Pavilion DV5 won't turn on

[CailínRua]

I have an old Pavilion DV5 laptop.  The battery hasn't long since stopped working but I was still able to use the laptop with the mains charger.  Now it won't power on.  The small white LED light near the mains charger socket lights up but nothing else happens when I press the power on button.  Appreciate some help. 

[A4Apollo]

Hey there! @CailínRua, Thanks for stopping by the HP Support Forums!

I understand you have issues powering on your laptop.

Don't worry I'd like to help you out.

Did you make any hardware or software changes on your PC?

Have you tried checking with a different battery or adapter?

It could be an issue with the power button board on your laptop could have gone faulty.

Try plugging the adapter into a different wall outlet and check if it helps.

Please try the steps recommended below.

To perform a power reset on a laptop with a removable battery, use the following steps:
Turn off the computer.
Remove the computer from any port replicator or docking station.
Disconnect all external connected peripheral devices such as USB storage devices, external displays, and printers.
Unplug the AC adapter from the computer.
Remove the battery from the battery compartment.
With the battery and power cord unplugged, press and hold the Power button for about 15 seconds to drain any residual electrical charge from the capacitors.
Insert the battery and plug the AC adapter back into the laptop, but do not connect any of the peripheral devices.
Press the Power button to turn on the computer.
If a startup menu opens, use the arrow keys to select Start Windows Normally, and then press the Enter key.
After Windows opens, reconnect each peripheral device that was disconnected, one device at a time, until all devices are reconnected.
Your laptop has been reset. After a power reset, it is a good idea to run Windows Update and HP Support Assistant to update all device drivers. 

Also, refer this article to further troubleshoot no power issues with your laptop.

If the issue still persists after trying out the steps. It is a hardware issue with your laptop.

Please contact HP support for service options.

Link to contact HP.

Hope to hear from you soon!

Have a great day! 🙂

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