Hi, my laptop turns on and off repeatedly without display?

[Charan3e3]

Laptop series is Pavilion 15-n259tx. Suddenly screen started glitching so i switched off my laptop after that when i pressed power button it switches on and turns off without display, this sequence repeats automatically once switched on.I tried to do all tricks with power button but it did not work. Any ideas?

[A4Apollo]

Hi! @Charan3e3, 

Have you tried charging the laptop using a different adapter or battery?

Are you able to boot into BIOS or F2 page from the PC?

Does the laptop shut down while you are at the BIOS page?

Try the steps recommended below.

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.
The computer starts normally or a startup menu opens.
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.

If you are able to boot into BIOS try restoring the BIOS to default and check if it helps.

1.    Turn off the computer and wait five seconds.
2.    Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu.
3.    On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings.
4.    Press F10 to Save and Exit.
5.    Use the arrow keys to select Yes, then press Enter when asked Exit Saving Changes?
6.    Follow the prompts to restart your computer.
 

Also, if you are able to boot into the F2 page try running a system diagnostics test on your PC and check if the hardware components on your PC are functioning correctly.

Refer this article to know more information about running system diagnostics on your PC. Click Here

Let me know how it goes!

Take Care! 🙂

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[Charan3e3]

Thanks for the suggestion. I've not tried with other charger & battery.The main issue is my laptop switches on without display after pressing power button & then turns on & off automatically with just indicating lights on keyboard & no display , this process wont stop even i press & hold power button for for long time. Once display was on while trying with power button but shutdown on the bias page.

[A4Apollo]

Hi! @Charan3e3,

Thanks for the update.

It certainly sounds like a hardware issue with the PC.

Please contact HP support for service options.

Contact HP support using this link. Click Here

Take Care!