My Galaxy Note 10.1 has frozen on the logo on boot up. I have tried using Odin to refresh the firmware but this has had no effect, it still hangs on the boot screen. I tried to factory reset with the Power and Volume + buttons, but the logo simply disappears and reappears a moment later. the only way I can turn off the tablet is when it is connected to power with the USB. The battery appears to be fully charged.