Dear All, I have a iRobot 10" 8GB tablet want to reset it, what can I do because I missed the manual. I checked some web site press "Power" + "Menu" + "The Circle Button" at the bottom of the screen can reset (erase all data) the tablet, but I failed. Anybody can teach me the trick ? If possible, can you guys send me the manual. THANKS IN ADVANCE !!!!!