Any sugar, dissolved in almost any liquid, will carbonize when current flows through the liquid, causing shorts. Sugar-free drinks have other chemicals that will cause shorts or eat through copper. Carbonic acid, created when water is carbonized, is a weak etchant, but over enough time, it'll eat through enough copper that the board will fail. Even just carbonized de-ionized, absolutely pure water is slightly acidic.
Anything that gets into the phone should be washed out fast. (It's like crossing a busy highway blindfolded - it might work, but you also might get killed. Just drying the phone may let it last for years, and you trade it on another phone in 6 months, so you'll never know that it would have gone bad. Or it could go bad in 2 weeks. I only gamble on sure things. Will the sun rise tomorrow morning? Sure, I'll take that bet. [If it doesn't, I won't be around to have to pay anyway.] Will my wet phone keep working if I just put it into a bag of rice? I won't try that unless I was planning on tossing the phone anyway - and the only phones I'd toss are those not worth fixing. Even a Nokia 5110 with a decent battery can be used to call 911, so I donate any working phone to battered women's shelters. And if it's already not working, I can't tell if dipping it into maple syrup would have killed it.)
Anything that gets into the phone should be washed out fast. (It's like crossing a busy highway blindfolded - it might work, but you also might get killed. Just drying the phone may let it last for years, and you trade it on another phone in 6 months, so you'll never know that it would have gone bad. Or it could go bad in 2 weeks. I only gamble on sure things. Will the sun rise tomorrow morning? Sure, I'll take that bet. [If it doesn't, I won't be around to have to pay anyway.] Will my wet phone keep working if I just put it into a bag of rice? I won't try that unless I was planning on tossing the phone anyway - and the only phones I'd toss are those not worth fixing. Even a Nokia 5110 with a decent battery can be used to call 911, so I donate any working phone to battered women's shelters. And if it's already not working, I can't tell if dipping it into maple syrup would have killed it.)