Okay, here´s what happened: Yesterday I unplugged my tablet after charging. When I switched it on, the screen showed inverted/messed up colors. When I try to look at a picture or to watch a video, everything is inverted, too.
. I allready made a factory reset, wiped the cache, "updated" with the original stock ROM. I have digged into tons of threads in different forums. All that I have found was, that there is a switch you can find in accessability for changing from inverted to normal and back. But this one I do not find on my tablet. I ´m desperate now since I use my tablet for reading (which is still possible), for typing (which is no longer possible) and for videos (which is not longer possible). What to do now?
Datas: Acer iconia B1-A71, Android 4.1.2, Build Acer_AV051_B1-A71_1.25800_WW_GEN1, Image:Acer_AV051_B1-A71_RV05RC05_WW_GEN1, Image-P/N: FM.NLCAO.01Y, Kernel 3.4.0