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Black Screen at start

Envy 15z ah100
Microsoft Windows 10 (64-bit)

Hello There,


I bought HP Envy 15z-ah100 last year. due to some reasons i got the computer today i.e. after 1 year. Anyway when i start the computer i get black screen. The computer works i.e. Caps lock light, key board light everything is ok but there is no display on screen. I got it checked with local venders. Even updated BIOS via Usb but nothing happened.


Whats the problem?

HP Support Agent
HP Support Agent
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Black Screen at start




Welcome to the HP Forums.

I would like to take a moment and thank you for using this forum, it is a great place to find answers.

 For you to have the best experience on the HP forum, you could also visit our HP Forums Guide for First Time Here? Learn How to Post and More.

As I understand the Envy 15z ah100 monitor has a Blackout,

Don't worry as I have a few steps to help you get through this concern,

Please attempt the below steps:

Perform a hard reset : Click here

Notebooks Attempt a BIOS recovery : Click here

Run the System Diagnostics tests : (While turning on the Notebook keep tapping F2 and follow the on screen instructions)

For more steps, click here

Let me know if those steps worked for you.If they did, that’s awesome! 

Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to say “Thanks” for helping!

I am an HP Employee

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