I am sure most of you know this, or you read all the fine print when becoming a beta tester lol. My iPhone 7 has a dead pixel at the bottom of the screen. Only noticeable on a white background. I figured what the hell, it's pretty new and I know they will just put a new screen on it no questions asked. Went yesterday, as expected, an inspection of the flaw resulted in a no problem, we will put on a new screen. He said, "that's the good news". The bad news is that we are not allowed to work on any device running iOS11, you need to go home and plug it into itunes and downgrade. I nicely pleaded with him that it's just a hardware swap and it shouldn't be an issue. He felt for me, but went on to state that they calibrate new screen installs and they can't do this with iOS 11. It's nice to know there is a difference between Apple store screen fixes and mall kioks. Anyhow, I decided to live with my barely noticeable dead pixel. Downgrading seems to be a pain in the ass. It is not a restore, of course contacts and photos in the cloud will restore, but setting, apps etc. will all need to be configured, downloaded, etc. You also CAN NOT restore the iOS 11 back up over the downgrade (I thought of that).