05-11-2016 08:49 AM
05-11-2016 12:36 PM
Have you done a hard reset. if not, perform it.
disconnect the power cord, if the battery is removable, remove it. without the battery and power cord, press and hold the power button for 15-20 seconds.
Now connect only the power cord and without the battery, try to turn the PC ON.
If the issue persists, try different wall outlet.
If it still does not power ON, you will to consider this as a Hardware failure.
You can contact HP and setup a service or contact any authorised service provider.