Blow sound and no boot

[Gentle_Ninja]

Hello, just a few minutes ago, I heard a blow sound while using my pavilion 15-cd0xx with the battery out, I hibernated it to see what that sound was but thought it was the adapter case snapping open(I don't know why). Now, when I turn it back on, it goes off after just a few seconds but the power button light stays on for some extra seconds before going off.

[Anand_Andy]

Hi @Gentle_Ninja,

Welcome to the HP Support Community

I understand you are facing a boot-related issue with your HP Pavilion 15-Cd0xx. Not to worry I will help you to get a resolution to resolve the issue.

Lets' try the below steps:

Crisis BIOS Recovery

1. Turn off the computer, and then connect the power cord.
2. Press and hold the Windows key and the B key at the same time, and then press and hold the Power button for 2 to 3 seconds.

1. Release the Power button but continue pressing the Windows and B keys. You might hear a series of beeps.

• If the HP BIOS Update screen does not display, repeat the previous steps but press the Windows key and the V key. If the screen still does not display, your computer might not support the feature or there is a hard drive issue. Continue to the next section to Recover the BIOS using a USB recovery drive.
• If the Power light turns off, the Power button was held too long. Repeat the previous steps, making sure to hold the Power button for only 2 to 3 seconds.
• If a BIOS recovery message repeatedly displays, continue to the next section to Recover the BIOS using a USB recovery drive.
• If a message that the computer improperly shut down or a boot problem is detected displays, follow the on-screen instructions to resolve the error.
• If Windows starts, update to the latest BIOS version. Go to HP Notebook PCs - Updating the BIOS for more information.
  The HP BIOS Update screen displays and the recovery begins automatically.

If the issue persists, then please follow the steps mentioned on this document: HP PCs - Computer does not boot or start

Hope this helps! Keep me posted. 

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