HP Pavilion 15 Black screen with a blinking line on the top-left corner at bootup

[The1Pops]

Hello,

I have had an HP Pavilion 15 notebook since 2014.  Recently, the notebook has displayed a black screen with a blinking line in the top-left corner whenever I turn it on.  Initially, I thought it would be due to the battery reaching the end of its life, so I ordered a replacement battery. 

The replacement battery came in today, and I still run into the black screen with the line in the corner upon boot-up.  I have ran and passed a memory test and a hard drive test, but I cannot access the system recovery at F11.  I also tried the method where you hold down the power button for 60 seconds without the battery, but to no avail. 

Can anyone please help me on how to get the notebook working again?

[ub6424]

Hello @The1Pops 

Sorry to hear that you are having problems ... I would like to help you.

Touch an iron water pipe in your home with your hand to discharge yourself electrostatically by grounding.

(1) Remove/disconnect ...

- RAM

- drive

- CMOS CR2032 battery ( if present )

- battery

- charger

(2) Press and hold <power> button for 30 seconds

(3) Insert/Connect

- RAM

- drive

- CMOS CR2032 battery ( if present )

- battery

- charger

(4) Power on and enter <BIOS> to load setup defaults, save and exit

(5) Start operating system

(6) Please report your results ( pictures, messages ... )

[The1Pops]

Hello @Ub6424,

Thank you for reaching out.  I tried out your method, but I kept running into the same black screen with the corner line after I hit Save and Exit from the BIOS.

[ub6424]

(1) Please send pictures of < all > BIOS settings

( if serial number, device id, UUID, System Board CT Number is displayed, please blur )

(2) Please send picture of your mysterious startup screen

[The1Pops]

How do I send you pictures?

[ub6424]

Hello @The1Pops 

Take pictures with your smartphone or camera, you can upload pictures/photos here:

[The1Pops]

Hello @Ub6424,

This is the first screen I see in the BIOS and the "mysterious" startup screen.

  

[ub6424]

Please send pictures of [Security] and [System Configuration] in addition to [Main]

[ub6424]

Hello @The1Pops 

Now we're going to dive a little deeper into the topic.

(1) Test your hardware Using the HP PC Hardware Diagnostics (UEFI)

https://support.hp.com/us-en/document/c04499777

See how it works:

https://www.youtube.com/watch?v=14GKIpGPNRM

(2) Please report your results

[The1Pops]

Hello @Ub6424,

Please see pictures of my Security and System Configuration screens from the BIOS.