The algorithm it’s based upon is quite complicated and requires a great deal of tech knowledge to fully understand. This is a great first hand solution to a jailbroken device that you wish to restore to a previous firmware version. One of the programs that can achieve this is TinyUmbrella. The application relies on Java Runtime Environment to function, so it's a good idea to check whether or not it's on your PC, even though it's already in the deployment package. In this type of situation, the solution is a third-party application that can revert the jailbreak, so that you can go back to your old settings.
Jailbreak operations don’t always pay off – discontent towards the performance or features of the new firmware is a plausible scenario, to which many users can testify. It manages to do so by backing up SHSH blobs for your phone, which makes it possible to downgrade to another firmware. TinyUmbrella is a smart utility that can revert your jailbroken iOS device to a previous update. This should be sorted and SHSH’s can be saved once again.
