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Hello! I replaced my screen on my Asus T100TA and it is working fine and everything (touchscreen works fine), but there seems to be some sort of large area on the screen that looks kind of like a watermark. When you use a suction cup it temporarily disappears to that tiny dot on the second picture (it also is lighter behind it), but after pressure is applied on the touch screen or the computer is closed it comes back. I was wondering if anyone knew about this issue and knows how to fix it. Thanks!

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Sounds like there is some sort of air bubble or extra space left over from the screen replacement. I would recommend taking it off again (if you did it yourself, otherwise take it to a repair shop) and making sure everything is perfectly smoothed out as you put it back on. Otherwise it may just be a small warping of the touch screen itself, in which case it should still be in warranty since you just replaced it and you can get a different one. Hope this helps and happy halloween!