HP Envy Touchsmart 15 - Black Screen no BIOS. USB BIOS recovery did not work

[glacier_bay]

I believe my laptop has a corrupted BIOS and/or CMOS. When powered on, power and WiFi lights come on, fan turns for about 5 seconds then becomes silent. Complete black screen with nothing displayed.

I downloaded the BIOS and made a BIOS Recovery Flash Drive, plugged in the USB drive. Tried the combination of Windows + B (or Windows + V) keys by following the instructions and youtube videos. But the laptop does not seem to respond to the key sequence:

Holding Windows and B (or V) keys, while press Power for 2-3 seconds, keep holding Windows and B (or V) keys... I've hold those keys for as long as 3 minutes... nothing happens.

Anything else I can try? Thank you for any advice.

[Riddle_Decipher]

@glacier_bay Click here to perform a hard reset on your device

If the issue persists, after the above steps, try the below:

1. Turn off the notebook.

2. Plug the notebook into a power source using the power adapter.

3. With the notebook off, press and hold the Windows logo key  and the B key at the same time.

      NOTE:

   On some notebook models, it might be necessary to press and hold the Windows logo key  and the V key.

4. While pressing those keys, press and hold the Power button on the computer for 2 to 3 seconds, and then release the Power button but continue to hold the Windows logo key  and the B or V key until the HP BIOS update screen displays or you hear a beeping sound (usually 8 beeps).

   The HP BIOS Update screen displays, and the BIOS update begins automatically. This might take several minutes, and you might hear additional beeping sounds.

   • If the HP BIOS Update screen does not display, repeat the previous steps. If the issue persists after repeating the steps, skip to the next step to Download a replacement BIOS file.

   • If the Power light turns off, the notebook has turned off because the Power button was held too long. Repeat the previous steps, making sure to hold the Power button for 2 to 3 seconds only.

CLICK HERE FOR MORE STEPS AND INSTRUCTIONS.

(By the end of this article all the issues should be resolved)

P.S: Welcome to HP Community 😉

Keep me posted, as I (Or a trusted colleague) shall follow-up on this case to ensure the concern has been addressed, 

And your device is up and running again, only in case you don't get back to us, first! 

That said, If the information I've provided was helpful, give us some reinforcement by clicking the solution and kudos buttons, 

That'll help us, and others see that we've got the answers!

Good Luck.

[glacier_bay]

Hi Riddle_Decipher,

Let me first say "Thank you" for getting back to me on this issue, it's very much appreciated.

I have followed the steps you included but the power reset plus key combinations/sequences did not work for me - the BIOS update screen did not come up. The only thing I saw, after holding the Win+B (or V) keys at the end of the sequence, was Caps Lock blinking twice every 3 seconds or so. The screen was completely dark/black, no beeps.

BTW, I also followed the link to download a BIOS from HP download site for my specific model (sp88646.exe F.72 Rev A) and created a Recovery USB Flash drive, and attempted the above Power/Windows +B or V key sequences with the recovery USB plugged in. No response either.

Please advice. Thank you.

-Glacier

[praveen196]

@glacier_bay

Thank you for the update.

In that case, I would suggest you contact our phone support and check for the support option. They will help you.

Here is how you can get in touch with phone support.
 

1)Click on this link - www.hp.com/contacthp/

2)Select the product type.

3)Enter the serial number of your device or select let HP detect your product option.

4)Select the country from the drop-down.

5)You should see the HP phone support number or Chat option listed.
 

We are experiencing longer than expected wait times to reach an agent due to the CoViD-19 impact and there might have been issues in you getting the expected resolution on the issue. 

Have a nice day!!