Originally Posted by
drvannostren
This might sound asinine if you have already done it, but in the event that you haven't...plug it in to THE WALL via the apple cable/brick overnight, at least 8 hours.
This works quite often if it's a result of being dead for a while. So while you may have had another problem that's sorted itself out, it won't "revive" until this is done. I've had more than a few neglected electronics that just needed some love from the wall.
Also...if you got it wet, I've read putting any phone, into a bowl/bucket whatever, surround it with dry rice, that the rice absorbs the moisture. I've never needed it, but I've heard of lots of people getting success from this.
If its been more than a day or two after getting it wet, and it has been plugged in the "rice trick" won't do anything. (If it would even do anything at all, silica gel packets like are found in shoes, handbags, etc work 10x better.) Working in the world of wireless the worst thing to do is to plug a phone in after it got wet (it will cause some components to short out), and the next is instant rice.
If you can pull the battery out right away, and if you're daring enough opening it up and using a rinse of first distilled water to remove any minerals left behind, and then a rinse in denatured alcohol to remove the water is the best shot. If it is trashed-trashed, a denatured soak is the best bet. Though, if there are any signs of a short, nothing will fix it.
You can buy the silica gel at Wal-Mart in the crafts section, grab a ziploc and the phone, and let it sit for two to three *days*
http://www.walmart.com/ip/Silica-Gel...b-Tub/24547309