take the battery out of the phone .... store it keyboard down for awhile in a dry place ... turn it over and store it for another period of time... hopefully the membranes that activate the keys when you push them were not damaged
TURN PHONE OFF REMOVE ALL COVERS THAT YOU CAN AND USE HAIR DRYER ON LOW HEAT TO REMOVE WATER OR IF YOU HAVE A REPAIR PLAN WITH SERVICE PROVIDER USE IT TO GET NEW PHONE AND EXCHANGE IT UNTIL ALL PROBLEMS ARE FIXED
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