I have had my phone for almost a month now and i did notice an issue i can't seem to replicate on a friend's 1020 as well. The side of my phone where you have the buttons seems like it point between the volume rocker and power button are not perfectly snapped in to the phone chassis like other parts of the body and a small pressure on the point between this buttons you feel the body snapping in and out. If anyone could replicate apply pressure between that point to know if you feel any difference from other parts