Redirecting to https://www.quora.com/Can-I-downgrade-my-iPhone-6-from-iOS-11-to-iOS-8-directly-I-know-I-technically-cant-go-back-to-iOS-8-after-they-unsigned-the-firmware-according-to-Apple-but-if-I-explicitly-want-to-use-iOS-8-now-can-I-do-that