Good morning,
I updated my Sk Madre Z590 Phantom Gaming 4 to version P2.20 of 12/18/2025. Unfortunately, upon reboot, the system no longer sees the MBR-formatted disks bootable but only the GPT one. Unfortunately on the MBR disk I have the main operating system and now I can no longer access it. I tried to change the settings but to no avail.
Is there a way to go back to the previous BIOS or (better) a set of options to be able to continue using my system disk with this update?
Thank you.