So i dropped my Samsung S6 into the sink for like a fraction of a second and it was only half submerged. When I took it out, I dried it immediately but the back button and the sidebar button weren't working. The phone was just fine however so I took it to school with me. When i went home and tried to charge it, it said that it was overheating and then it shut down. I tried to charge it but it didnt seem to be working, I can see the screen lighting up but its stuck at 0% battery. About 5 hours have passed since it had contact with water, ive read as many online forums that i could fine so ive pretty much realised the mistakes that I have done so please don't lecture me on that. My only question is, if I use the rice trick now after 5 hours will it still work? I don't have rice at home so if I go and buy some it might be a total waste of money if its already too late. Please reply as soon as possible and thanks in advance. Also, where is the indicator for water damage on the samsung s6?