it may be too late since you may have booted it up with water still in it, but try this...
Take a ziplock baggie and fill it 2/3rds full of white rice. put the phone in the baggie for a day or two. The rice will attract the moisture out of the phone, and it may work.
Fact most electronics will work if they get wet, as long as you let them dry out for a few days afterwards.
Sometimes not if it is sitcky coke or soda, or salt water, but laptops have been sried out of salt water and worked...i would not trust them afterwards, transfer data fast etc.
Ironically my girlfriend spilled champagne on the laptop I am typing on at this moment... Took it to a tech friend who let it dry, opened it up, cleaned it,it has been find for almost 3 years.