Pavillion Screen wont come on.

[mrkeithmark]

Hello! 

Picked up a used HP Pavillion dv7-4173 us for my son to use for games and school work. 

Brought it home and the screen wont come on. Sounds like its running. Quietly. Have the right charger, battery holds charge. Power button light comes on,  f11 and f12 have two little orange lights that come on and stay on. 

However, screen stays black. doesnt flicker or anyting. Not sure if this matters but the top of the notebook, or back side of the screen when open, has a small round HP logo that lights up. It does come on and stays on.  Thinking about opening this thing up and seeing if the ribbon from board to screen came unplugged as I have had this issue with another laptop previously and the fix was simply plugging the ribbon in.

Anyone have any suggestions, tips or warnings regarding this matter I would love to hear from you. Thanks a million!

[praveen196]

@mrkeithmark Welcome to HP Community!

I understand that the Pavillion Screen wont come on.

I have a few steps that should help,  

First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat

AND/OR - Power on your PC, press Esc (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

AND/OR - Windows Logo key + Ctrl + Shift + B
(This key sequence actually restarts you graphics drive(W10 only).)

AND/OR - If you’re using multiple displays, try projecting video to a different monitor.
Press the Windows Logo key + P, select a display, and then press Enter.
 

https://support.hp.com/us-en/document/c02693833

Turn off the computer, and then connect the power cord.
Press and hold the Windows key and the B key at the same time, and then press and hold the power button for 2 to 3 seconds.
Release the Power button but continue pressing the Windows and B keys. You might hear a series of beeps.
The HP BIOS Update screen displays and the recovery begins automatically. Follow any on-screen prompts to continue the startup to complete the recovery.
HP BIOS Update recovery in progress

If the HP BIOS Update screen does not display, repeat the previous steps but press the Windows key and the V key. If the screen still does not display, your computer might not support the feature or there is a hard drive issue. Continue to the next step to install a BIOS recovery file from the HP website.
If the Power light turns off, the Power button was held too long. Repeat the previous steps, making sure to hold the button for only 2 to 3 seconds.

Keep us posted,

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