My Iphone gets submerged in water?

Hey guys…
Well it happened like this. I went down from my hotel in Bali to the beach with my iphone 4 in my pocket. Then i swam into the water with my phone in my pocket and played with my sister going out and in the water (that sounded weird) but no matter, it lasted for like 15 minutes.
After that i finally found out that my phone had been in the sea water for that whole time!
I panicked and tried to turn it off…(found out it was a bad move) and then I ran to the hotel's kitchen asking for rice (got that idea from my sister) i put in a plastic bag since i had to return back to my home country right after the beach adventure…
when i got back home the next day, i placed my phone in a electronic drybox and left it there for 5 days until today. Today i recently tried to turn it on by charging it… It didn't turn on after 30 seconds,
i decided to put it in a bowl of rice+place it in the electronic drybox… Like just now…
I'm worried sick…
Please help…
will i ever see my phone come back to life again?
Please Help ANY OF YOU! Its five days since the submerged iphone incident…

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