Slimline 260-a180nd corrupt bios?

[ElPositivo]

Something went wrong with a bios flash update on this pc, and is only giving a black screen when starting up. I cannot get into the bios anymore.

I tried:

- clearing the CMOS using the jumper. 

- to get into the bios update by pressing and holding windows and B keys while starting up the PC, but all I get is the attached screenshot.

- making a USB stick to run bios update from as is described on this page: https://support.hp.com/us-en/document/c04126730#:~:text=Insert%20the%20USB%20flash%20drive,hear%20a%....
But yet again pressing windows and B keys gets me to the attached screen.

Pressing esc key while on that screen does not do anything.

I am stuck now. Is there anything I can do to reflash the bios properly and get this PC working again?

Thanks

Steven

[ti-oui]

This seems to be the same behavioer as in my post ' 

Corrupted Bios 844C and CMOS on a HP Pavilion 790-0109 during an automatic scheduled update.

 ‎03-16-2021 08:00 PM

Product: HP Pavlilion 790-0109'

Other recent ones could be related.

No solution yet on mine.

[ElPositivo]

No solution here yet either. I have bought a CH341A mini programmer to reflash the bios myself, but no luck so far. I am going to buy a new bios chip, flash that and replace the current bios chip on the motherboard as a last possible solution.