I dropped my iPhone 4 in water and was only in water for a few seconds. I got it out and dried it off the best that i could, and checked if it still worked and it worked fine, so i didn't think anything was wrong with it. And a couple hours later the phone was on and was on a black screen and wouldn't change. My power button is broke so i couldn't hold power+home to turn it off. So when i got the chance i took the back off the phone and put it in a bag of rice for the night. The next day the phone was off and after i got the rice out of the phone i plugged it in hopping it would turn on and nothing happen. Can anyone tell me what might have happened and how to possibly fix it?