I have a Kata T2 and it freezes randomly. I have hard reset it and cleared everything and it still does it. I don't need to be running anything it just happens. I can't shut it off when it freezes, I have to use the reset button. The screen and all works fine when I use it (until it freezes). It freezes around every 20 min more or less. I have also checked for firmware but nothing shows up. Please help.