My tablet froze and I reset by holding in power button like many times before only this time my tablet won't come back on. The Polaroid name and loading symbol come on screen but it goes no further than that. Is there any way to do a factory reset on this tablet. I have tried to find a user manual online but can't even find my model of tablet. I have the 8" Polaroid Internet Tablet A8, it runs Jelly Bean 4.2.