Screen will not turn

[Sensortest]

The screen will not turn when I turn the Laptop

[VikramTheGreat]

Hi @Sensortest,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

It sounds like your HP laptop powers on, but the display stays black or doesn’t respond. This can feel really unsettling. Let’s try a few proven steps to bring that screen back to life:

1. Check for Power and Indicators

• Make sure the power light and Caps Lock/Num Lock LEDs behave normally.
• If you see blinking patterns (e.g., 3 long and 2 short blinks), that’s a diagnostic code indicating a hardware issue.

2. Perform a Hard Reset

1. Turn off the laptop and unplug the charger.
2. Remove the battery (if removable).
3. Press and hold the power button for 15 seconds.
4. Reconnect the charger (leave the battery out for now) and try powering on.

3. Test with an External Display

• Connect your laptop to an external monitor or TV via HDMI.
• If the external display works, the issue is likely with the internal screen or its cable.

4. Run HP Diagnostics

• If the screen stays black but the laptop powers on, press Esc repeatedly right after turning it on, then F2 for diagnostics.
• If nothing shows, the problem may be deeper (motherboard, GPU, or display cable).

5. Reset BIOS

• If you can access the BIOS, restore defaults.
• If not, disconnect the main battery and CMOS battery for a few minutes (if accessible).

I hope this helps.

Take care and have an amazing day!
 

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Regards,

VikramTheGreat