My i1 randomly will not recognize when i touch it to stretch to unlock. It usually only happens when I turn on the phone and have new notifications, or sometimes if its locked and i get a new email or sms/mms. I've tried factory resets multiple times, uninstalling all my apps to see if it was one of them, and checked if it was up to date. It's none of that. It usually will work on the third try or so. Any ideas?