How to fix “Activation Error” on iOS 9 on A9 devices (iPhone 6s, 6s Plus, SE 1st gen)

This tutorial will go over how to fix the infamous “Activation Error” on iPhones from late 2015 to early 2016 with the A9 chip. I have only tested this on a iPhone 6s with iOS 9.3.3/4/5 and hold no responsibility if your device gets bricked. Proceed with caution. If this does not work for you, use this video and fast forward to where I talk about the “Activation Error” issue:    • I (successfully) downgraded a iPhone 6s to...   Please consider supporting the channel by subscribing so I can grow my popularity and make well edited videos!