tablet doesn't wanna start

Hey there, I have recieved this tablet a few days a ago, ordered original samsung charger and tried charging it up and turning it on, however the tablet wont turn on (not even a battery icon doesn’t show up). I tried taking it apart, disconnecting the battery for a while connector, holding the...

The problem here is that i cant access anything at all, and its stuck on loading screen. and since i have a samsung Galaxy SM T560 , i dont know how to open the back and pull the battery out. Is it bricked? or is there Any way to do a hard reset while on loading screen?

As said, i had my tablet on and was reading, when it turned off do to empty battery (i had already noticed it was getting empty), i plugged it into the charger, but it wouldn't start up, it would only flash the beginning screen again and again. The tablet is a two year old modecom, can anyone...