It sounds as though it might be fried..
Usually if electronics get wet they will shut off on their own.. its when someone tries to turn them on
before completly dry the problems start..
water gets between the circuts and acts as a short when still present..sometimes ya get lucky but most the repetitive trying gets the best of it and its killed for good ..
if you hadnt tried while still wet,then leftbin rice for a few days you may have been ok..
only real option is replace or factory repair