I'd like a technical explanation of a fix I've seen for some HP laptops.
The user turns on their machine only to find a blank screen; the screen doesn't even turn on, but all of the keyboard LEDs and the fan are running. The computer becomes very hot. I fixed this on my laptop after finding an answer here: unplug the laptop, take out the battery, hold down the power button for about 30 seconds, plug the laptop in (but not the battery), and turn it on. Another friend of mine always has to leave the battery out for the laptop to start.
I'd like to know how this sort of thing is possible. Did something in the circuitry break or melt? Is there a logic error in the design?