We can disable CFG_LOCK directly from BIOS Setup -> Boot -> CFG-Lock.
I was on F6g
1. Took a backup of the BIOS to the USB
2 Flashed to F6i. Screen went black, presumably it finished
3. Hard power off & on & back in bios
- cfg lock disabled
- internal wifi disabled
- XMP set back to 1
- gfx set to igfx ( that's the config I am using on my OC EFI)
- secure boot was left at Win8/10. I don't remember tinkering with it
- TB s enabled (first item, all rest are disabled)
- USB legacy & XHCI handoff enabled
- set boot #1 to WD770
4. Reboot and......... it's booting endlessly & powering off & on & off & on...
5. Finally get back into the BIOS & its now all RED & F6 from 2019
6. Try to refresh back to F9g which was saved on USB & file is corrupt (geez)
7. Reflash F6i from USB which was downloaded from here & reboot & black screen
8. Back into bios & cfg lock disable again & set gfx to igfx & reboot & black screen
What is odd is I have AMD 580 DisplayPort out to internal db in & USB out to monitor
& I used to never be able to get into the BIOS before on F9g, so maybe they fixed something in F9i
& messed something up
Now I could use some help with next steps, as I am stuck.
EDIT
See next post below.
I'm leaving my bios upgrades steps here in case anyone else runs into this issue during a bios update