Desktop won't boot after BIOS update

[FL29]

Hi,

I just got an Omen 35L desktop, initally it worked fine but after a BIOS upgrade it won't start anymore. The system started to upgrade the BIOS. But after a while the screen went blank and now it won't start anymore.

When powering up the system, the fans and LEDs start but I hear not POST beeps and the screen remains blank.

I also cannot enter the BIOS screen.

I have tried:

- Unplug the PC, hold the power button for 20 seconds to drain residual power, then try booting again.

- CMOS reset using the button on the back

- BIOS recovery using the key combination (WIN+B)

- BIOS recovery using USB BIOS recovery drive

Nothing works.

[Bill_To · Accepted solution]

Greetings @FL29 

Welcome to the HP Forum.

It sounds like the BIOS update has corrupted the BIOS.

And you have tried recovering the BIOS using a bootable USB BIOS recovery drive using the steps found at this HP Site. Scroll down to "Recover the BIOS using a USB recovery drive".

It appears your PC has lost video out and USB function if you cannot recover the BIOS using a USB recovery drive

You have two options:

1. Attempt warranty support by contacting HP Support.

2. Have a local PC Tech program the BIOS using a Serial ISP Programmer.

Regards