Original post by: Stephen Elliott ,
Please avoid putting your phone in rice. It does absolutely nothing to help. Why people think it does is over a few days water dries out by itself and sometimes the phone comes back to life. The problem is when water sits on these connections it causes corrosion and rust. Corrosion damages these connections and if left untreated can cause irreversible damage to the device. Rice does not remove corrosion or rust. All you're doing by "using the rice trick" is letting water and corrosion sit on your motherboard for longer than it should. Best thing to do is immediately get it to a professional who can properly disassemble it and treat it. The quicker the better. Also if it's a later model iPhone you'll need to desolder the metal emi shields to check for any corrosion under those. Hope this helps.