Front Panel was broken.
The Replacement went pretty well. But the supplied both side adhesive tape was just for the upper and the lower missing the sidelines, which are very thin. When I detach the old panel I did not care much to save the side lines. After reassembly, I found touch screen sensor does not work properly along the side lines. I guess that the contact between the glass panel and the lcd panel is not perfect and that's why the touch screen does not properly along the side lines.
Be careful too save the adhesives in the side lines to reuse them, or you have to cut a both side adhesive tape vey slim to apply. I have not tried though.