Hello I just got a TCC8900 android tablet, when I got it it was second hand so I decided to do a factory reset. all of a sudden after it came back on, the calibration was off. well the white calibration screen is where I am at, and the bottom right corner doesn't work. and sometimes I have to play with the screen to get it to work. I know that the touch works on that side because if I bypass the calibration it works (except it activates the exact opposite side, lol). I am soo frustrated I don't know what else to do. Plus the Wifi option only appears sometimes, now I cna't get it to come backk... Please help me! Thanks!