I accidently put my phone in the cup with soda in it because my friend put the cup in the cup holder where i usually put my phone, the screen hasn't work normally so I just leave it aside for about 2 months i take it out and use it again it works fine now the screen doesnt work when open the keyboard the top right corner (EXIT BUTTON) doesnt work? anyone has any idea know how to fix or where i can take it to fix it? THANK YOU FOR YOUR HELP