When phone had been off,I can start it up, swipe up and get number screen to unlock phone and use as normal. If I pause or screen times out, when I swipe to open I can not get number screen to appear or it comes as a overlay to notifications, and add numbers in my unlock code as I press numbers it will add numbers on own,the screen will bounce between high zoom and normal. It resists being powered Off. Is this repairable?