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- HP Community
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- HP Pavilion Black Screen and Blinking Caps Lock Key

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07-20-2021 09:27 PM
My HP Pavilion laptop has been having a black screen and blinking caps Lock key occur randomly over the past week. I can hear fans running and the computer appears to stay on during this. The key will blink 3 times quickly and 5 times slowly. I have taken the following measures and it still occurs.
-I have updated the BIOS system to the most recent version
-I have made sure windows is updated to the most recent version
-I ran a fast detection scan by Hp diagnostic software
-I updated the intel card
If someone can help me find a solution or identify the problem, I would greatly appreciate it.
07-21-2021 12:09 AM
Software failures will generate on-screen messages, usually about not finding an Operating System or not being able to boot. When the screen is blank, the PC is experiencing a major hardware failure.
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If the CapsLock key is blinking or there is beeping, read this HP information on the likely cause of the hardware failure based on the blinking or beeping patters.
For laptops, this HP thread describes the different blink and beep codes: https://support.hp.com/us-en/document/c01732674?jumpid=reg_r1002_usen_c-001_title_r0001
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To determine the cause with hardware failures, you have to be able run diagnostics. We have no way of accessing your PC from here, so we can not do that for you. You have to do it yourself.
You do this by pressing the Esc key repeatedly when rebooting and then, when the HP Startup Menu appears, selecting Diagnostics (usually F2) and letting it run.
If it is NOT possible to run diagnostics, or if that does not work, then there is NOTHING more you can do by yourself -- and there is NOTHING we can do because we have no way of accessing your PC from here to run diagnostics or repair hardware.
You will need to have the PC physically examined in a service facility by folks that can run their own diagnostics to determine what is wrong with it.
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If your PC is still under the original one-year HP warranty, or if you have purchased an extended warranty from HP and this is still valid, then having HP do this is an inexpensive option for you. In that case, you should contact HP Customer Support to see about having it repaired or replaced under warranty.
To contact HP Support see the following link to create yourself a case number:
Step 1. Here is the link: https://support.hp.com/us-en/contact-hp
Step 2. Enter Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"
Case number and contact information appears.
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If your PC is no longer under warranty, then it will cost you up front to have HP examine your PC. If you want to do that, you will have to contact an HP Repair or Service Center to see if they can examine the PC to determine the cause(s) of the problems, if it can be repaired, and an estimate of the repair costs.
Since you live in the U.S., here is a link to the HP Service Repair Centers:
https://www.service-center-locator.com/hp-hewlett-packard/hp-hewlett-packard-service-center.htm
If that link does not get you a useful page, then use the main HP link:
http://www8.hp.com/us/en/contact-hp/ww-contact-us.html
If you can't get assistance from HP, then you will have to seek out a local laptop service facility to have them examine it for you.
Good Luck
I am a volunteer and I do not work for, nor represent, HP
07-21-2021 03:04 AM
Black Screen Error or Black Screen of Death or BSOD referred to as Windows error. It usually appears either before or after the sign in screen. This Black screen error may occur any time due to various reasons such as:
- Graphic Driver Issue
- Corrupt System Files
- Faulty Display Connection
- Overheating
- Power Supply Issue
- Mistakes while Windows Installation
Below are the steps & methods to fix Black Screen Error in Windows:
When black screen error occurs, the Windows display no error code or message. Hence, it’s more troublesome and difficult to fix black screen errors in Windows.
You must apply the following fixes and steps in the described sequence to fix black screen error in Windows PC:
During Installation
A black screen during Windows installation is normal. Sometimes installation can take more than an hour to complete, depending upon the system hardware. However, if the black screen stays for 2 hours or more, there is a higher probability that the installation is stuck.
Check Display Connection
Check the cable connections—both power supply and HDMI/VGA/DisplayPortcable for firm connection. Tighten the loose connectors and check the power light on the display monitor. It usually turns red when the signal is not received and may blink or pulsate in some monitors.
Wake up the Display
Restart the Graphics driver with Windows+CTRL+Shift+B Shortcut. Press ‘Windows+CTRL+Shift+B’ shortcut to wake up the PC/Laptop display. There could be a problem with Windows OS where it might not be able to detect the display. Pressing this shortcut key restarts the graphics driver in Windows.
Boot Safe Mode
- If PC is ON, force shutdown the system and then turn it on.
- As soon as the system begins to boot, hold the power button for 10 seconds to turn it off.
- Now press the power button again to turn on the system.
- After Windows restarts, press and hold the power button again to turn off.
- Press the power button once again, and this time, the system enters the Windows Recovery mode (WinRE).
- Then, Go to ‘Troubleshoot>Advanced options>Startup Settings’.
- Click ‘Restart’. After the restart, Press F5 key to select and boot into Safe Mode.