Take the cover off , take the pcb out , post picture of backplate on the door and the pcb , front and back
Ah cos I had a new door fittedRear back tamper plate broken .
You need a new plastic case to solve your tamper fault.
You need to be very careful when fitting the screw as this has damaged the back plate.
Door installer. Yeh it's too late now as I have t really had need to use the alarm as been working from home etc irs been over a yearWho took the sensor off ? this is why I asked for picture as I get this all the time with door fitters and it ends in a charge to the company fitting the door …