I've had mine for almost two months now. Naked except for the film on the back that the phone shipped with. Had a case on it for maybe two days before I took it off because I hated how it made the phone look and feel. If my Nexus isn't in my pocket, it's on a flat surface (usually on paper or something) away from edges, or in my car dock. Not a scratch on it, except for some very tiny hairline ones on the top "chrome" bezel.
Disappointing that yours is cracked, but it didn't magically happen because it was poorly made. Some undue stress was placed on your phone, likely when it was in your pocket. Hopefully your back protector will help keep the crack from growing.
I've had my S2 for almost 2 years and didn't use a case or screen protector, and it's in pristine condition. I've had this less than a week and haven't put any undue stress on it, haven't dropped it, and always lay it down with care. I did this because of other stories out there of how even the smallest of drops can shatter your back glass panel. I carried my S2 in my pocket and never had issues, so if having it in your pocket causes stresses on the back panel just after a week, then I beg to differ.
If I had tossed it on the table or dropped it on my carpeted floor, I wouldn't have even posted this because I would have known the cause.
I was just reading another blog today. I think it's called Android Power, but anyway... he was giving his review after using the device for 2 months and his only real complaint was the hairline cracks on the back of his Nexus 4.
To bad they couldn't have used Gorilla Glass on the back, because I love the look of it. But it is what it is.
What's funny is I started searching on how to stop a run in glass when I stumbled across all these other stories of the hairline cracks on just the back of the Nexus 4.
Makes me wonder if sitting down with this in your front pocket is just to much pressure on the back glass panel, if that causes stress fractures? Because that's the only thing I can think I've done....
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