I dropped my Nexus 4 and the screen is now slightly shifted by a couple mm (misaligned if anything, seeing slightly purpleish on the left side) and what's more sucky the color and brightness of the phone seems to have faded as everything is slightly matte black now. The black looks more like a grey! How can I fix this? Is there anything I can do to wipe the display or is it a hardware problem? Thanks in advance!!!