Hello, I bought my nephew a chinese tablet for christmas, it was working fine till this week now it's just stuck on Android boot screen. We have tried the reset button and holding the power button and volume button but still it dosen't work. The seller won't respond. here a link to it http://www.**********/product/am983-9-7-inch-ips-1024-768px-android-4-2/200398386.html#myaccount_orderdetail-1-null As no one of us isn't a real tech person we dont know what to do. Could anyone please suggest anything?