I'm sorry to hear your phone is not responding! I'd love to get it back up and running. Can you press and hold both the front button and the top button? You may need to hold it for a few minutes, but an Apple will appear when the device resets. Keep us posted!
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so sorry to hear about your problem, My advise is to take it back and ask them to fix or exchange your phone for you. I beleave for as much as they cost you should never be having any problem like it is having .Just my option. hope this helps you