Unable to get rid of Tamper Status in 2nd Gen Motion Detector

Today, I installed 2nd Gen Motion Detector. Device status said "Tampered" probably because I had to take the back plate off to fix it to wall. Yet, it was detecting motion well. To remove "Tampered" from the status of the device, I followed the instructions given in ring-support. I put it back to factory settings by pressing the small hole in the back with a paper clip until the LED became a Red circle. Then I proceeded to set this up again in the App and put it back onto the back plate. Tampered status came back again. I tried this several times, even taking the batteries and putting them back again. However, whatever I do I am unable to get rid of the Tampered status of this motion detector from the App.