Hello. I have my Z1 for two months almost, and i noticed that the back cover support frame and the lcd support frame have cracks like missing some small part. I have 3 of them, two on the back and one on the front.I really dont understand why. I keep the phone in leather case and i put it down gently. Phone never dropped. I think i am the only one having this problem? My xperia u had dropped several times and its lcd frame had hardy a scartch
