Repair after Water Damage

Hey there, first time here!

I got a S6 edge for free, but with water damage.

So I thought I give it a shot at fixing it, as i fixed other phones before.

I did disassemble everything and cleaned the board with isopropanol 99%, put it back together after drying but it's still dead. I checked for corrosion, did not see any, but i will post pics if anyone could take a look.

I will check if the board got a short with a multimeter later, will update.

Does anyone got another idea what i could do? Baking the logic board maybe? If so, what would you recommend?

Thanks for any tips!