Why wont my phone turn on but gets hot while connected

Nas Theodore, skip the rice. It does not work and only gives you a false sense of security. It is absolutely useless. Do not try to sync, charge or to turn your phone on. Remember, if it heats up it most likely has a short circuit somewhere already. Doing any of the aforementioned things increases the likelihood and destroying more parts. As with any device that was submerged, I strongly recommend that you clean it. Totally disassemble your phone by using this guide . Remove the EMI shields as well. Clean it properly using this guide. It was written for a 3G but all the points still apply to your phone as well. Once it is properly cleaned '''replace the battery" reassemble and re-evaluate. With a new battery and properly cleaned, you will have a good starting point should any further trouble shooting be necessary. Hope this helps, good luck.