Bad news! Apple has stopped signing iOS 9.3.3, so it is no longer possible to follow the method that you were saying during yesterday to return from iOS 9.3.4.
This, unlike other times, it is a pretty important news, as all who are in a higher iOS version 9.3.3 have lost the ability to perform jailbreak their devices.
Also during yesterday he jumped the news that soon will jailbreak for 32 - bit devices, but yes, for it must have iOS 9.3.2 or iOS 9.3.3 maximum.
Thus, all that you have updated and you are interested in the jailbreak Now you just wait for iOS 10 because if there occurs any last - minute setback, the boys Pangu release a new jailbreak when Apple releases the final version of the operating system.
In short, if you find yourself in iOS 9.3.4 do not waste time trying to install an older version, because during the process an error check with Apple's servers will be displayed and you will have restored all.