Hide 12 Bit Color

[dits4]

Hello guys.
Sorry for my bad English.
Unintentionally i pressed 12 bit depth and the screen went black! I turned off the mac mini m1 with the button and when I turn it on I'm back on a black screen, same problem in safe mode.
There is no login screen, I had it disabled. How can I initially disable the BetterDisplay?
Τhe mini is connected with a cable USB-C to Display Port to the LG 32UN880-B, I tried with another cable USB Type-C to USB Type-C.
I tried without seeing anything:
Cmd-Space to launch Spotlight, i'm typing terminal/Enter and typing killall betterdisplaycli (betterdisplay) but it doesn't close BetterDisplay.
Ι did many reboots with the mini button.

[waydabber]

Simply changing the Color Mode (on Apple Silicon) is not permanent, it's just a one-time change (unless you enable Configuration Protection as well). So there might be some other issue.

(note: you can kill BetterDisplay by issuing killall BetterDisplay)

[dits4]

I managed to open the settings Sequoia and almost blindly disabled the hdr and the screen turned on! Τhen i reset the Better Display and everything is fine now. Yes, i have Configuration Protection enabled, i don't know why. I also want and can't find how to make the brightness slider be the minimum 10 or 20%, not 0%.

It's easy to disable option 12-bit?