Sliver 6.1 -

iPhone 4s, 5, 5c, 5s, 6, 6 Plus, 6s, 6s Plus, 7, 7 Plus, 8, 8 Plus, and X.

To make sure you get the right advice for your device, could you tell me: What are you trying to bypass? What iOS version is it currently running? Which macOS version is your computer running? Once I know these, I can give you the exact steps. sliver 6.1