Have you ever completely submerged your cell phone in a toilet, pool, or puddle of water? It's a terrible mishap, but try this tip before replacing the phone.
Immediately take the cell phone completely apart (do not try to see if it works!) Remove the battery and place it in a bag of white rice for 1-1/2 days, then turn it over and leave it in a new bag of rice for another 1-1/2 days. I was shocked, but it really worked on my husband's phone. He used it for another 6 months or so!
Do not use a hair dryer, microwave or just leave it out to air dry. Read more from the Popular Mechanics site, if you're interested.