My hp laptop screen is stuck on black screen only a white line blinking on the screen's right corner

[anuragsahani]

Caps lock key is continously blinking and a white line on black screen is blinking only how to start my laptop.

[Hawks_Eye]

Hi @anuragsahani 

Welcome to the HP Support Community!

Thanks for posting your query! We're here to help you get back up and running.

I’m sorry you’re dealing with this—it sounds like a boot failure or hardware issue, especially with the Caps Lock blinking. 

Here are some steps to troubleshoot:

1. Perform a Hard Reset

• Turn off the laptop.
• Disconnect the power adapter and remove the battery (if removable).
• Hold the power button for 30 seconds to drain residual power.
• Reconnect the battery and power adapter, then try booting again.

2. Identify the Blink Code

• HP laptops use Caps Lock blinking patterns to indicate hardware failures.
• Count the number of blinks and check HP’s blink code guide here.

3. Try BIOS Recovery

• Press Win + B or Fn + B while powering on the laptop.
• If the BIOS recovery screen appears, follow the instructions.

4. Reseat RAM & Storage

• If comfortable, remove and reinsert the RAM and SSD/HDD.
• Loose connections can cause boot failures.

5. Connect to an External Display

• Plug in an external monitor via HDMI or VGA.
• If the display works, the issue might be with the laptop’s screen.

 

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Take care, and have an amazing day!

Regards, 

Hawks_Eye