I have a question on my cell phone?

It is so that my cell phone fell into the water and the screen is now completely black although the device view is still working you can still hear the notification tones and such and it reacts even if I accidentally press my question eats now I can Show the screen on my laptop or get my files back in some way I don't want to buy a replacement part because my contract expires after 2 months and I get a new device, among other things, my current device is a Samsung S9.

First put it in rice for a few hours and then try it out.

Did it, even opened it completely from the inside and dried it

Electronics shouldn't be put in rice because the starch isn't good for electronics. It is best to eg. These beads are usually in a small bag when you are, for example. What ordered from the internet.

I think you can't fix it again. If it was wet and there was electricity flowing, it is already too late. But if the touch still works then you could connect the phone to a computer. But then you still have to authorize your mobile phone to transfer photos and files, and that's difficult. You could watch a YouTube video where someone is doing this so you can see roughly where to type on the screen.

You could ask friends if they can lend you an old phone if you don't want to buy a new one.

It worked for me

Yes, it usually works, but there's always a certain risk that you could damage the electronics with rice.