Being a novice, is not an issue.,
But, you need to know what you are buying, before you make the purchase.
If you wanted to save a few bucks, by buying a cloned chinese tab, well, lesson learned.
Tomorrow, I'll do a little searching, and see what I can dig up on your tab. You may want to pop the battery cover off, and give any applicable numbers. Like model number, manufacturer, serial number, and FCC number.