PC won't boot after BIOS Update

[Moe_at_IVL]

I have updated the BIOS of my HP Pavilion Desktop 570-p568ng and now the system won't boot anymore.

It does power up, the screen is black and the power led (white) is constantly blinking long (long on, short off).

I updated from a 2017 version (I think it was F.11) to F.29 Rev.A.

What does the blinking mean? Is the BIOS corrupted? How can I restore it?

Thanks

[Moe_at_IVL · Accepted solution]

Fixed!

I did a cmos reset by the jumper located on the mainboard next the graphicscard. After that the system does boot just fine again.

[Johnharper241]

Shut down your PC completely. Unplug the power cord and remove the battery if it's a laptop. Hold the power button for 60 seconds to completely discharge your PC. Open the PC case and touch a metal surface to discharge your static electricity.

This may help,
John

[Moe_at_IVL]

Did you actually read my reply? The problem is solved. And for the record: shutting down completely did not do the trick, I tried that more than once.