Hi helpls!!
Try to
hard reset your laptop. You can do so by turning off your computer. Plug out the power cable. Take out the battery from your laptop. After you plug out the power cable and take out the battery, press and hold power button on laptop (
yup, without the battery and power plug) for around 20 seconds.
Then, put back your battery, and plug back the power cable. Try to turn on the laptop now. See whether it is working now