@bornface you treat it like any other phone that was exposed to water. Number one rule is to not try to turn it on, charge it or sync it. Remove the battery and do not try to charge or to use your phone. It is time to disassemble your phone. Once you have it open and disassembled, clean everything with high grade (90%+) isopropyl alcohol and a soft brush to clean every part of your phone. Follow this guide to see how to properly clean it. it was written for an iPhone but it is still pertinent to your phone as well. You must remove all EMI shields for a proper cleaning. While you clean, pay good attention to see if there are any broken, burned or missing components. Of course the best way would be to use an ultrasonic cleansing if you have access to it. Clean the connectors on the board as well as on the cables. Once you have it properly cleaned, replace the battery then re-evaluate.