Hp Laptop Wont Power On. Stickers or markings on both the power supply and laptop should confirm this. Ensure your battery is holding power.
I tried the static discharge thing, to drain residual power, that I found on google/youtube but this isn't helping. My Hp laptop won't be able to shutdown. I also had a problem where the internal power supply just quit and after pulling the whole thing apart, couldn't find anything wrong, put it back together, and it's been working ever since.
Your power adapter is damaged/not working.
Ensure your battery is holding power.
I followed all the steps that list above. How to Fix Laptop not powering on, good battery, power adapter and power jack. If your power supply is working, you will Conclusion: If your HP Laptop won't turn on even after plugged in and full on battery and keeps you astonished.