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- HP Community
- Desktops
- Desktop Operating Systems and Recovery
- Re: Roll back Bios Update

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04-30-2018 07:13 PM
Hi Chris,
The link I posted does reference other links. Open the the tab for 80.20 and look at the revision history.
04-30-2018 07:19 PM
Follow up to using latest HP Diagnostics USB flash drive to boot.
I cannot boot from any hadr drive, DVD internal hard drive, USB.
All HP Diagnostic tools that came with PC work with out failure.
Ran extensive tests on all components. No errors.
04-30-2018 07:38 PM - edited 04-30-2018 07:50 PM
Hi,
Were you able to boot the latest HP USB diagnostic flash drive? The screen would have indicated version 6.6.2.
If no, then remove the HD and make sure that the optical drive is empty and all other USB devices except the keyboard and mouse have been removed.
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HP holds the information on how to do BIOS roll backs very close to the chest. HP doesn't publish the documentation on how to do the roll back by using the USB Diagnostic firmware management functions. This information on BIOS recovery is claimed to work for both laptops and PCs.
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