@Kubajj
I reviewed your post and I understand that the power button is not working, and the laptop screen is not turning on when open the lid.
Don’t worry, I assure you I will try my best to get this sorted.
If the power button is not working correctly, it is a hardware issue and I recommend you contact support and check the available service options for your computer and they will also take care of the other issues on the computer.
Here is how you can get in touch with support.
1)Click on this link – www.hp.com/contacthp/
2)Select the product type.
3)Enter the serial number of your device or select let HP detect your product option.
4)Select the country from the drop-down.
5)You should see the HP phone support number or Chat option listed.
Let me know how it goes and you have a great day!
P.S: Welcome to the HP Support Community 😊
If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!
Cheers!
Stay Home – Stay Safe
The_Fossette
I am an HP Employee