Nano 7th generation wont work at all

I ordered online an ipod nano 7th generation, I only had it for a few days. I woke up this morning and my nano just won't work. I tried everything to turn it off hod the on/off/sleep bottom but it just won't turn on. I also tried to reset it, but it is not recognized in my laptop, so I checked online and there were answers but none work at all. I really tried and did everything. I don't know if my nano had a guarantee because when I shopped online it was not an option. The worst part is that I am leaving in a few days and I want my nano to work because I did nothing. Please help me!

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