before iOS 11.3 my iPhone X worked flawlessly. No issues at all. After upgrading to 11.3 I have the following issues. Unable to answer calls and screen is unresponsive. Today it played music when I tried to answer. I can only reply to text w/o unlocking sometimes as the keyboard does not appear. Unlocked when not in the text app I can’t see the bottom of messages as the keyboard blocks the message and I cannot scroll up to see the text. The only way I can see it is in the text app. It also randomly locks up. These are just the issues that come to mind right now. Before 11.3 my phone worked flawlessly, now its fast becoming unusable.