It was the motherboard so we shopped for a new laptop.
You left out the make, model and age. I could toss out that I'd try a new CMOS battery but I don't see the make, model and age to check if it's time.
One day I went to power on my laptop and everything worked as usual (the LED lights indicating that the battery was full and power was on were on, and I could even hear the fan running), but the only thing is that is was taking longer than usual to actually turn on. The screen remained black and I sat by waiting for it to turn on for probably 30 minutes or so, but still nothing.
I’ve tried that thing where you remove the battery and the charger and hold the power button down, but it didn’t work. I have tried multiple times too, and I have yet to get any results from it.
Anyone know what the cause of the problem is, and if so, how do you fix it? I really need help...