Won't turn on after Water Damage

Hello.

I recently received a MacBook Pro (13-inch, 2017, 2 TBT3) with water damage.

I treated all the components for water damage by cleaning with isopropyl alcohol. I also put the board in a heating oven for 1 hour on 175 degrees Celsius.

When i opened the MacBook the components didn’t look to bad to begin with. After thoroughly cleaning them they look like new.

The battery seems to be dead as i can only measure 2-3V on it. If i plug in the charger i measure about 12V on it but even after charging it overnight the battery is still at 2-3V

After all this the MacBook doesn’t show any signs of life. So i am hoping anyone out there has any more tips or tricks i can try.

Is it depended on the battery being fully functional or does the main board definitely have some issues?