i went swimming with my phone (smartphone damage)

Don't turn it of first of all. You can let it sit out for a few days or put it in a bag of rice for one day. (rice will help absorb the water) If it doesn't work after that, it is done for. You will have to get a new phone. If you got it through work, they might be able to replace it for you but other than that, you would have to get a new phone.

Nope electronics and water are the bigest enemy's. If you're phone is broken due to this you're going to need to get a new one wether your within your warranty or not. Water damage is never a valid reason to get it repaired under warranty.

As @ClaassenTech said, a bag of rice is your best bet. I'd leave it in there for about a week and check on it. I have heard of people making an iPod Touch work again after accidentally dropping it in water or spilling something on it.

Electronics can handle being submerged but not with any power connected or stored in the capacitors. I hate to say it but it's not likely that your phone will be savable.

If the phone was on there is almost no chance as when it got wet it could have short-circuited and died. Get it as dry as you can. I put a memory stick in the washing machine (Not exactly a phone but u know)and left it on top of the clock in the cooker (Very small amount of heat given off) and it works, Just got to find it now :). Remove the battery and leave in rice like the others have said.

Just to add what others have said, I would disagree with Josephltech and say check it after a week! Perhaps change the rice after a week, but DO NOT TURN IT ON!

I would say upto 1 month before turning it on, changing the rice once a week.

A wave recently knocked me down while I was trying to take a pic of a pod of spotted dolphins. If it ever happens again in the future, yank the battery as fast as you can. Then, if you don't have them already, buy a set of micro-screwdrivers (dollar general, $1). Look for the little round rubber tabs/stoppers on the back of the phone and remove them w/the tiny flat-head screwdriver. Remove all the screws you can see (be sure to check under and around where the battery sits in the battery compartment), and try to separate the front from the back of the phone. Remove the screws you missed and try again. Do the rice thing for 5-7 days. Circulating air works really well, like pointing a fan straight up and resting the phone, circuitry facing the fan for another 24 hrs. Put it back together, pop battery in and prey!

I fish a lot and have lost 3 (counting the 1 above) and saved 1 with this method. The key is disassembling the phone so the moisture can evaporate more easily. If you don't open the phone up, it will take months for the moisture to evaporate. The phone I saved wasn't a smartphone. The chances of it working again are very low, but worth a shot if buying a new one isn't possible or would put you in a bind.

Good Luck!

Note: disassembling your phone will most likely void any warranty, make sure water damage is NOT covered before you disassemble!