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HP Recommended
HP Pavilion All-in-One - 24-b109

capture 3.jpgcapture 4.jpghi,

 

After updating my bios to the latest version, i lost my touchscreen and two usb 2.0 ports, the other two usb 3.0 ports are working.
I tried to downgrade, unfortunately I can't

the message displays "The system BIOS rollback failed. Unable to open BIOS Signature file"

Thanks for your help.

1 REPLY 1
HP Recommended

Have you tried downloading the BIOS file from the support portal, extracting it and then putting the BIOS ROM file and the SIG (signature) file on a USB flash drive?

 

Here is the HP driver portal for your PC

https://support.hp.com/us-en/drivers/selfservice/hp-pavilion-24-b100-all-in-one-desktop-pc-series/12...

Check all four BIOS versions to find one that has a SIG file and use that one.

 

Once you do that, try rolling back the BIOS.



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