My HP pavilion x 360 with an in built battery does not power up

[Lin16]

When I switch on my HP Pavilion X360 laptop,it turns on but nothing happens after that,just a blank screen,no lights on the keyboard and it produces some sounds. I have tried to power reset it and no success ,I left it on to drain the power recharged it but the problem is still there,I have tried switching it on holding the power button, win and B keys with no success.Kindly help

[Echo_Lake]

@Lin16
Thank you for posting on the HP Support Community.

I see that you're HP pavilion x 360​​​​​​​ computer is not powering on, I appreciate your efforts to try and resolve the issue.​​​​​​​

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• When was the last time it worked fine?
• Have you made any hardware/software changes?
• Have you tried any troubleshooting steps?
• Did this happen after a recent window or software update?

While you respond to that, let's try these steps:

Step 1 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,

Step 2 BIOS Defaults -
1) Shutdown the computer. 
2) Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears. 
3) Press F10 once for BIOS. 
4) Press F9 for BIOS defaults. 
5) Press F10 to save and exit.

If the issue persists and if you're unable to see the display screen,  I would request you to contact our Phone Support and our Support Engineers should be able to sort this out.

HP Support can be reached by clicking on the following link:

• Click on this link – www.hp.com/contacthp/
• Select the product type.
• Enter the serial number of your device or select let HP detect your product option.
• Select the country from the drop-down.
• You should see the HP phone support number or Chat option listed

Hope this helps! Keep me posted for further assistance.
If I have helped you resolve the issue, feel free to give me a virtual high-five by clicking the 'Thumbs Up' icon below, Followed by clicking on "Accept as solution" from the drop-down menu on the upper right corner,

Have a great day!

[Lin16]

Hello thank you for your support,i have followed the steps but there is no display after turning it on and pressing the ESC key.i have never had any software changes but last year around march my laptop had the problem of automatic repair loop and black screen which I fixed 

[Echo_Lake]

@Lin16

Thanks for responding, 

I would recommend you contact our phone support for service options.

Have a nice day 🙂