Cydia Impactor

[Tyler-Durden]

I used this cool app, last night, to revert my jailbroken 6+ to stock iOS without having to update to the latest version which is unjailbreakable. I was having some quirky stability issues, so wanted to clean out my phone and start over with a fresh jailbreak. Impactor restored my phone to 8.3 -- not 8.4.1; even had to reactivate it. I then used the latest Taig to jailbreak and install my favorite Cydia tweaks. Everything went smoothly and my phone is working great.

https://cydia.saurik.com/info/com.saurik.impactor/

Of course, all this pleasantness will be irrelevant when my 6s+ arrives, next week.