BIOS update was interrupted, no display now

[Qmsgirl-55]

I performed a recommended BIOS update, and it apparently was interrupted. Now my unit powers up but there is no display. The hard drive light is lit and the fan is operating.

[Raj_05]

Hi @Qmsgirl-55,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

It sounds like your HP All-in-One 20 is experiencing a BIOS corruption issue due to the interrupted update. Here’s a step-by-step guide to try and recover the BIOS.

Perform a Hard Reset

• Power off your computer and unplug the power cord.
• Hold the power button for 15-20 seconds to discharge any residual power.
• Plug the power cord back in and attempt to power it on.

BIOS Recovery with a USB Drive

You can attempt to recover the BIOS using a USB flash drive:

Steps:

Prepare a USB Flash Drive (at least 8GB):

• Use another computer to download the BIOS recovery file.
• Visit the HP Support site and enter your PC’s model number to find the correct BIOS file.
• Download the BIOS file, then extract the file to the root directory of the USB drive (not in any folder).

Initiate BIOS Recovery:

• Insert the USB flash drive into the affected computer.
• Hold down the Windows + B keys (or Windows + V for some models), and while holding, press the power button for 2-3 seconds, then release it.
• Continue holding the Windows + B (or V) keys for 40 seconds until you hear beeping sounds or the screen displays the BIOS update process.

Follow On-Screen Instructions:

• If the BIOS recovery screen appears, follow the prompts to restore the BIOS.
• Allow the process to complete without interruption.

Use BIOS Reset Jumper (Last Resort)

If none of the above works, you may need to open your All-in-One and reset the BIOS using the jumper on the motherboard. This is usually done by temporarily removing or repositioning the jumper for a few seconds.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support