Homatics Box R 4K Plus

Would you be so kind and explain how and where to set the preferences to not start with DV enabled on Homatics 4K Box? I couldn’t find the setting in ATV14. My TV is old Panasonic plasma, so DV is not supported anyway.

I have the same issue with booting to white screen with every boot after the initial successful “first boot” through “Reboot to Coreelec” in Android.

One of the kids updated the box and broke the CE.

Thank you.