LAPTOP HP 15S CAN'T TURN ON, POWER INDICATOR BLINK 1x

[HuumbleBee]

I have an HP 15s fq2642tu laptop, and right now it can't turn on. When I press the power button, the power indicator blinks once. I have removed the battery, pressed the power button for 20-60 seconds, and tried to remove all peripherals. I also searched for the CMOS battery, but this model does not have one. I tried using the charger without the battery, but the problem persists.

[Alfiehenry]

My HP 15s fq2642tu laptop won't turn on. The power indicator blinks once. I've tried removing the battery, holding the power button, disconnecting peripherals, and using the charger without the battery. There's no CMOS battery.

[Raj_05]

Hi @HuumbleBee,

Welcome to HP Support Community.

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

A single blink of the power indicator on your HP 15s fq2642tu laptop generally indicates a hardware issue. Since you've already tried several troubleshooting steps, let's go through a few more to see if we can identify and potentially resolve the issue.

Hard Reset:

• Disconnect the power adapter.
• Remove the battery (if removable).
• Press and hold the power button for 15-20 seconds to discharge any residual electrical charge.
• Reconnect the battery and power adapter.
• Try turning on the laptop.

Check Power Adapter and Battery:

• Ensure the power adapter is working by testing it with another compatible device if available.
• Try a different power adapter if you have one.
• Inspect the battery for any visible damage or swelling.

Internal Component Reseating:

• If comfortable, open the back panel of the laptop.
• Reseat the RAM modules by removing and reinserting them.
• Check if any other internal components, like the hard drive or SSD, are loose and securely reconnect them.

External Display:

• Connect the laptop to an external monitor to check if it's a display issue.
• Press the appropriate key (usually F4 or Fn + F4) to switch to the external display.

BIOS Recovery:

• Disconnect the power adapter.
• Hold down the Windows key and the B key.
• While holding these keys, press and hold the power button for 2-3 seconds, then release the power button but continue holding the Windows and B keys until the BIOS recovery screen appears (if supported).

Check for Loose Connections:

• Ensure all internal cables and connections are secure.
• Sometimes, a loose connection can cause power issues.

If none of these steps work, the issue might be with the motherboard, power circuitry, or another critical internal component.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support