OK, I just bought a new mpman MID72C tablet, I know it is a chinese cheap product but really good, whatever I tried to boot it, and I made it but when I restart it just shows the mpman logo for hours. I tried to restart it with te restart button but nothing happens. I tried to restart it whit a product firmware from a similar tablet but nothing . I don`t know what else to do, I`m a android newbie PLEASE HELP!!!!