Android 4.0 Beta firmware v20111224 for HaiPad M7S tablet PC. This is beta version,only add WiFi function yet.3G and other functions would be fixed in the future update. How to install the firmware? 1).Using a TF card(a 2gb or less would be better) and extract the downloaded file and put all the files directly into the root of the TF card; 2).Turn off the tablet and put the TF card into the tablet.Press "M" button,at the same time,press "Power On" untill you see upgrade scr……