Laptop light turns on, but the screen won’t turn on, no sound & caps lock flight flashes.

[chelskim]

Product number: 2F8Q3PA

My laptop ‘on’ light turns on, caps lock light flashes, no sound or fan, laptop screen stays black & doesn’t actually turn on. 

I did update it last week, I’m pretty sure it’s windows 10 or 11. I have tried trouble shooting it & it did not work. 

[Nal_NR]

Hi @chelskim,

Welcome to the HP Support Community. 

I'd be glad to help you! 

If your HP Pavilion x360 Convertible 14-dw1000 laptop powers on but the screen remains black, there's no sound, and the Caps Lock light is flashing, it’s possible that the issue could be related to hardware or software problems. Here’s a structured approach to troubleshooting this issue:

1. Identify the Flashing Caps Lock Light

1. Count the Blinks:
   • Note the pattern of the Caps Lock light (e.g., a specific number of blinks). This pattern can be a diagnostic code indicating specific issues. Refer to the HP support website or your laptop's service manual for the meaning of these codes.

2. Perform a Hard Reset

Disconnect Power Sources:

• Disconnect the power adapter and remove the battery (if removable).

Discharge Residual Power:

• Press and hold the power button for 15-30 seconds to discharge any residual power.

Reconnect Power:

• Reinsert the battery (if removed), plug in the power adapter, and attempt to power on the laptop.

3. Check for External Display

Connect to an External Monitor:

• Connect your laptop to an external monitor or TV using an HDMI or VGA cable. This can help determine if the issue is with the laptop's internal display or another component.

Toggle Display Mode:

• Use the function keys (such as F4, F5, or F8) to switch between display modes. Some laptops use these keys to toggle between the internal display and an external monitor.

4. Check for Hardware Issues

Inspect Internal Components:

• If you are comfortable with disassembly, open the laptop and check for loose connections or damaged components. Pay special attention to the display cable connections and memory modules.

Re-seat Components:

• Reseat the RAM modules and any removable storage components to ensure they are properly connected.

Please find the remaining steps in the next post. 

Hope this helps! Keep me posted for further assistance

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

[Nal_NR]

Hi @chelskim,

Please find the remaining steps below. 

5. Test with Minimal Hardware

1. Boot with Minimal Hardware:
   • Remove any non-essential peripherals (e.g., USB devices) and try booting the laptop with just the essential components (battery, AC adapter, and internal components).

6. Perform BIOS/UEFI Recovery

1. BIOS Recovery:
   • If your laptop supports BIOS recovery, try accessing it by pressing a specific key combination (such as Esc or F2) during startup. Follow the on-screen instructions to recover or reset BIOS settings.

7. Check for System Updates and Software Issues

Boot into Safe Mode:

• If possible, try booting into Safe Mode (press Shift + F8 or F11 during startup) to see if the issue is related to recent software or driver updates.

Remove Recent Updates:

• If you suspect a recent update caused the issue, you may need to roll back the update or perform a system restore to a previous point.

8. Perform a System Recovery or Reinstall

System Recovery:

• If you have a recovery partition or recovery media, you might need to perform a system recovery or factory reset to restore your laptop to its original state.

Reinstall Windows:

• As a last resort, you can reinstall Windows using a bootable USB drive or recovery media. Ensure that you back up any important data if possible.

If none of the above steps resolve the issue, the problem might be related to internal hardware components or a more complex issue. Contact HP Phone Support or visit a certified repair center for further diagnosis and repair.

Hope this helps! Keep me posted for further assistance

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.