Yesterday I left my sony xperia z on my table and after an hour when I took it back the screen was not working as usually. It did not fall or anything it just happended suddenly. There is a non-physical stripe that divides the screen in two and the image just turns around the screen making it immpossible to unluck the device.
Do anyone of you know what the problem is or how to solve it?
Am I under guarantee in this case?
Thanks
