microsoft Windows XP or greater
Size EXE: 2,468,352 bytes (2.35 MiB)
Available in English
Type Downgrade
License ?

Sund0wn is a downgrade utility which allows tether and untether downgroades for iOS 6.0-7.1.2 for the iPhone 4. It is for the Windows family of operating systems written by iSuns9. It works on all iPhone 4 models. This is useful if you want to use older iOS versions. Even if Apple doesn't sign that firmware anymore, sund0wn creates a restoreable IPSW so that you can install the firmware and tether boot after.


Version History

Version Release date Changes
1.0 14 March 2015
1.0.2 1 April 2015
  • Code improvement.
  • iOS 6 Support

External Links