Hi,
The issue is that you dried out your laptop before getting it cleaned or looked at. Drying it out sped up the process of corrosion on the components that are on your motherboard. When water and copper (motherboard) are mixed with electricity you get corrosion that does not stop and needs to be cleaned in order for the corrosion to stop eating away at the tiny solder points on your Motherboard. Take it to your nearest shop that does SMD soldering and see if they can clean it or fix it.