Hi, I have a Chinese tablet I know sorry lol.. anyway was working brilliant its got Android 4.4.4 or a version there of i guess i dunno.. Anyway all was fine until screen cracked, and lost touch on one side of the tablet... So researched and found it to be an Allwinner A33 tablet model 906.. so sourced a new screen/digitizer and fitted it.. However as good as it is and all working and like new.. The touch doesn't seem to be in right place.. If i click Bottom right corner the cross hair shows Im clicking there.. However as i move my finger up The cross hairs reach the top of the screen before my finger does, The same with going left.. It seems to get worse the firthurthur i go.. in the middle of the tablet if i click dead center, cross hairs appear about 1cm to the left and up.. So obviously need to re calibrate the screen somehow.. I have tried all recovery modes boots and resets as i was told it should calibrate it it self.. I've tried apps that say they do it as well, but alas nothing works.. PLEASE HELP!