guys.. i guess u have to delay yr purchase



Reported Problems

Screen separation and creaking

Android Authority discovered that some Nexus 7 screens don't appear to be attached very securely, causing the case to make a creaking sound. The geeks at Android Authroity and XDA Forums have a DIY fix, but we'd advise ordinary consumers to just return their tablets.

Backlight bleeding

Pocketnow found a Twitter report with a photo of the Nexus 7's backlight bleeding horribly, which makes the lighting on the screen look very uneven. This might be related to the screen assembly issue mentioned above. I've seen backlight bleeding problems on plenty of "cheapo" sub-$100 tablets; it's one of the things that doesn't get checked for when you're cutting corners


Charging problems

Chris Ziegler at The Verge, one of the foremost mobile experts in the U.S., had this problem: his Nexus 7 wouldn't charge off of various wall chargers. It turns out it shipped with a broken MicroUSB port. Search through forums and you'll find other people with the same problem.

Same problem, same issue, same theme. The Nexus 7 doesn't have a bug - most devices ship with their MicroUSB ports working just fine. But whoever's sourcing parts out in Taiwan may have gone with the lowest bidder, or the production line just isn't checking all the USB ports that go out.



Touch detection issues

This is the only problem on the list that may be solvable in software. Our sister site Geek.com has a video showing trouble with touch detection in some Tegra games, which the author surmises may have to do with heat.
Dead pixels
A poster on XDA Developers shows photos of a Nexus 7 screen with dead pixels, a traditional QA problem that has plagued every LCD-screen gadget from time to time.


Dead microphone

This complaint is going around with the geeks at XDA Forums. It looks like some tablets have gone out with bad microphones, and Google support is asking those users to send their tablets back.


The Scale of the Problem

The Nexus 7 is under a lot of scrutiny. It's a high-profile product. This is all good. But it's hard, without getting hundreds of tablets in one place, to tell how frequent these hardware issues are (and whether they're more frequent than hardware issues with other tablets).
We still recommend the Nexus 7 highly, because (unlike with the old iPhone Death Grip) none of these problems appear to be issues with the Nexus 7's design. Rather, they're manufacturing glitches affecting specific batches of devices. Still, though, don't be afraid to exchange your tablet for a fresh one if you see something wrong.



http://www.pcmag.com/article2/0,2817,2407422,00.asp