Jul 2010 27
Downgrade iPhone with SHSHs Stored on Cydia [Jailbreak Superguide]
Posted In Apple,How-To,News,iPhone 3G S,iTunes
If you accidentally updated your jailbroken iPhone 3GS, you cannot simply downgrade it by restoring to an older version of the firmware (even in DFU mode) because of an added layer of security by Apple.
However, if you have a previously jailbroken iPhone 3GS, there’s a possibility that Cydia saved some files called SHSHs to help [...]

