You’ll also need to reactivate your device, and go back through the normal setup process.Saurik advises that you don’t touch your device while Impactor is running, and that it should be connected to the Internet and have plenty of battery life to spare.
Normally, if you wanted to perform a full system restore, you’d be forced to upgrade to the latest firmware, and thus lose your jailbreak.
With Cydia Impacter, you can restore your device to stock Cydia Impactor version 0.9.15 is currently in beta for i OS 8.3 and i OS 8.4 only.
Want to remove your jailbreak without updating i OS?
The just released Cydia Impactor can help you unjailbreak your i Phone with little effort.
In this video tutorial, I’ll show you how to revert back to stock i OS and remove your jailbreak without updating your i OS version.