I spilt water on it this afternoon. Then I used it for about 10 minutes and then i restarted it with an update. It took ages so I left it to update but it might have run out of charge. Then I went to turn it on and It wouldn't work so I charged it for a while and then the light on the on button turned on but the screen didn't. It has been tiring itself on and off for about an hour. But the screen is still black. We tried drying it with a hair dryer but are scared if frying something. What should I do?