HP Pavilion 15cw100 won't turn on: power button lights up for 1 second then turns off

[mcrowley210]

I tried turning my HP Pavillion 15cw100 laptop on and it won't start. The power button lights up white as usual for maybe one second then goes out. There are no other lights on except the charging indicator light showing white/ fully charged. The display doesn't try to come on nor the keyboard lights or system fans.  I've tried hard-resets and even opening the case to disconnect the battery inside thinking I just needed to reset the BIOS or something. Nothing I try works and I'm truly at a loss here. I've tried a different power adapter as well. Please advise or what else I could try.

HP Pavilion 15z-cw100 CTO

[Nirvana_95]

Hi @mcrowley210 

Welcome to the HP Support Community. Thanks for bringing this to our notice.

I see that you are facing No power-related issues on your system. Do not worry, we are here to fix it.

May I know from when are you facing this issue?

Did you make any hardware or software-related changes to it?

I would suggest you please follow the steps shared in the link below and let me know the outcome of it: https://support.hp.com/in-en/help/diagnostics?category=computing&issue=power-boot-issues 

Hope this helps! Keep me posted. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. 

Click the “Yes" on the bottom right to say “Thanks” for helping. 

[mcrowley210]

I followed all the troubleshooting guides for no power/boot. Nothing happened when I try to recover the BIOS either. I made a recovery USB to do so but holding down the windows logo and B doesn't do anything with or without the USB present. The power button lights up for about a second but nothing else happens. 

[mcrowley210]

Also I haven't made any hardware changes to it besides using an external HDD occasionally. I updated the AMD Radeon Software and drivers a few months or so ago, before I had this issue and I reinstalled Realtec audio drivers from the notebooks HP support page probably a week before it his problem. 

[Nirvana_95]

Thanks for your response.

I have sent you a private message with further instructions to get this issue sorted. In order to access your private messages, click the private message icon on the upper right corner of your HP community profile, next to your profile Name or simply click on this link.

Thanks!