In my first video I show how I fixed a SAMSUNG NP-R60 Laptop that would not boot up properly.
It was an interesting problem that turned out to be a badly soldered GPU chip.
I fixed it by removing as much from the board as I could, then wrapping the board in foil, except for the area around the GPU and baking the board in the oven at 200°C for 10 minutes, then allowing it to cool gradually. Upon reinstalling everything and connecting it back up, I was pleased to find it worked perfectly and booted every time.
Hover over the menu item for more repairs.