My laptop doesn't turn on , only caps lock light is blinking

[Kunal50]

Hp laptop - 15s-fq2671TU

[Raj_05]

Hi @Kunal50,

Welcome to HP Support Community.

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

A blinking Caps Lock light on your HP laptop (15s model) typically indicates a hardware issue, and the pattern of blinks can help diagnose the problem. Here are some common steps to troubleshoot this issue.

Identify the Blink Code Pattern

• Count the number of times the Caps Lock light blinks before pausing. This code provides insight into the issue:
  • 1 Blink: CPU failure
  • 2 Blinks: BIOS corruption failure
  • 3 Blinks: Memory failure
  • 4 Blinks: Graphics failure
  • 5 Blinks: System board failure
  • 6+ Blinks: Additional hardware issues

Perform a Hard Reset

• Disconnect the laptop from any power source.
• Remove the battery if it's removable.
• Press and hold the power button for 15 seconds to drain any residual charge.
• Reconnect the battery and charger, then try powering on the laptop.

Check the RAM

• If the blink code indicates memory issues (3 blinks), try reseating or replacing the RAM.
• Power off the laptop, remove the back cover, and carefully remove and reinstall the RAM modules.

BIOS Recovery

• If the blink code suggests a BIOS corruption (2 blinks), try recovering the BIOS:
  • Turn off the laptop.
  • Press and hold the Windows + B keys.
  • While holding the keys, press and hold the power button for 2-3 seconds.
  • Release the power button but keep holding the Windows + B keys until the BIOS recovery screen appears.

Test with External Display

• If you're getting 4 blinks (graphics failure), try connecting the laptop to an external monitor to check if the internal display is the issue.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support