MacBook won't turn on
Last night I put down the lid of my MacBook and went to bed. After I got home from work I opened it and noticed that it wasn't turned on anymore. When I pushed the power button nothing happened. The battery however still charges and the indicator lights on the side also turn on. However they only turn on when the wall charger is connected. When disconnected the MacBook seems to be completely dead.
I opened the MacBook and tried turning it on by jumping the power button, but this didn't help either. I also tried it with an unplugged battery. Moreover I tried an SMC reset and all the quick fixes I found using Google. Nothing worked. I didn't have the right screw drivers on hand to remove the logic board, but from the side you can see just by opening it, there doesn't seem to be a burnt or overheated spot.
Any idea what the problem might be? I just texted a friend whom I lend my screw drivers, so tomorrow I should be able to remove the logic board and examine it. I would be very happy to have some ideas on what to do next to save my MacBook . It worked just fine, and I wasn't planning on getting a new one any time soon...
Thank you for suggestions!