Hi,
Sorry about your tribulations. Something to try is do a soft reset and if it doesn't work you'll have to do a factory reset. Just google for the methods.
I suppose you haven't made any changes such as rooting the device so I'd suggest you're better off returning it for a repair/exchange if it's still under warranty.
Aside from that, I don't have anymore insight about this particular issue and hope that someone will be able to help you.
Last edited by lulalullah; 10-15-2014 at 06:41 AM.
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