Acer Iconia Tab Tablet a700 stuck on boot screen

My Acer Iconia Tab Tablet a700 got stuck at the booting screen few seconds after restarts again and may continue so until battery run out. I try this https://www.youtube.com/watch?v=HErn0-Gc... but pressing both button nothing happen I don't know where to get the software to fix it or where to send it to fix it I live in Houston TX