I would like to get some help with my smartphone Sony Xperia S. I have had this phone for over a year. Unfortunately it has had some contact with water lately due to heavy showers. I had my phone in my pocket and anyway water came inside. I dried it up, because I knew there is water. It worked normally. It dried up for like three days and then I turned it on. It worked normally as it used to. Unfortunately at the afternoon, the display became black. From time to time it works normally, but sometimes it's like.... the display is black and you can't do anything about it. If I charge it, the screen is sometimes normal. I don't really know what I can do about it. Might it be something with a battery? I had bought this phone for a lot of money. I just don't want to throw it away. Is there any option to use guarantee?
Thank you by the way. 