i have chargec my device for a couple of hours and my tablet was turned off when i managed to turn it on it says regurarly SAMSUNG GALAXY TAB 10.1 and then stucks on SAMSUNG and i cant go in tab menu also it turns off by itself and does the same thing SAMSUNG GALAXY TAB 10.1 AND then freezes on SAMSUNG and does nothing i have left it for a couplw of hours like that and nothing happened please help me!