The REAL solution to ridding the phone of water is to get a vertical container, and submerge the motherboard up to the vibrator motor in IPA. Take the motherboard out and make it so you can access the sides. Use an anti-static cleaning brush to clean the corrosion off the motherboard.

Don't go past the vibrator motor! The camera has filters and such inside of it, that if the IPA gets to it, it will eat them apart. Then you will have no camera.

These flex connections are places to watch out for corrosion. Make sure to get over them, but don't scrub harder on them.