Unlocked the laptop and checked the screen for any dirt or debris.
Unlocked the laptop and checked the screen for any dirt or debris.
I returned to the laptop as before. After it powered on with a black screen, I cleaned it and removed the CMOS battery, RAM, and SSD, then reinstalled everything carefully, making sure all connections were secure three times. When I pressed the power button, the screen didn’t light up for a second, and the fan ran briefly before there was no sound, no USB devices connected, and the power button stayed on. Could this be a RAM issue or a dead CMOS battery?
It’s wise to verify that every part is correctly positioned and that no debris got into the connectors during removal. The CMOS battery might be dead or not, but you can easily swap it for a fresh one from a dollar store. It could also indicate a RAM issue, though other problems are possible. Nice effort reviewing all the cables! Do you know how to turn on an external display? On some laptops it’s activated with Fn+F5, possibly a different key on your specific model. Good luck!