My laptop does not start but the button is green?
Maybe new ones are needed (windows)
Try doing a restart first
Remove the power cord, press the power button for 30 seconds and then turn it on
Open the device and clean it dry inside. Then assemble it and see if it works again.
How does a restart work
If nothing happens, it doesn't turn on or off
If you shine a light on the screen and see something, the inverter board is defective. You can exchange that if you have a little idea.
If nothing comes up, it's probably due to the RAM or the CPU. Sometimes it helps to get the RAM out and put it back in again. Or do the same with the CPU, but remember to renew the thermal paste.
Turn the laptop off and then on again