There is a small strip of glass near the bottom of my screen on my HTC One M9. I recently got the phone and I noticed it a few days ago. It's kinda been bothering me ever since as I can't seem t stop noticing it every time I use my phone. I was just wondering if anybody knew what is was. The strip of glass that is less fingerprint prone is as wide as the whole screen and is about 1cm long. It is just above the on-screen navigation buttons.