Teclast A11 Quad-Core edition is a 10.1 inch big size IPS display Google Android 4.2 tablet computer with 2gb big RAM. It is a well designed metallic cover ultra-thin tablet pc. This firmware is based on official Android 4.2.2-v2.05 version. Pictures are for reference only Note: 1).To download the files from vmall website, please click the first blue button; How to upgrade: 1).Download the upgrade tool - Phoenix Suit v1.0.6,and install in your windows computer, then open.……