After the recent software update on my Xperia S, my phone has randomly started touching on the screen. I have to lock and unlock my phone several times for this to work. But if I lock it again, I'm stuck with the same issue. Even when the unlock works, it still touches randomly, and the right 1/3 of my screen stopped functioning due to this. I know it's a software issue, but I don't know what to do. I tried downloading the repair software twice, but nothing has helped.
