Thank you for sharing this guide!
Last night my nexus 5 drowned.
after drying it from outside i tried to turn it on - it hadn't had the ability to use the touch screen and after i turned it off and on again the screen was dead.
using this guide i open and surprisingly realized that all the inside parts were covered with water - including the sim , the CPU and the battery...
i tear it down completely dry all the parts with a dry towel and left it in rice over the night.
after assembly it in the morning and going over with a cleaning brush (the rice seems to have some white dust) . i said some prayers ,held my fingers and turn it on. it woke up perfectly and there seems to be no problems so far - the screen, the Bluetooth , wifi, GPS, Sim and all the rest are working fine. thanks a lot!