I have an MSI gf 63 laptop. I have had it for over 2 years and the laptop overheated often. I have opened up the laptop several times and cleaned out the fan as it had dust and debris in it. This time, I opened the laptop same as before and removed the fan cover and heatsink. I removed the original thermal paste that was dried out and replaced it with some new non conductive thermal paste. I used alcohol and a microfiber cloth to remove the thermal paste. I then cleaned the fan and plugged the fan connecter back in. Then, I put the heatsink back on and closed the laptop back up. I screwed it back in but when I pressed the power button it didn’t start even when I plugged it in, I thought it might have been a screen issue but the backlight on the keyboard didn’t light up either. I opened it up to check if the battery connector was plugged in and it was. I am really helpless and the laptop is really expensive so I don’t want to replace any expensive parts. Can someone please help ASAP? I am really nervous and really worried, if someone could help that would give me a lot of relief.