Hi I have recently moved into a house with this alarm installed. I have changed the user code etc. When decorating the living room I thought I might be able to remove the motion sensor to take the wallpaper off behind it. I removed the front cover which triggered the alarm but input my code straight away. The lcd screen is now showing the message in the first picture and when I enter my code and press reset I get the second screen. Any ideas what I need to do. Thanks in advance.