Nothing but problems after Lollipop (trouble-date)!! Touch Wiz seems to be the biggest problem can't unlock phone it just goes into a loop. It starts to unlock but wallpaper is black then goes back to lock screen. I'm using the fingerprint to unlock going to change that to see if it helps. I had no problems before Lollipop!!! Now I have to restart my phone 5 to 10 times a day depending on how much I'm trying to use it. What can I do to fix this?? Why isn't there a easy way to go back to previous version?? Especially when updates cause so many issues??