"My phone overheated and won't turn on, what do I do?"に関する回答Remove the battery and check to see if it is deformed this can cause it to fail. if it is the battery replace and then evaluate from there.
"What to do when your HTC EVO 4G is exposed to water?"に関する回答Try putting it in a bag of rice. It will help absorb the water. But to prevent corrosion and short circuiting of the device disassembly and proper cleaning. I like to disassemble the device and put in a bag of rice for a couple hours just to make sure I got all the water out.