Cap lock blinking and screen is blank

[Danni27]

My laptop cap lock keeps blinking and the screen refuses to turn on

[Hawks_Eye]

Hi @Danni27 

Welcome to the HP Support Community!

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

A blinking Caps Lock light and a blank screen on an HP laptop usually indicate a hardware issue. The blinking pattern can help identify the exact problem. Here are some troubleshooting steps:

 

Step 1: Identify the Blink Code

• Count how many times the Caps Lock blinks in a row before pausing.
• Each blink pattern corresponds to a specific hardware issue (e.g., CPU, RAM, BIOS failure)
  HP Notebook PCs - Computer beeps or a light blinks during startup | HP® Support

Step 2: Perform a Hard Reset

1. Turn off the laptop.
2. Disconnect the power adapter and remove the battery (if removable).
3. Hold the power button for 15 seconds to drain residual power.
4. Reconnect the battery and power adapter.
5. Turn on the laptop and check if the issue persists.

Step 3: Reseat the RAM

1. Power off the laptop and unplug all cables.
2. Open the back panel and locate the RAM sticks.
3. Remove and reinsert the RAM securely.
4. Restart the laptop.

Step 4: Recover the BIOS

1. Plug in the power adapter.
2. Hold Windows + B keys, then press the power button for 2-5 seconds.
3. Release the power button but keep holding Windows + B until you hear beeping sounds.
4. If the BIOS recovery screen appears, follow the instructions.

Step 5: Test with an External Monitor

• Connect your laptop to an external display via HDMI.
• If the external monitor works, the issue may be with the internal display or GPU.

Let me know what results you get, and I can refine the approach further!

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye