HP 15 won't start up

[SHOFF]

Computer is not powering on.  We changed out the power jack.  We think everything is connected.  We get a couple white lights next to the power jack when we push the power button, but nothing else.

[praveen196]

@SHOFF Welcome to HP Community!

I understand that the laptop is not powering on.

Do not worry. Let's work together and get this issue addressed.

Please perform the below steps and check.

Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Remove the Battery. ( not for Built-in Battery computer ) 

4) Press and hold down the power button for 15 to 20 seconds.  

5) Plug-in the Adapter and put the Battery back into the computer if it's a (removable battery)

6) Try to turn on the computer and check, If the issue persists continue next step

Set BIOS default and restart:

1. Restart your notebook.
2. During startup, press F10 repeatedly until the BIOS menu is displayed.
3. Once the BIOS menu is displayed, press F9 to restore factory defaults.
4. Select Yes to confirm.
5. Press F10 to save changes and exit.
6. Select Yes to confirm.
7. The computer restarts using the default settings.

Keep us posted,

If you would like to thank us for our efforts to help you, 

Give us a virtual high-five by clicking the 'Thumbs Up' icon below, followed by clicking on the "Accept as solution" on this post, 

Have a great day!

[SHOFF]

Hello -- when we follow the steps, nothing happens.  The only thing that happens is that the white light flashes three times (next to the power cord/power jack) when we push the power button.  We can't start up the computer (and, obviously, we can't restart the computer) to get into BIOS.  Thanks.

[KrazyToad]

@SHOFF

At this point I suggest you contact HP Support for Service Options

Click on this link - www.hp.com/contacthp/ and select your Country to get the Contact details for HP Support

Thank you