dThis is a new tool compiled Glauco to make life easier for users, this utility allows to fix the error after the restoration of firmware that is not the last available on iTunes = Downgrade. This utility uses the same code "TinyUmbrella Recovery Fix" the difference is that it is much more intuitive and includes files necessary for Windows and lib "zlib1.dll" and unifies FIX x 4.3 + 4.2.1 which facilitates the user to use .