My Microsoft lumia 540 fell in sea water. Can it be fixed?

[WPCentral Question]

My Microsoft lumia 540 fell in the sea water. Now it is just switching on and giving an exclamatory mark. Can it be fixed? I dried it and also kept it in an air tight container with silica gel. Will I have to replace my phone? Is there any serious damage in it? I stumbled and fell into the water but I removed the phone as soon as I got up. I didn't see much water inside but still it isn't working properly.

 

[Mr Lebowski]

Salt water = RIP