I too was having issues with this same error popping up, but wasn't aware of any mosture or water getting into the phone. I didn't take the phone a part but took a can of pressurized air and liberally sprayed it into the both the phone jack and the dock or charger connection openings. And, it suddenly worked. The keystroke sounds could be heard as well as other unmistakeable and sometimes annoying sounds associated with apps were now audible. Thanks for the tips as I tried the least invasive one first and it worked. -C-