Chosen Solution
How do I fix my MacBook. There was a liquid inside?
When liquid is spilled inside a MacBook you will often find yourself replacing several parts including the Logic Board. If it was potable water (regular old drinking water) you can often get away replacing fewer parts (usually logic board.) I would forget about repairing it if you spilled just about anything else including soda, coffee or another “sugary” liquid which usually corrode all sorts of important things inside the laptop.
Most likely there is corrosion build up and causing the macbook not to turn on. What liquid did you spill on it?
If you can take the computer apart and find the sight of the corrosion, the solution could be as simple as removing the corrosion with a toothbrush, and some isopropyl alcohol. The 8-Bit Guy has a good tutorial on how to fix this problem. https://www.youtube.com/watch?v=Ef2tvcqy…