BLACK SCREEN/ FLASHING CAPS LOCK BUTTON

[luppo]

BLACK SCREEN/ FLASHING CAPS LOCK BUTTON 

[Gaya1239]

Hi @luppo,

Welcome to the HP Support Community

I understand you are facing a display flickering issue with your HP Stream - 14-Cb171wm. Not to worry I will help you to get a resolution to resolve the issue.

Please try the following Troubleshoots steps. 

1.    Turn off the Unit.

2.    Disconnect the AC adapter.

3.    Remove any discs from the disc drive.

4.    Remove memory cards from the card reader slot.

5.    Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.

6.    Disconnect the AC adapter press and hold the power button for approximately 15 seconds.

7.    Reconnect the AC adapter, and then turn on the computer.

Step 2

Turn off the unit and please press and hold the Windows key + letter B key and the power button together for 30 seconds after 30 seconds, 1st release the power button but keep holding the Windows key and B key for ten more seconds and then release these two keys If done correctly, you will see the display flashing once. Please attempt it thrice as this step and Restart the unit

Step3

The unit has to be turned off, Press Win+ V while holding these two keys then Press the Power button, continue to hold all three keys for 30 seconds and then release the Power button first and then release these two keys Please attempt it thrice  and then you may get a Pop-Up CMOS Check and it will restart the unit 

Even if you don't get a Pop-up restart the unit manually after 3 attempts.

To assist better:

• Was there any recent update on the PC?
• Are all the drivers on HP Support Assistant up to date?
• If not please follow the document to update the drivers: HP PCs - How to Download, Install, and Use HP Support Assistant (Windows)

While you respond to that please try the below steps:

Update the BIOS & Video card drivers:

• Here's the link to download and install the above updates: Click here

If the issue persists, then please follow the steps mentioned in this document: HP PCs - Blinking or Flashing Screen After Upgrading to Windows 10

Hope this helps! Keep me posted. 

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