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Revision as of 22:43, 23 July 2010 by Dialexio (talk | contribs) (Mentioned semaphore as the author, and moved the Java requirement up.)
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TinyUmbrella is a combination of two earlier tools, all of which were written by semaphore. It requires Java to be installed (Windows users need the 32-bit version, regardless of OS architecture).

  • Umbrella -- used to save the SHSH certificate file of your iDevice to make it possible to later downgrade the firmware. It even works with non-jailbroken devices.
  • TinyTSS -- used to start the replay attack to downgrade the firmware. Only needed if saurik's server cannot provide the necessary SHSHs and you have the SHSH certificates saved locally.

Blog with details and download