My phone got submerged in water and i took the logic board out and all the water indicators are red. There are no signs of corrosion. Has been cleaned with 91% isopropyl alcohol. But it seems some of the logic board is encased. I would think there is corrosion in there. How would I get to that. I’m just trying to get photos of my child from there.

Ps. Phone does not power on. Have tried other logic boards and phone powers on.