Hi, my Pixel 4’s left side back cover start to come off. I think the glue is starting to get loose. It’s not prominent but there’s a tiny gap between the left side of the glass back cover and the frame. Sadly, my country is out of google warranty coverage and my local phone repairer does not handle pixel phone. Should I be alarmed by this? Or can I use phone skin to close the gap? If using hair dryer could help re-glue the adhesive, please tell me how. Thanks.